Rome
Samba Member
Joined: June 02, 2004
Photos: 4423
Location: Pearl River, NY
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| Cylinder lapping tool: Toilet plunger |
Posted: Sun Dec 23, 2018 7:51 am Views: 132
Rating: Not rated
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| To lap cylinder top surfaces flat, then lap the tops into cylinder head combustion chambers I made a tool based on a toilet bowl plunger. Inverted the rubber bowl, cut 3 wide "V" out so that the rubber contacts the cylinder walls with friction. Shortened the handle so that I could spin the tool between my palms. Also inserted a 1/4" stud so that I can drive the tool with a variable speed drill, which I use the most. Works very well. I first lap the cylinder on a flat glass mirror tile covered with 220 or 320 wet until I observe that the entire lip surface is uniformly smoothed. Then lap into the head using valve grinding compound. |
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