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Lots of smoke.

Tech Talk for Suzuki owners.

Moderators: lay80n, sierrajim

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Posts: 143
Joined: Tue Feb 14, 2006 9:30 am
Location: Northern Sydney.

Lots of smoke.

Post by ZOOK92 »

Morning all,
I have a '92 Sierra that use to smoke a little at start up and when flooring it, but yesterday it started to feel it was running on 3 cylinders. I cleaned the plugs ( and they were stuffed, no inslation at all around the electrode) and it drove home fine. This morning it started running rough again, same place, which is a very steep down hill, but it was also blowing a LOT of smoke. On the level again, it ran rough for a bit, but then ran fine. it does use quite a bit of oil, so do i presume it may be something quite bad, maybe the valve stems oiling the plugs up?
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OILY?

Post by want33s »

I would agree with your diagnosis. Valve stem seals. If you park on a steep incline the oil in the rocker cover pools at one end above the valve stem seal. Your seals are old and hard and are letting oil down the valve stem into cylinder, causing it to misfire. Valve stem seals are cheap and if your valves seal ok you can replace stem seals without removing the head. OR don't park on hills.
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Post by ZOOK92 »

Thanks for that. I had a bad feeling it may have been something a little more terminal!
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Post by v840 »

Sounds like stem seals but I would get a compression check done aswell. No point replacing the vs seals if your rings are cactus.
|^^^^^^^^^^^^^^| ||
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Valve stem seals

Post by Impulsive »

All is not lost though. You can fill the combustion chamber with compressed air (using a spark plug hole adapter) and hold your valves up that way to replace them. That way you don't have to remove your head... unless you want to do so to freshen up the head gasket.

Regards,

Adam
1998 Vitara Hard Top 2.0 EFI
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Post by moose »

does it make any noise ??
i.e knocking under load ??
might of cracked a piston !!! :?
MissForbyNoob wrote:
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Post by ZOOK92 »

Moose,
the engine is still quiet, and does not make any horrid noises, bar a lilltle rattle that disappears when it has warmed up.
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Post by ronoor »

make sure its bang on the dip stick a little over the top mark they will blow smoke . cheers ron
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Post by ZOOK92 »

Ronoor,
it is actually using oil, but i do make sure it is a little under MAX. It has been getting worse over the last two weks or so, but it will be fixed this weekend. Gee's you should see it going down hill, because the people behind me can't!
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