leaky front pushrod middle?
Thread Starter
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Tourer
Joined: Jul 2008
Posts: 276
Likes: 3
From: Canton, MI.
leaky front pushrod middle?
also posted on the tech forum
Hi Guys,
Just put my motor together. Revolution performance 124 stage lll heads 627 redshift cams. roller rockers and stands. quickey pushrods...ect.
I was doing the 3 heat cycles for initial break-in at my buddies house were we built it last Sunday. drove it home for the first time...man it sounded so good...first time on her since the whole process began 3 months ago...little over half way home about 10 miles...oil leak...aagh! rode it home and discovered oil coming from the front exhaust pushrod tube...thought that perhaps I just didn't seat the top o-ring properly...after she cooled down, popped the clip off pulled down the tube reseated the o-ring on the upper tube and into the head and done. cleaned it up and went for a test ride. Dang thing still leaking. noticed it was only leaking from the middle o ring...not the top. went to the dealer and bought 6 new o rings (3 for the intake and 3 for the exhaust) placed them properly top middle base...pumped up the lifters and readjusted the pushrods...test ride...still leaking in the middle! aagh!
Changed out the complete assembly for the exhaust (pushrod, tubes, cap, spring, washer and o rings) and same thing for the intake...swapped them for each other...pumped up the lifters , adjusted the pushrods again...test ride...aagh! same thing...still leaking! how can this be happening?
This leak is not a drip...it won't do it at idle, it does it under load...it just streams down out of the middle exhaust tube and sprays half way up the cylinder...it's a mess.
What do you think I should do/check?
2008 sg
Thanks in advance!
smat
Hi Guys,
Just put my motor together. Revolution performance 124 stage lll heads 627 redshift cams. roller rockers and stands. quickey pushrods...ect.
I was doing the 3 heat cycles for initial break-in at my buddies house were we built it last Sunday. drove it home for the first time...man it sounded so good...first time on her since the whole process began 3 months ago...little over half way home about 10 miles...oil leak...aagh! rode it home and discovered oil coming from the front exhaust pushrod tube...thought that perhaps I just didn't seat the top o-ring properly...after she cooled down, popped the clip off pulled down the tube reseated the o-ring on the upper tube and into the head and done. cleaned it up and went for a test ride. Dang thing still leaking. noticed it was only leaking from the middle o ring...not the top. went to the dealer and bought 6 new o rings (3 for the intake and 3 for the exhaust) placed them properly top middle base...pumped up the lifters and readjusted the pushrods...test ride...still leaking in the middle! aagh!
Changed out the complete assembly for the exhaust (pushrod, tubes, cap, spring, washer and o rings) and same thing for the intake...swapped them for each other...pumped up the lifters , adjusted the pushrods again...test ride...aagh! same thing...still leaking! how can this be happening?
This leak is not a drip...it won't do it at idle, it does it under load...it just streams down out of the middle exhaust tube and sprays half way up the cylinder...it's a mess.
What do you think I should do/check?
2008 sg
Thanks in advance!
smat
Thread Starter
|
Tourer
Joined: Jul 2008
Posts: 276
Likes: 3
From: Canton, MI.
pushrod is clean and clear right through.
so you think removing the top rockers is the first point of attack? What should I be looking for? I/we (my bud) followed the manual step by step...as a matter a fact...I almost put the gasket on backwards which would have blocked the oil passage in/on the front head. and we didn't start drinking until the tools were put away : )
since I dinked around with it all day friday and mothers day today...I just haven't had the time to look at it again...plus the thought of redoing pushrods...AGAIN is about to make me daffy.
Thanks for the replies...
smat
so you think removing the top rockers is the first point of attack? What should I be looking for? I/we (my bud) followed the manual step by step...as a matter a fact...I almost put the gasket on backwards which would have blocked the oil passage in/on the front head. and we didn't start drinking until the tools were put away : )
since I dinked around with it all day friday and mothers day today...I just haven't had the time to look at it again...plus the thought of redoing pushrods...AGAIN is about to make me daffy.
Thanks for the replies...
smat
Stellar HDF Member
Joined: Nov 2008
Posts: 2,432
Likes: 290
From: FL
Are your rockers new? Your breather assembly? Check all the oil passage ways. I've seen rockers that didn't have oil passages drilled correctly which caused exactly what you've described. Start there. Oil flows up the push rods so if it's leaking at the push rod, what's blocking it?
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Seasoned HDF Member
Joined: Mar 2012
Posts: 100,455
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From: Centennial, CO
Are your rockers new? Your breather assembly? Check all the oil passage ways. I've seen rockers that didn't have oil passages drilled correctly which caused exactly what you've described. Start there. Oil flows up the push rods so if it's leaking at the push rod, what's blocking it?
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Thread Starter
|
Tourer
Joined: Jul 2008
Posts: 276
Likes: 3
From: Canton, MI.
reused the rockers just clearanced them for the springs.
the new gasket kit contained the new breather gaskets and mesh and clip.
now if my oil was being blocked going up the pushrod and being forced down the tube, wouldn't my top end be making a lot of racket?
the new gasket kit contained the new breather gaskets and mesh and clip.
now if my oil was being blocked going up the pushrod and being forced down the tube, wouldn't my top end be making a lot of racket?
Are your rockers new? Your breather assembly? Check all the oil passage ways. I've seen rockers that didn't have oil passages drilled correctly which caused exactly what you've described. Start there. Oil flows up the push rods so if it's leaking at the push rod, what's blocking it?