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VCCA Home Forums TECHNICAL - 1945 AND NEWER 1949-1954 What weight oil to use on rebuildt tappets

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What weight oil to use on rebuildt tappets #464512 12/13/21 03:32 PM
Joined: Oct 2021 Posts: 80 Kentucky ChetC OP Shade Tree Mechanic
OP ChetC Shade Tree Mechanic Joined: Oct 2021 Posts: 80 Kentucky	I've taken apart many hydraulic tappets but the ones in my 1951 chevy 235 engine are unique in that the parts are very small. Tiny little spring with about a 1/4" diameter plate. Since I've gone to this much trouble I would like to do what the directions say and that is to use10 weight oil when assembling. Problem is, no one has 10 weight oil. Would 10W30 work OK. What have you guys used.

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Re: What weight oil to use on rebuildt tappets ChetC #464520 12/13/21 07:16 PM
Joined: Jan 2006 Posts: 7,046 Likes: 107 South Central Kansas Tiny Hall Monitor ChatMaster - 7,000
Tiny Hall Monitor ChatMaster - 7,000 Joined: Jan 2006 Posts: 7,046 Likes: 107 South Central Kansas	Everyone has 10 weight. 10W30 is 10 weight oil with high temp additives. The lifters will end up with whatever oil you're using in your engine in them anyway. I use 15W40 so my lifters have 15W40 in them. Last edited by Tiny; 12/13/21 07:19 PM. VCCA Member 43216 Save a life, adopt a senior shelter pet. 1938 HB Business Coupe 1953 210 Sedan

Re: What weight oil to use on rebuildt tappets ChetC #464543 12/13/21 11:49 PM
Joined: Jan 2002 Posts: 30,701 Likes: 141 West Allis,Wi. Chev Nut ChatMaster - 25,000
Chev Nut ChatMaster - 25,000 Joined: Jan 2002 Posts: 30,701 Likes: 141 West Allis,Wi.	Or you could use 5W-30. Gene Schneider

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