32/36 Weber Tuning Issues

[Des]

Hey Hey,

 

I have a 32/36 weber on my Pajero. SAeeing as some folk here like these carbies i'll ask here.It wont idle properly. Idles at 200 - 300rpm.

 

No vac leaks i can find.

Drives well, cruises well.

Dies when i add start ya bastard.

Runs better when i cover fuel bowl vents but still not 100%.

New kit put through, new needle and seat.

To get it to idle i have turn the mixture screw out nearly 10 turns and crack the primary butterfly which is very wrong. Idles shit aswell.

 

I'm not expecting a miracle answer but suggestions.

[Evan G]

i found out what the 3 ports on the 32/36dgav do.

 

1st on the top LHS, is where the breather connects to

 

2nd on bottom lhs is the fuel return

 

3rd on RHS is the fuel in

[GJM85]

It sounds like its running to lean. If you want i'd be happy to swap my recoed 38/38 synchronous for your 32/36 progressive. I think its just too big for my 5k as the weber book my dad has says its generically jetted to suite a 2.5L and the inner venturis are not interchangable. I bought it through recarb in september.

We've fiddled with the jet sizes and it still doesn't like to play ball.

Edited November 7, 2011 by GJM85

[Des]

Does it have the same bolt pattern as a 32/36 ? and whats it jetted for ?

 

If i do swap this one will come with jets to suit a 4ac so it should run ok on a 5k.

[Ady]

sounds like it's rediculously rich to me.

[Des]

sounds like it's rediculously rich to me.

Fuel pressure just popped in my head, I'm running the 32/36 straight off the mechanical fuel pump. The Paj book says they can run up to 13psi so i might drop a regulator in tomorrow arvo and wind it down to 3 or 4 psi.

Edited November 7, 2011 by AE70

[Evan G]

whats the fuel bowl level like? you running a return line off the carby?

 

 

if it was over pressurizing wouldnt it all the excess fuel be bypassed into the return?

[Des]

whats the fuel bowl level like? you running a return line off the carby?

 

 

if it was over pressurizing wouldn't it all the excess fuel be bypassed into the return?

Running a return, Dunno but its worth a try otherwise I'm going to burn it.

[Evan G]

stick a 4k in it :P

[Des]

stick a 4k in it :P

A mate has an injected 304 V8 cheap :hmm: Would be a tight fit and the Paj 5 speed would die on start up.

 

Will have another tinker tomorrow.

[GJM85]

Does it have the same bolt pattern as a 32/36 ? and whats it jetted for ?

 

If i do swap this one will come with jets to suit a 4ac so it should run ok on a 5k.

 

It's the same as a 32/36 but it has no choke, synchonised throttles and it came jetted to suit a 2.5 litre. All I've changed is the main jets from 145 to 125. But I can change them back.

[Des]

It's the same as a 32/36 but it has no choke, synchonised throttles and it came jetted to suit a 2.5 litre. All I've changed is the main jets from 145 to 125. But I can change them back.

Hmmm I'll have a tinker tomorrow and see what happens. Pm me your number and I'll give you a ring tomorrow Gav.

[Trev]

sounds like it's rediculously rich to me.

 

+1

[Des]

+1

When i put the 4ac suitable jets back in and try its the same. Doesn't idle but drives OK. Going to try the reg tomorrow. Trev tune it for me!

[Trev]

Dunno what pressure mine is getting as my fuel regulator and return is before the carb so I am using a single fuel line on the carby, also check the timing on it when you are playing around with it next.