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gh914 gh914 is offline
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Join Date: Jul 2013
Location: Pemberville, Ohio
Posts: 20
66 mm Crankshaft soft plugs

I am working on building my first six. I have been building four cylinders for years. My question is on the soft plugs for the 66 mm crankshafts. I have a real nice std/std counterweighted crank I plan to use in a 2.0 liter engine.

I believe I count a total of 8 soft plugs in the crank.

Two inside the flywheel flange that are drilled straight in
One straight into #2 main bearing journal in line with one of them from behind the flywheel
One on an angle through #2 rod journal
One on an angle through #3 rod journal
One on an angle though #4 rod journal
One straight through #6 main journal in line with the hole through #7 main journal.
One straight into the back end of the crank

Does this quantity look right? Do all of them typically get removed for cleaning?

I am curious on the soft plugs that are drilled straight into #2 main and #6 main journals. How do you get into those to remove the soft plugs and then tap them for the threaded plugs?

Thanks
Old 10-23-2023, 09:58 AM
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