Drilling holes in your lifter retainers
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From: Port Tobacco, MD
Drilling holes in your lifter retainers Has anyone drilled 1/4 or 1/2" holes in the lifter retainers to facilitate oil return to the pan? I saw that W2W does it but tried it and the lifter retainer cracked. Is there a special bit to use?
Phil
Phil
Originally Posted by Phil99vette
Has anyone drilled 1/4 or 1/2" holes in the lifter retainers to facilitate oil return to the pan? I saw that W2W does it but tried it and the lifter retainer cracked. Is there a special bit to use?
Phil
Phil
Just start out small and work your way up in size. I put 1/2 holes in my retainers.
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Joined: Nov 2004
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From: Michigan
We use a stepper or uni-bit and let the drill do the work and not apply a lot of force to the drill. When drilling plastic I let the weight of the drill push through the material while guiding it with my hand. This should avoid cracking.
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Brett Foote
I will add this to the list of "to do" when I pull the heads to change the gaskets this winter.
Checklist:
1. Thinner gasket to get better 'squish'
2. Go with head studs to make life easier when heads are pulled in future.
3. Go with header studs for same reason.
4. Drill lifter retainers for better oil return.
Checklist:
1. Thinner gasket to get better 'squish'
2. Go with head studs to make life easier when heads are pulled in future.
3. Go with header studs for same reason.
4. Drill lifter retainers for better oil return.
12 Second Club
Joined: Mar 2005
Posts: 1,498
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From: Corpus Christi
Originally Posted by Kev@WheeltoWheel
We use a stepper or uni-bit and let the drill do the work and not apply a lot of force to the drill. When drilling plastic I let the weight of the drill push through the material while guiding it with my hand. This should avoid cracking.
thanks
fuerzaws6
Originally Posted by GrannySShifting
I dont think its goign to matter much at all unless sustained high rpm motors
