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smoke under compression

Tech Talk for Suzuki owners.

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Posts: 335
Joined: Sat Aug 05, 2006 11:21 pm
Location: Sunshine Coast

smoke under compression

Post by Taff »

Just picked up a new sierra. Engine idles great, revs great, has heaps of power (for a mighty 1.3) and starts fine but under compression braking it seems to puff alot of smoke. Any rough ideas on the smokiness? im assuming the worst and thinking rings are worn? havnt had it long enough yet to tell if its using much oil. It also coughs and splutters a fair bit under compression too, is this due to way too much fuel getting in or something to do with the exhaust? There is a light greyish buildup on the plugs.
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Post by Mike_1324 »

If its sucking oil on roll on, its the valve stem seals, its a n easy fix.

They are probably rock hard.

MF
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Post by joeblow »

or the bores could be very glazed.
lwb 1.6efi,4sp auto,f&r airlockers,dual t/cases.custom coils.builder of ROAD LEGAL custom suzukis...and other stuff.
CAD modelling-TECH drawings-DXF preparation.
http://www.auszookers.com/index.php
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Post by want33s »

I'd say valve stem seals too if it only smokes with NO throttle on.
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Post by Taff »

ill do a compression test on the weekend and see how i go.
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Location: willetton perth

Post by 83jack »

i would say it is valve stem seals as well, if it was smoking on acceleration then it would be rings. a compression test wont really tell you if its the valve seals.
cheers
simon
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