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Registered
Join Date: May 2008
Location: Point Roberts, WA and Vancouver BC
Posts: 535
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No oil in bores on new engine?
Apologies if this has been discussed-I did look first!
I keep seeing engine building 'experts' saying that it is preferable to leave the pistons and bores dry when assembling an engine since this ensures the rings bed in quickly. My first reaction was -Yes I bet it does!! But it seems quite a common practice now. I have always ensured lots of oil in the bores on engines I have overhauled but have yet to do a Porsche engine. What do the experts here say?
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Too many cars, not enough moolah... |
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07-19-2011, 06:45 PM
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Join Date: May 2005
Location: Loxahatchee, florida
Posts: 2,894
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So have i including the porsche engines. Never heard of assmbling them dry. I also never had a problem with the rings seating.
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88 turbo Guards red Targa slant nose, and yes I am a horsepower junkie, 3.4liter,7.5 to 1 JE pistons, Adjustable WUR, Imagine fuel head, 1 bar waste gate headers,allthe cis toys. Now apart to become the next EFI monster. fabbing my own intake, headers Individual throttle bodies, MS-3, pauter rods, Xtreme twin plugged heads, gt-2 evo cams cop's. 2019 Silverado 6.2L |
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07-19-2011, 07:18 PM
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Join Date: Jun 2003
Location: Camarillo, Ca.
Posts: 2,418
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Lightly oil cylinders and very little oil in the ring lands.
This techinque gives you little to no snoke on startup and quick ring seating.
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Aaron.  F.S. 1965 Solex engine w carbs/cleanerBurnham Performance https://www.instagram.com/burnhamperformance/ |
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07-20-2011, 11:06 AM
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Join Date: May 2003
Posts: 3,346
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I followed the instructions that came with my ring package. They advised using a light coating of WD-40 in the bores. That's what I did with my Alusil cylinders and new rings. Seems to have worked out fine.
-Andy
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72 Carrera RS replica, Spec 911 racer |
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07-20-2011, 11:53 AM
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