Been driving the new 200.

[mysavioreigns]

Well, I have been driving the new 200 I dropped into my 66 Mustang. I'll try to get some more pics up. I've driven it to school, so I did make it from point A to point B, but I thought I should ask you guys about some problems I am having.

1. The car is shaking, a lot. I noticed that when I'm driving, there is a noticeable "shake" to it that goes in rhythm with the RPM. I can be going 50 mph, and it won't do it (a lot) if I'm not pushing the gas. But if I'm hitting the gas hard at 25 mph, it's shake shake shake shake...

2. The idle mixture screw seems to be really screwed up. We can screw it all the way in and all the way out with almost no change. I wonder if perhaps the float is too high? That is a wild guess though.

3. The engine sounds WONDERFUL at idle, and when I drop it in gear, it drops the RPMs a lot. It still runs well, but it seems like it should not be so low. It's also a little sluggish. It really responds well in idle, but not in gear.

Now, I think I have the solution to that problem, so let's see how close I am
----------

I still have the Load-O with the H/W 5200. If I remember correctly (it's been a while), it will do this - sound great in idle, but when driving it is a little sluggish. Is this true?

If so, will it hurt anything to drive it around like this for a little while till I can get my DSII distrubutor to work? I don't mind driving a sluggish car; it feels great after 6 months to have a car that drives!

Thanks guys, sorry for the long post.

 

[jamyers]

First thing to do is find out what's up with the idle mixture screw - if it's not having any effect, there's some trash inside the carb plugging something up, which could well cause all of the above symptoms.

 

[JackFish]

1. The car is shaking, a lot. I noticed that when I'm driving, there is a noticeable "shake" to it that goes in rhythm with the RPM.
----------
I still have the Load-O with the H/W 5200.

 

[Bort62]

Alright, the idle mixture screw problem is indicative of something else.

Either, it is plugged - or your idle is set too high and you are runnig off the main jet.

If your timing is wrong, you may have to crank the idle up high enough to transition it to the main.

This is a super common problem, and will lead to just overall poor running.

When idling, you should be able to look down the carb and see NOTHING. If you see gasoline dripping down or any wetness, you are running off the main jet, which is NOT correct.

 

[mysavioreigns]

Oh okay I see.

Well, my timing is set at ~13 degrees, and I'll check the carburetor in a minute to see if I see any gas dripping, or anything like that.

Thanks guys

 

[bigcatchdaniel555]

What do your plugs look like. That will give a ballpark estimate where to start too lean white colored or too rich dark balck and sooty. Something that I noticed with one of my crappy autozone 1 bbls was that idling it would run fine like yours and even at partial throttle it would run ok but as soon as I gave it gas the motor would sputter and surge sometimes die in traffic. Ended up being that the carb was jetted too lean shocker being it came from autozone and the plugs were way white.

 

[mysavioreigns]

My plugs are coming out black. I re-jetted them all according to the sticky in the forum. Not sure what that would mean.

I do have a couple other symptoms. I'm really worried now. It didn't do this last Friday, but it did today. I was driving it and it kinda sounded like it ran out of gas, but if I took my foot off the pedal, it was fine. I pushed back down and it was fine. it did this about 4 times today, and once it actually died. I just restarted it in Neutral though, and it worked. I REALLY think the problem is carburetion/Load-O (with the SCV crap). I'm going to try to get a Carter YF quick and get it on there to see if that will clear up the problems.

Another note, this is a poor analogy, but it's worth a shot. it feels occasionally like it is a train. By this, I mean it is like chug..chug..chug..chug faster and faster as I increase in speed. Doesn't do that if I let off the gas.

 

[Bort62]

I think that your idle speed is way off, and so is your base timing.

And, of course, having that LOM on there isnt going to help. What good is a carter YF going to do you? they didnt come with SCV's...

 

[mysavioreigns]

Ah dang...I thought the YF would work with the Load-O. Duh.

Well heck. Like I was telling you Ian, I just can't get this dang DSII down in there (still). I may have to just spend hours and hours this weekend wackin on it to figure it out.

...

I'm not sure how the timing is off - it's reading 13* which I hear is pretty dang close to what it's supposed to be. The idle speed could be wrong, but I wouldn't know how to change it.

 

[Bort62]

Well,

If you are idling on your main circuit, it can throw off what you think your timing is.

If your Idle RPM is too high, it can start to engage your mechanical advance (altho I guess that's not an issue with the load-O.)

What is your idle speed? I really think you have your idle screw in too far.

 

[mysavioreigns]

I guess I'll have to get a tach, I don't have one. I'll see what I can do

 

[addo]

Can you afford one of the digital meters that have a tach? Handy things. OTC 3514 is one worth looking at if the Fluke 88 is too dear; seem to sell around $75.

 

[Eric Rose]

Can you afford one of the digital meters that have a tach? Handy things. OTC 3514 is one worth looking at if the Fluke 88 is too dear; seem to sell around $75.

I took a cheap tach and put alligator clips on the wires. Then I got a spring clamp and put on the back of it. Wire it up with the clips, clamp it somewhere easy to see, and you're good. :idea:

Cable throttle + Carter YF + Duraspark II is the way to go. 8)

 

[Ronbo]

Not to hijack or anything, but we are in the same boat. By going back and forth between idle and checking timing I was able to get mine to run smooth at idle but forget driving it, same symptoms. When I crank it up to around 20 degrees initial I can drive it but that is NOT normal. I have a newer distributor with Pertronix and the H/W 5200. I'm really thinking vacuum leak somewhere :roll: Idle screw is almost all the way backed out too. Not sure why the timing would have to be so high. I checked the h-balancer during reassembly and it was good.

Ron

 

[mysavioreigns]

Hmm, that does sound like some of the same symptoms.

Oh, and I figured out something yesterday. The car died like I said, it felt like it was running out of gas (but i know for a fact it is full). I turned the mixture screw nearly all the way in, and although it didn't sound any different, I didn't have that problem going home from work. Thank goodness too...it's freakin cold and I don't want to be stranded.

 

[bigcatchdaniel555]

When I first installed my 2bbl I was in a rush and didnt put in a good gasket. The car drove fine while i tuned it but one day at a light the car started to stumble and sputter as I drove it got worse stumbling and surging as soon as i let off the pedal to get into my driveway it died. The car would be fine in idle but the mintue i drove it the cra would surge/stumble and die. I took some dish washing soap with water in a spray bottle and sprayed it around the carb base whgile running and say the idle change and an increase in bubbles around an area. Replaced gasket problem fixed.
Good Luck Dan-

 

[addo]

Ronbo - try without the Pertronix and report back...

 

[Ronbo]

The Pertronix worked fine with the old engine so I'm not sure that would be it, cant rule it out either 8) . I'm thinking along the lines like Dan's problem, bad gasket seal somewhere.

The running out of gas feeling prompted me to actually drive the car (scary) to the gas station and fill it up. I ended up driving back in LOW to keep the rpms up so it would run.

 

[Bort62]

Steve, Have you looked down the carb yet to see if you are running on the main ?

 

[mysavioreigns]

Nope, not yet. It's been so dang cold but I should be starting it up tonight or tomorrow morning and I'll see what I get. Does it need to be fully warmed up to see this, or will it be fine just a couple minutes after?