HAWAII88

Had leaky injectors on my 88. Bought a rebuilt set and later found out that the car hesitates badly when you floor it. Later found out that the injectors I bought are 24# and the factory ones are 22#. Could this be causing the problem? Bought another set of rebuilt 22's and they don't look at all like the originals or the 24# replacements..no locking clips. But I tried installing anyway, as the directions say they will fit. Got fuel leaks all over the place at the top of the injectors, some do not move freely in their mount. Should I put the 24# back or find 22's again. Also, there are codes 32 and 36. Not sure if this is related to this but I thought I should put the proper injectors in first before chasing down the codes.

Crash594

When I did my upgrade to the newer style yellow injectors. I ordered a new set of orings. I put the new on the top. On the bottom I used the old ones and pushed them up high out of the lower grove then installed the new one in the grove. The bottom will seal it on the bottom the second one helps to keep the injector from pushing to deep into the intake. This allows a better seal on the top oring since there is no lock.

whalepirot

Short answer: yes, if the above O-rings don't stop the leaks, unless the engine is modified to need more fuel; i.e. larger injectors.

HAWAII88

THanks for the help!

HAWAII88

Thanks!

Dt86

I had been running 24lb in my stock 86 without issue. The computer can manage it.

Tod Stiles

The flow rate has nothing to do with leaking injectors internal or external. I presume you're talking about Bosch III injectors. Leaking at the fuel rail is damaged or not seated O-rings.

I know everybody recommends putting the injectors in the manifold first which can be done but to me it's really fussy and prone to leakage. So I lube all the o-rings install into the fuel rail (don't push all the way in till they bottom-the o-ring can be damaged) and then install the assembly to the manifold. That's the way I do it with very few problems as I said not recommended by others.

Pressurize before installing everything else to check and you should be good to go. For stock L98 22 or 24 will work just fine.

HAWAII88

Thanks so much! Bought a new set of injector seals from NAPA and I could immediately see the seals on the injectors I ordered were a hair too big. Left theoriginal seal from the new injectors as you said and replaced the seal for the fuel rail and the bottom seal. No leaks! Car runs great with the new injectors! YOU ROCK!