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Search found 262 matches

by BigBlue94
Wed Apr 24, 2019 9:53 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Yeah, its stressful!

Hope the new gasket fits better... notice the seal pattern on the one that burned out.

Image
by BigBlue94
Tue Apr 23, 2019 6:00 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Just ordered .028, .030, and .032 screw in restrictors and some new fuel bowl and baseplate gaskets. The ones I got today are indeed .035" and .040" They should be here tomorrow, along with my header gasket. Tonight I'll get the carb and intake pulled off and slide the headers over in prep...
by BigBlue94
Tue Apr 23, 2019 12:17 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Just start your QF carburetor jets, restrictors and bleed collection for future tuning. Do the new ones measure .035" and .040"? If so here is the .030" https://www.holley.com/products/fuel_systems/carburetor_components/jets_metering_rods_bleeds/bleeds_and_emulsion_jets/parts/7-30QFT...
by BigBlue94
Tue Apr 23, 2019 10:39 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Lol yeah, that's 40 bucks down the rabbit hole. They just showed up. HOWEVER! The restrictors that came in my carb are different looking. By this I mean the actual jet outlet hole. My old ones were off center and with no crown cut into the face. The new ones are perfectly centered and have a small c...
by BigBlue94
Tue Apr 23, 2019 10:12 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Yes, these were behind the power valve in the metering block. My number drills only go down to .040" and that one wouldn't fit. Found an old spark plug gap tool with wires and the smallest was .035", and it fit perfectly. Maybe .001 under size at the most. No, there were no markings on the...
by BigBlue94
Mon Apr 22, 2019 7:50 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Found the exhaust leak... remflex gasket blew out of the #4 header flange.
by BigBlue94
Mon Apr 22, 2019 7:29 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Best I could measure, the hole in my PC restrictors is .035, matching the stat on my card for a high speed bleed

Yes 6-32
by BigBlue94
Mon Apr 22, 2019 6:51 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Just ordered those .035 and .040 restrictors and next day aired them
by BigBlue94
Mon Apr 22, 2019 6:44 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

I tried the larger .059 jets and wow, terribly rich at idle. Gotta wait for the headers to cool and pull the front bowl. I'll go back to the .055 jets and check the pv restrictor. I found one loose header nut, and made some spacers to even the clamps out between header and intake flange thickness. N...
by BigBlue94
Mon Apr 22, 2019 6:01 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Indeed it was, dry rotted it appears. Good thing I had a brand new spare in the old 390.
by BigBlue94
Mon Apr 22, 2019 5:40 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Accelerator pump leaks upon throttle return... I assume its ruptured?
by BigBlue94
Mon Apr 22, 2019 5:14 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Is the exhaust leak at the head causing me issues with the AFR readings?
by BigBlue94
Mon Apr 22, 2019 5:10 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Yes you need a pair of restrictors. I'm revising what I previously posted. The engine surge could be from the mid throttle being too lean. Does installing larger main jets bring the mid throttle A/F ratio down from 14-15.5 ? Cant find power valve restrictors on summit. Nor do I see one listed under...
by BigBlue94
Mon Apr 22, 2019 4:57 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Everything looks ok except heavy throttle is rich. I would think going down to a .040 Power Valve restrictor would get you very close. I would start out with two .035" and if it is too lean drill them out little at a time till it is closer to a 13 A/F ratio and use spark plug color to fine tun...
by BigBlue94
Mon Apr 22, 2019 4:13 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Drove it 20 miles, mostly back roads, some small town, and some highway. At 45 on the backroads the AFR is bouncing between 14 and 15.5 20mph in 3rd, it was surging slightly. Dont recall the AFR. 75mph at 3200 rpm I was again 14-15 AFR. Heavy throttle and it's a bit rich 11-12 AFR. Temps 175-192 Oil...
by BigBlue94
Mon Apr 22, 2019 11:27 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Because I'm a carb noob! And that was before I'd driven it, which have me different readings than revving in neutral in the shop.

I thought the main jets affected the cruise circuit, and the power valve did the WOT. I'm lean at cruise and rich when I stomp on it.
by BigBlue94
Mon Apr 22, 2019 10:58 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Nope, haven't checked total timing. I set it to 14 with the dizzy vac unhooked. 15" Hg right where it was with the old engine and stock cam. As for drilling the jets, I did do it by hand with a Jacob's #0 chuck holding the bit, and with the next larger drill than would fit through the hole. I h...
by BigBlue94
Sun Apr 21, 2019 8:05 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Yeah, I adjusted the idle mixture screws and couldn't get the vacuum much above 15. So i adjusted them to get the idle mixture at 13ish. Vac still at 15.

In fourth gear, it's gutless at 45 or so. But drop into 3rd and, as you heard, it's got plenty of power.

Currently the main jets are .055"
by BigBlue94
Sun Apr 21, 2019 4:49 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Just got back from a 4 mile drive! Definitely a little lean at cruise, about 15-17 AFR.

Punching the throttle it goes a tad rich, about 11.

The needle was moving constantly so an exact measurement was tough. 2 miles in, the idle seemed to have leaned out to 14-15

https://youtu.be/zobA_DZ5Zzs
by BigBlue94
Sun Apr 21, 2019 4:00 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Master cylinder rod had this eyelet that could adjust. So I turned it 2 rotations out. I can now engage reverse and first without a single grind of a gear!
by BigBlue94
Sun Apr 21, 2019 3:45 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Clutch still not working.

15" of vacuum at idle. 750 rpm
Timing set to 14° BTDC
AFR:
- idle 13
- partial throttle 16,17
- WOT 10
by BigBlue94
Sun Apr 21, 2019 12:28 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Clutch master is out, finally. Those two nuts are a PITA.

There was a slight deflection and maybe a small crack. Have to investigate further. Better to put the plate inside or outside the cab?
by BigBlue94
Sun Apr 21, 2019 9:28 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

I cant get the clutch adjusted right either. Haven't checked visually, but it's not fully engaging. Hydraulic system is fully bled. The slave seems to not be extending enough, and collapses too far if I push the clutch fork forwards. Have someone function the clutch pedal while you watch the slave ...
by BigBlue94
Sat Apr 20, 2019 10:53 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

It is a 6.5 PV. I haven't measured vacuum. I'll add that to my list for tomorrow. I have an older 5.5 as well.

No where in my town stocks Holley parts. I'll have to have anything I need overnighted.

10-4 on the balancer
by BigBlue94
Sat Apr 20, 2019 10:30 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

I'm going off a self made mark on the balancer for TDC, as my pointer is missing. I'm using the timing cover marks. My dizzy paperwork says 24° @ I think 3000rpm. How would I know if it goes past 36? So being to lean means opening up the jets. I did open another set to .059". I'll try them tomo...
by BigBlue94
Sat Apr 20, 2019 7:32 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

What is the air/fuel ratio at mid throttle and WOT? The Schneider 140H cam can use a little more initial timing. AFR 16+, maybe up to 18. Seems to keep leaning out the more throttle I give it, haven't gotten it past 2500 rpm. By more timing, you mean advance to say 14° BTDC from 10°. That seems to ...
by BigBlue94
Sat Apr 20, 2019 6:21 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Help! Carb noob in distress! Okay, idle mixture is good, at running temps, at 13.2. Idle at 775 rpm. Timing 10° BTDC. Stock quickfuel (Holley 4160) 450 cfm. Jets were labeled as 56, but I couldn't get a .055 drill through it. So I drilled them out to the .055. I only have jets up to 53. I have # ser...
by BigBlue94
Mon Apr 15, 2019 3:24 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 4.9 300 build
Replies: 3
Views: 208

Re: 4.9 300 build

There isn't much you can do to it without freaking out your computer system. You can swap to higher lift/roller rockers. You can swap cams, but only a select few, and they probably arent much better. You could have one custom ground too. For the speed density efi v8s, the magic number for efi friend...
by BigBlue94
Mon Apr 15, 2019 11:46 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Re; Yellow warning light: Could you hook up a relay tied to the key that energizes the ignition circuit, eliminating the need for the separate switch / light? I tried, and couldn't get it to work properly. I couldn't find a wire that was hot in both start and run, and a two wire setup to solve that...
by BigBlue94
Mon Apr 15, 2019 10:10 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Got my cam broke in yesterday morning. Had excellent oil pressure, good coolant temps, and no fluid leaks. I still have an exhaust leak, but its better. Now to tune the idle mixture, set the idle, and set the fuel pressure. Then it's time to go for a spin! This was the very end of breakin. The yello...
by BigBlue94
Sat Apr 13, 2019 9:30 am
Forum: 240-300 "Big Block" Six Performance
Topic: EDIS-6, how does/did you attach your 36-1
Replies: 7
Views: 199

Re: EDIS-6, how does/did you attach your 36-1

My first thought were the threaded holes in the balancer. Are those the puller holes you speak of?

You could make a spacer with holes for the balancer holes and offset holes for the sprocket. Kinda like a wheel spacer has.

Or find one that has no holes and drill your own.
by BigBlue94
Fri Apr 12, 2019 12:38 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Also true. Compounds in today's fuel and combustion by-product compounds in your crankcase can also cause swelling over time, making "re-usable" gaskets "not-so-reusable". Understandable. The odd thing is this gasket has no more than 15 minutes of time on the engine while runnin...
by BigBlue94
Fri Apr 12, 2019 10:49 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

That's true. But this gasket only touched oil. I used some silicone hose to siphon my old fuel out and it swelled like crazy
by BigBlue94
Fri Apr 12, 2019 9:55 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

So I went to break in the cam, and after 5 minutes, i had so much oil leaking out the half bolted cut up valve cover, I decided to put my actual valve cover on. Well when I laid the rubber felpro gasket backbone the head, it was an inch too long! So I ordered a bluestripe cork one so I'd have it tod...
by BigBlue94
Wed Apr 10, 2019 12:53 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 89 4.9 cam timing
Replies: 10
Views: 373

Re: 89 4.9 cam timing

1986F150six wrote:
BigBlue94 wrote:Nice!

A 10,000 lb toolbox!?


Deep well sockets? :lol:


Must be made of lead!
by BigBlue94
Tue Apr 09, 2019 6:04 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 89 4.9 cam timing
Replies: 10
Views: 373

Re: 89 4.9 cam timing

Nice!

A 10,000 lb toolbox!?
by BigBlue94
Tue Apr 09, 2019 12:43 pm
Forum: 240-300 "Big Block" Six Performance
Topic: Offenhouser Source
Replies: 3
Views: 210

Re: Offenhouser Source

Neat! A finned side plate and valve cover would be SWEET!

I already have a Clifford intake so the rest doesn't really interest me lol
by BigBlue94
Tue Apr 09, 2019 11:07 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Thanks! Yeah I cant wait to get it out of the shop it's been parked in for nearly 3 years. Between coil issues, TTB rebuilds, carb rebuilds, a mystery illness, and a blown head gasket, it's about darn time I get to enjoy a bronco again. 3 weeks from now itll be driving 900 miles to Moab for the bron...
by BigBlue94
Tue Apr 09, 2019 9:06 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

I hear the exhaust leak and also hear something that sounds like a gear whine? Those are my timing gears, and have always sounded like that. They are both steel or iron, but not straight cut. It sounds more pronounced in that video than in person. Be cool if that was a supercharger lol The exhaust ...
by BigBlue94
Mon Apr 08, 2019 7:32 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

So I ran a wire from my aux battery to a rocker switch, then a wire to existing turn on wire for my ignition. That functions perfectly. First crank it fired up. Even idled on it's own. I've run it about 10 minutes but I didnt have a full radiator, so it got to 210 degrees and I shut it down. The the...
by BigBlue94
Mon Apr 08, 2019 6:29 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Alright, I just got home from work, so here is my starter solenoid, left is the front. On the left terminal is the battery, alternator fusible link, the 12v supply for the secondary ignition solenoid, and two light bars. Nothing on the next terminal. The next one has the Red/Lt Green wire that used ...
by BigBlue94
Mon Apr 08, 2019 12:27 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

I see. I will say most all wires I test that are hot are 12.4v or so.
by BigBlue94
Mon Apr 08, 2019 12:02 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Aye, I've seen the 'bypass' on the switch diagram. I cant recall if the ign solenoid clicked on with both leads hooked up. With just the coil wire, it clicks on in run and off in start. I'll check tonight. Is it possible I snipped a wire that I shouldn't have when removing the rest of the engine bay...
by BigBlue94
Mon Apr 08, 2019 11:08 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

OK Then use one of the wires that is hot only when the ignition switch is on (not Start) to run the power relay and keep the jumper you have going from the starter solenoid to the power relay to run the power relay during start. When that jumper was on, I only had spark on the start position. As so...
by BigBlue94
Mon Apr 08, 2019 9:29 am
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

OK Then use one of the wires that is hot only when the ignition switch is on (not Start) to run the power relay and keep the jumper you have going from the starter solenoid to the power relay to run the power relay during start. When that jumper was on, I only had spark on the start position. As so...
by BigBlue94
Sun Apr 07, 2019 6:56 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

There are two wires from ign switch that are hot only in start position. I went through ever single one again and found none that are hot in both run and start.
by BigBlue94
Sun Apr 07, 2019 6:32 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

There should be a wire that is hot only when the switch is turned to the start position or else how is the starter solenoid working? I dont know. I musta I missed or misread it? I'm fairly frustrated now lol. Been a long day of chasing my tail. It's tough to get to all those wires under the dash. I...
by BigBlue94
Sun Apr 07, 2019 5:40 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

Yes 85 bronco factory 4.9. Had been hacked before I got it, with a modified points dizzy doing the ignition. Dropped the column, checked every wire, both the ones coming from the key cylinder and the ones coming from the switch halfway down the column. There are wires that are hot only in the run po...
by BigBlue94
Sun Apr 07, 2019 4:48 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

The red wire should be on when the ignition switch is on or over to start. It looks like the best way to fix the problem is to run a new wire from the ignition switch. That's what is suggested, but this method was suggested so as to not have to get in the column. Where do I hook it up to the switch?
by BigBlue94
Sun Apr 07, 2019 4:06 pm
Forum: 240-300 "Big Block" Six Performance
Topic: 300 torque build 85 Bronco
Replies: 272
Views: 12971

Re: 300 torque build 85 Bronco

It sounds like you've got a power wire that only sees power with the ignition switch in the run position. You need to add one that also sees power in the start position. I know the older stuff ( DSII trucks ) used the small Ign. terminal on the starter solenoid for a bypass while cranking. They had...