Hi all,
Just fitted a pair of twin 45 webers to my pinto mk2 Escort. They had the standard weber jetting and all i have done is changed the choke sizes down to 34mm. Bought the carbs already bolted onto the manifold and fitted them to the car with a malpassi filter king at just under 3 psi. Throttle linkage is all free and not sticking, but started the car and the revs seemed to be raising and dropping so i couldnt get a decent idle or balance the carbs properly (only by eye through the progression holes). Blipping the throttle the revs were hanging up even with the throttle cable slack. I did wonder if the idle jets were too lean so i swopped from the 55F8s to 55F6s and still exactly the same. So i was thinking that we have an air leak, so sprayed some carb cleaner over the Misab O rings and no difference either. Just taken the carbs off the manifold and noticed that there may be a potential air leak from the O rings, but there are small round machined indents right where the o ring sits and noticeable leak path around them. The misab O rings look ok themselves, just an imprint of where the carb machining is. Has anyone seen this before? Is there a way to seal the carb flush around the area where the indents are or a sealant i can use on the O rings?
I was running some other 45s (which i sold) a while back and went to a 32/36 again, the car was dynod and set up before with the other 45s so its not an ignition or timing issue, just trying to get these newly purchased carbs running right if possible.
Attachment 89089 Attachment 89088 Many thanks, Neil
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