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Hello everyone,
A while back I did a vacuum leak test on my ’93 civic using a homemade smoke pump. By far the largest amount of smoke came through the side of the throttle body, and although I can’t see exactly, I suspect it’s from the throttle shaft.
Is it possible to repair the seal around the throttle shaft? I’d prefer not to have to replace the entire throttle body – looks like the OE part is not even sold anymore.
Let me know if anyone has any ideas about this. Thanks.
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take the throttle shaft by the end and check for play. If you feel the play… it is worn and I doubt you will be able to find bushing/repair kit for it.
Then you will have to look for a throttle body.
I don’t know the amount of smoke you see there but a little amount can be seen as it is an expose rotating part. If you can use brake cleaner and see a RPM change when the engine is idling, now it is more serious.
Spray it around the gasket and then work you way up.
Hope that help
K
With vacume leaks i usually use some starting fluid, and give a small stray to the area i think has the leak at, and if the rpm changes at all, its enough to effect how it runs…not the safest way! SO KEEP A FIRE EXTENGUISHER AROUND…
thanks for the suggestions. I’ve seen Eric’s video about spraying carb cleaner, haven’t got the nerve to try it yet. Might give it a try once I get the fire extinguisher handy.
If you have excessive leakage at the throttle shaft then the only fix is to replace it unfortunately. There is no other repair that I know of.
Good luck and keep us posted.
Which motor do you have? There are lots of throttle bodies on Craigslist in my area. Even have an extra one for a 95 Civic. Going to sell it on Craigslist when I get around to pulling it off.
You can get them at wrecking yards, but they will want top dollar for them (at least in my area).
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