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Smoking Lude!!

 
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Old 09-01-2007, 02:21 PM
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Icon9 Smoking Lude!!

1st off,, gotta say whatz up 2 all you Lude enthusiasts here. I'm new to the this whole "Lude" thing so I'm extremely stoked that such a valuable resource as this is available for all to use. Ok, here is my dilemna--I just bought a '90 SI with a rebuilt 2.1L M21A1 engine with less than 5k. Just put lowering kit, new struts, and new wheels/tires on it. Was running great for 1st couple weeks or so. Then lately I've been noticing puffs of white smoke coming out the exhaust and the 'smell' of something burning (oil I think???). Usually happens when I downshift (when RPM's spike). So I had it checked out and was told by the tech that since it smokes on both accel and decel that its probably two things: both the valve seals AND the piston rings. Then, to top it off, he mentions that dreadful word that anyone who is not a mechanic loathes hearing: REBUILD!!! Does this sound like its truly time for a rebuild or new engine? Or is it something completely different? PS--- When I asked why they didn't do a compression check, the tech said that it wouldn't show anything more than the smoking gun (aka exhaust) already did??!! Need a lil' help from you Luders who know yer stuff! Much THANX!
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Old 09-01-2007, 02:26 PM
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well if the motor has been rebuilt within the last 5k miles then it shouldn't need it again... unless it wasn't broken in properly, witch could make the piston rings go bad prematurely but i dont think that prematurely, who rebuilt the motor in the first place?
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Old 09-01-2007, 02:37 PM
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damn that was quik bro! Well, the guy I bought it from owns a shop with his father. His father buys and restores used Hondas and this one happened to be one of them. When I talked to him about the problem, he told me that it would still need to be broken in and that would take few thousand miles or so. I really don't know enough about vehicles to be sure but it shouldn't be smoking like this EVER, should it? I haven't run it hard since I've owned it-- I've only driven it 500+ miles since the purchase. In checking most of the threads posted, been noticing that a compression check is advised quite often to those in similar situations. Why the tech said that a compression check would be unnecessary seems is a bit wacky-- or is he right? Also, I checked the oil after a few days of buying it and it barely registered on dipstick. Ending up adding 2 qts to get level right!
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Old 09-01-2007, 03:47 PM
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flux capasitor is shot and now you need to go back to 1988 to get that fixed:tape2:
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Old 09-01-2007, 04:07 PM
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haha uncle... ask the guy you bought it from reworked the head and all that good stuff when he built the motor, because the valve seals might need to be replaced
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Old 09-01-2007, 06:17 PM
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Uncle Buck, u almost had me there.....actually, not really. Now back 2 the present (haha), that doesn't sound good What do valve seals consist of in terms of difficulty to replace? And does that mean that there are '16' seals? (DOHC 16 valve!?) Is this something that has 2 be done by a mechanic or can I attempt it via Chiltons or Helms manual?
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Old 09-01-2007, 09:15 PM
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If you are comfortable with opening up the head, and working on it, you can do it, but you will need the right tools to get the job done.

If you are not comfortable with opening the head, the pay a mechanic to do it, but it is not going to be cheap.
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