Smelly exaust!

[zeiss150]

Hey guys,

Ok Z problem # 95 (god I love my Z) ! What would cause my exause to smell really "exausty" (new word). the engine is totally rebuilt. new rings all new bearings the head was totally redone 3 angle valve job new seats the works. I think I might have a leak in my SU's on the butterfly valve bushings. So what could be making my exaust smell so bad??? help:alien:

[frank13]

Just means it running! . What does it smell like? Does it burn your eyes and throat. Or just sorta make you wanna throw up? You state that you rebuilt the engine and head and all that, but no mention about you induction, tune up parts or the like. What year/model? Like the senior members would say the more info given the better the chances someone will respond with help! :devious:

[zeiss150]

Sorry for the lacke of info, I didn't want to leave a huge thread. so here is all the info. All smog "stuff" is gone no smog pump, I have a header a 6-2 2into1 21/2 inch exaust pipe and dinomax flowmaster muffler. I have a stock intake manifold and original su carbs. By the way its a 72 240 and i am running a L24. The head is an E-88. The su's have a leak in the butterfly valve bushing (as far as I can tell). I get about 22 mph (which I think is low) and im running an 81 5 speed. I dont think its been killing brain cells or anything but it just stinks. there isnt any smoke or anything. could more carb tunning be the problem? I know the valves are set just right. From what people are saying zcars just stink? Would the smog pump fix it? or is that a horse power zapper? well if you need any more info please let me know.

Zeiss-

[2ManyZs]

Carb tuning is probably your biggest issue. Once you have them rebuilt/repaired and properly tuned, if you still have the problem, you should probably investigate the tune up, timing, plug choice.

You won't be able to tell anything if you have any leaks in the carbs like you describe. Best thing to do is get a rebuild kit from ZTherapy or if you can afford them, send them in as cores for their rebuilt carbs.

[zeiss150]

Update, NO MORE SMELL!!! That's right i fixed it. Thanks to the Ztherapy's tune up video. If your running SU's I can't recomend it enough. It turns out that if there not tuned right your get really smelly exaust:stupid: Well there it is. thanks for everyone that posted.

Matt-