Carburetors in general, Holley's in particular; AKA Carb Tech

[Lindel]

If you're talking about the flat metal at the top of the carb, that's the choke. This time of year it should be nearly closed when you start the engine, and slowly open as the engine warms up. If it's not opening up, then that could be part of your problem, not enough air available to the engine.

[AMC4ME]

Choke valve is open and I believe that a part of my problem might be a bad fuel pump. I have to give a few shots of gas to the carb before initial start. I'm going to change out the fuel pump and see what happends. I called a local carb guy and thinks this would be my problem. Keeping my fingers crossed!

[AMC4ME]

Maybe my fuel filter needs to be replaced.... I'll try that first.

[jeepbob]

I just bought a Generic bolt on holley with no external float adjustment tossed it on and just adjusted the idle jets and speeds (high and low speed Idle) and it was good to go. I do run a pressure regulator at 3.5 lbs.

[AMC4ME]

I replaced both fuel pump and filter. Better initial starts but still only moves to 25mph with a high rpm. I checked around the carb and all hoses seem to be intact. The manifold (vent?) hose behind the carb has been plugged. Replace carb? Bad timing? Bah...........

[AMC4ME]

What are your guys thought on maybe a bad transmission modulator? When the Jeep wants to switch to second gear it hesitates (briefly) as if it does not know what to do. Engine idle is good. I'm still wondering if maybe the missing down pipe from exhaust manifold is still in play.

[Lindel]

I was thinking along those lines, not modulator specifically, but tranny related.

I don't thing your exhaust is an engine issue at this point.

[AMC4ME]

I've been glancing thru the Haines manual lately and I'm trying to come up with different solutions to the problem. This not the original engine ( I believe) and it was not quite honed in. Now I'm guessing on throttle control linkage with the tranny. Perhaps the linkage has too much slack?.

Sorry all ----- I really don't mean to clutter up this forum with my particular Jeep issue. I don't have any one to physicaly help me on my Jeep and I'm learning as I go.

[Lindel]

Don't sweat it, that's what we're here for.

[Peter Matusov]

QJet on a BUick 350

Thanks for the link to the article on the Quadrajet.

I've swapped the QJet that came with the 72 Buick 350 (that was definitely leaning out close to WOT) with a known-good Chevy QJet. It idles well, runs well, and I should be all over it - but starting the truck became a matter of probability and full battery charge! One tap of the foot in the inopportune moment, and it'll flood the engine.

I wish I could make one good carb out of these two...

[Lindel]

Welcome back Peter! Good to see you're still around!

[Peter Matusov]

Thanks Lindel,

I never went away - been lurking every now and then.
My son took the long Rangie away, and I never quite got used to driving a Volvo to work; the Disco on 32s takes just as much gas to drive to work as the Wagoneer, but the Wag rides much nicer. So...
... 'soon as I get back from the sandbox, I'll devote some time to get back from a FSJ owner to an FSJ daily driver again.

[OutdoorNM]

Holly for 1986 Cherokee?

Hi Folks,

I just acquired a 1986 Cherokee 160K with auto trans. When I couldn't get the vehicle started I took it to the local jeep(dealer) shop. They wanted $1000- for a rebuilt carb(no labor, just the carb)..... I eventually got a local garage to slap on a carb from the junk yard and do a bunch of other stuff for $600- It is now slow to start up, but once warmed up runs like a champ. I'm new to Jeeps, but have heard the carburetors can give you a lot of problems. I saw an add for 'remanufactured' Holly Carbs for my vehicle for about $525- which can be ordered thru' Auto Zone in 2 days.

I was wondering if I should consider the Reman' Holly should I have trouble with my existing unit? Your advice would be appreciated!

Lincoln

[Lindel]

Take a look at www.summitracing.com or www.jegs.com for Holley carbs, and you should be able to get a remanufactured carb for $300 at the most. I'd start looking elsewhere to get your parts.

You'd be money ahead to pick up a shop manual of some kind and do the work yourself.

[OutdoorNM]

Thanks, Lindel

I will check out those sites. I plan on doing a lot of my own rebuilding, but I was desperate to get the jeep functional.

Lincoln