[Wanted] 740 throttle body/seal

Flixtez · 2025-03-10T22:52:47+00:00

Hi All, just did a smoke test on my 740 turbo and have a fair amount of smoke coming out from the throttle body where the spring is (similar to picture below...

Major Ledfoot

@Flixtez PS - I've moved your post into [Workshop] [Troubleshooting] since I'm pretty sure you're not gonna want a 25+ year old used rubber seal.

Flixtez

Brad

Major Ledfoot

Thanks that is great to know, I'll pick up one of the seals, and cheers for updating the post for me, happy to rebuild with a seal 🙂

Anthony

@Flixtez you might need two seals (hushers) one for each end of the shaft.
Give the throttle body a thorough clean and a tiny bit of oil on the shaft /bush area.

Anthony

Major Ledfoot

Brilliant, yes your right on the husher and the throttle body seal. Learn something every day, thank you.

jamesinc

@Flixtez I'm pretty sure I have spares of this seal, I'm happy to post you one for $10, let me know if interested and I'll check, but I'm like... 95% sure I have at least one, probably half a dozen.

Flixtez

jamesinc

That would be amazing, i'll private message you

Flixtez

To conclude this thread I want to say a huge thank you to @jamesinc for his help getting the right seal.

There is one seal on the spring side of the throttle body with this part number: 3154432 and a small o ring on the tps which we were able to replace with one from a set of universal sizes, fits snugly against the tps.

No more leaks!

Thanks for all the help

Major Ledfoot

Flixtez 3154432

3514432

Flixtez

Major Ledfoot oh shoot, misread it haha, thats the one