86 CJ-7, Weber 38
We have installed a FPR and set the pressure at 3psi.
It runs very rich
can't get it to idle below 800rpm.
None of the jet #'s mentioned here are in his WEBER Performance Jet Kit
I haven't read any mention of the Air Correctors in this post. Are they swapped out very often?
I would suggest you copy, cut& paste, your post and mine and start another thread.
Ask for help on the 38 and I and other can help. This is more of a information location than help post or it will turn into a mess. Use the web adress link on top of page to refer to this POST AS REFERENCE INFORMATION AND START YOUR OWN THREAD.
I would prefer JeepForum Members put what JET CHANGES worked on their JEEP 4.2 / 258 here. MOSTLY for Weber 34/34 and some Weber 32/36. This gives us a good base line and proof so I can talk to Weber and have the correct jets shipped stock.
I am also interested in what Weber is shipping as stock jets Idle and Run on new product. This may alow us to modify what Weber is shipping on the Weber 34.
We can only get this done after some validation from you guys.
YOUR QUESTIONS & ANSWERS:
The Weber 38 are too big for most of the Jeeps unless the engine is highly modified. YOU were silent on your engine mods if any???
Might be able to run jets slightly larger than the 147 Run & 35 Idle jets for the 38. That is a TOTAL GUESS ON MY Part. Please post what jets came stock in the new 38 and what was in the TUNE KIT for 38 IN YOUR NEW POST AND HERE FOR REFERENCE.
The Jet PART NUMBERs for 34, 38, 32/36 are not interchangeable. They still use metric drill bit holes so simillar in that way and the metric drill size in in the part number.
The air corrrection are generaly not changed per my conversation with factory. The 38 operates both Venturies at once, the other Webers are progressive and start with Primary and then open the Secondary.
MAYBE?? ask if you could exchange for a smaller weber unless there is strong reason why. Maybe they/seller made a mistake in recommending the 38.
Ball is back in your court. Need to copy/paste to another Thread, and put more about what you are starting with. I would also like to see some PICs from top front, both sides. The vintage Jeep will have a computer to disable at min and there are some Igniton Upgrade to be done like TEAMRUSH, extra grounds, and those things are discussed and linked above.
This has been the most detailed post I have come across on the net. GOOD JOB!!
Thank you, it needed to be done!