Rebuilt GSR Motor Burns Oil

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GlassHeadlights

GlassHeadlights

West West Yall
Block was machined and assembled my a reputable shop, head was taken apart & inspected then just had the valve seals relaced (honda valve seals)

It seems to burn oil on deceleration. I had it idling the other day for maybe 10 minutes then moved it and as soon as I touched the gas (not high revving, just enough to get it moving in first gear) it let out a fair sized puff of smoke. Also, at the track people notice it puffs when I let off the gas then hit it again.

Under normal daily driving it goes through a liter within 2500 kms or 1500 miles.

I have a friend with a GSR and he got new aftermarket valve guides pressed in, he claims the GSR heads specifically have poor valve guides. My motor had over 300,000 kms or almost 200,000 miles at the time of rebuild.
 
Another note - As for the break in I did about half an hour of breaking in the rings; accelerating then decelerating at various RPMs, but after that I'll admit to beating on it a bit, I'm wondering if that did some damage to the rings possibly... Then again the block was properly measured and sized up by the machine shop.
 
biggest mistake, not breaking in engine properly , good way too waste all that money on engine build and not break it in properly, bet you drain the oil and its chunked full like glitter
 
Nope I've done a couple oil changes and it seems fine, even took apart the first oil filter and no debris. Has tons of power also
 
i have broken-in several built b series and it was always done hard, and on the dyno. and they always lasted a long time, while boosted. i would suspect its in the head. Last time my b16a head was worked, I replaced the valves, valve guides, and seals on the advice of my tuner when the head was at the machine shop.
 
Yeah I could see some play in between the valves and valve guides due to the age of the motor. So I guess even with new valve seals some oil could pass by? I would love to just take the head off and just leave the block in the car, block build alone was $1200
 
Were the rings clocked correctly when it was rebuilt? One every motor I've seen that had valve sealing issues, the car smoked a bunch during cold starts due to oil seeping down.
 
I always think its funny when people say the problem is a bad break in. A hard break in won't hurt a motor. I've always heard a "grandma" break in period is worse than a hard break in period.
 
i had a similar issue with my older integra engine. deceleration sucks in oil from the head past the worn valve guides... its not so much the valve seals not sealing, its the valve guides allowing too much movement and oil into the combustion chamber.
 
99sidude said:
Were the rings clocked correctly when it was rebuilt? One every motor I've seen that had valve sealing issues, the car smoked a bunch during cold starts due to oil seeping down.
Click to expand...

You mean the ring gaps were set apart from each other equally? I would assume so coming from one of the best machine shops from town haha.

Ill try to get a video for you guys!!
 
by clocked, the ring gaps are not seated on top of each other, ie. staggered.

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check your pcv valve. bill rebuilt his whole motor only to figure out it still burnt oil. lol
 
Did a track event today and I had my dad keeping a close eye on the exhaust, he said the only time it burnt oil was when I backed into my spot in the pits. Nothing during full acceleration or deceleration. Maybe the motor is getting better with more mileage on her, like I think I just rolled over 10,000kms or 6300 miles (2 regurarly scheduled oil changes). Ill keep watching but it may not be anything to worry about, it's just a civic...
 
Just a Civic? Just a Civic??! JK

Glad it seems better. Just keep an eye on oil disappearing.
 
Just keep smashing the gas peddle, It will sort itself out lol.

Sometimes the piston to wall clearance is too loose or even if the walls were honed too fine you will burn oil.

I have always broken the engine in on a Dyno, first they tune out the Air to fuel then they smash on the gas.
 
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