Installing the Tri Power, hooked up the carbs today!

[60s Refugee]

To drive to the car show this morning I removeed the fuel lines to A&C and ubhooked the linkage. I had a rough time getting them set yesterday. Started getting raw gas out the vent on top of the float bowl on 'A' during high revs. I thought I had the float licked. So when I get to the show tomorrow I will have to hook it all back up for the sake of the show. I just won't be drivin' in the crusin' part.

I'll stop by Sears and get a new vac gauge. I can't even get the single carb to run right with the outers shut off and unhooked. I'm probably getting vac through one or both of them. I just might have to put the two blocking plates back in for a while.

Harry

 

[Jmonty]

Not to hijack this thread, but how is the sealing done on the bottom of the intake where it meets the log?

I could see that as being a potential trouble spot for vacuum leaks & would be enough to drive some folks nuts trying to find it. I'm not saying that's the problem, just curious as to how it is accomplished.

 

[Jett's_Pony]

As usual this thread is showing that there is a million different ways to make these cars run. We run all the carbs with an idle circut and others block them off. Both ways obviously work.
For the last question the stock Offy manifold seals with an o-ring at each opening. The later style lays the o-ring flat, the early style the o-ring is bent around the log. On Jessica's car we have a D-7 head so the log was ground down fo make a flat sealing surface and we used the later style Offy manifold.
We used the 1100s because they were cheap and available, the holleys are becoming a bit of a collectors item so they were quite a bit more money when we were doing this. With the manual choke version they fit fine. With an automatic choke they do not fit unless you remove all the choke pieces. The majority of both the holleys and the 1100s are old and worn out so you have to look for good cores. Either way it is a chore to get it all sorted to run right, but the first time everything lines up and you nail the throttle and feel the outer carbs kick in it is all worth it. The new Webers may be the way to go.
If anyone wants to see Jessica's car, she will be at the Mustangs in the Park show on the 22nd of June in Woodley Park near Los Angeles.
Greg(Jett's Dad)

 

[64falconsix]

harry you may have a bad float or seat also i'm not sure about the holley carbs but i've read a few threads about useing a fuel pressure regulator. i have triple webers with an adjustable fuel pressure regulator on my 200. i was told that anything over 3 1/2 p.s.i. would cause them to to flood the fuel bowl. i'll know how it works next weekend i'll be starting the new engine for the first time.

charlie

 

[jahearne]

http://cgi.ebay.com/ebaymotors/Used-Hol ... 226302264&

Here's a cheap glass bowl for sale

 

[60s Refugee]

Thanks for the heads up. I will watch that auction.

Today was the big car show in Marion. Due to impending storm, only 225 cars entered. I was the only six cylinder tri power.

I managed to get the idle to a controlable level, about 1500 rpm. When I arrived at the show I noticed that the top of the Alpha carb float bowl was wet with gas. After letting it cool off I grabbed a carb expert I knew at the show and we looked at it. It looked fine until I revved up past 3000 and fuel started shooting out the vent on top of the bowl. Either the float is sticking or the pressure is too high for the needle to hold it. Either way, I had to remove the tripple fuel line, hook up the center carb, unhook the linkage, and enjoy the rest of the cruise in. I didn't do any cruisin' though. I still had about 1500 idle so I drove home after the show. Not running very well.

I'm obviously having the common 1904 Holley float problem. I also might be sucking air, but I'm not sure. I am sure I'm getting too much fuel.

In answer to the other question, the carb bases are perfectly sealed. When this log was modified the builder expertly welded a plate to the top of the log, filled it in well, smoothed it out, to the point it looks cast in! Then the two outer carb bases were cut from the center section and securely sealed and bolted. I am absolutely certain the manifold isn't leaking.

Also. when I block off the outer carbs with a plate I can get the center carb to idle perfectly! It must be a carb issue.

I'll remove those carbs tomorrow and use my brand new vac gauge on the center carb. Then I'll get into the 1904 that's leaking and see if I can get the float adjusted. The Autolite doesn't seem to have a fuel pressure issue. I may wind up using three of them instead, unless I get those webers!

Harry

 

[inline300]

....I also might be sucking air, .....
Also. when I block off the outer carbs with a plate I can get the center carb to idle perfectly! It must be a carb issue.

Think you answered your own question.

 

[inline300]

Did you figure it out? Feel like I was watching a mini series but the final episode was cancelled.

 

[60s Refugee]

Still Tweeking it! I plan to do a new post today. It's better, but I have been way to busy with two '66 Chevy off frame restorations we just started plus two car shows so progress has been slower.

Watch for the neew post!

Harry