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B21F Headbolt specs 200 1980

posted by  walrus3 on  Wed Mar 17 12:15 CST 2004
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last visit: Mon Dec 2 14:20 CST 2013
[RELATED]

Susan's 1980 245 started blowing a lot of coolant out the exhaust. I conclude
that it is a blown headgasket and have purchased an Elring head gasket set on
ebay from a reliable vendor. It arrived yesterday and looks VERY good.
He admonished in an e-message that I should clean the threads before I reinstall
the bolts. Good plan! I always do that on B18/B20/B30 engines and a 7/16"-14 UNC tap works perfectly, always brings up some crud and rarely any metal.

What is the headbolt size for the B21F? Also what are the torque values for
the headbolts? For the pushrod engines it has been sequential at 29, 58 and 65
foot-lb. Is it the same for the OHC B21F? or what?

By the way, if I see any evidence of warpage I plan to have the head shaved
enough to clean it up. Any advice on this?

Many thanks to you experienced guys - I am trying to remain a neophyte on
the newfangled OHC stuff.
--
George Downs, Bartlesville, Oklahoma, Central US






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New B21F Headbolt specs [200][1980]
posted by  walrus3 subscriber  on Wed Mar 17 12:15 CST 2004 >


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