M38 Cdn Carb Help

[Peter Phillips]

Originally Posted by Mike Kelly

I guess this is a original Carter ?

There is a guy on the G503 forum (scoutpilot)) who runs a business, he rebuilds these , he knows more than any of us will ever know. He will freely offer advice.

Is the throttle shaft worn ? A slight slop in the shaft and air will be sucked in. This air leak upsets the idle citcuits.

Also, a inlet manifold air leak ?

Have you seen this https://oldjeepcarbs.com/

Edit. Looks like a YS Carter was fitted. The old gaskets from a NOS kit will have shrunk , might not be sealing ?

Hi Mike,
Original YS carb
Throttle shaft is tight...in fact while I had it running I sprayed carb cleaner around every gasket mating surface and the shaft to hear a change in engine rpm, nothing I could tell.

The new base gasket was definitely garbage and leaked. I used the old thicker gasket with success.

I will look into those references you mentioned, thanks!