This is the SD22 bottom end. When fitting new bearings, BE SURE you get the bearing set for the three main SD22. The main bearings have the same diameter for the SDxx four cylinder engines.
BUT ...
There seems to be a pervasive mis-cataloging that says 1980-1986 SD22 have 5 mains ... which they do not. The SD22 has only three mains.
The SD23 and SD25 have 5 mains with the same journal diameter as the SD22 but they are about 1/4" narrower.
It seems the workaround to get the right bearing set for your 3 main SD22 is to specify a pre 1980 SD22.
(Block, crank, and center main cap courtesy of G.Guest, bearing set from A.Savage)
Center Main Bearing Cap
Last edited by philip18 years ago, edited 1 time in total.
-Philip Passed 08May2008
My friend, you are missed . . .
1982 Datsun 720KC SD-22
Sealed Power & Clevite do have the correct three main bearing shell kit if ... you ask for any year SD22 that is PRE 1980. Where all cataloging falls apart is in listing POST 1980 SD22 engines as having five mains.
The correct Sealed Power number is 6765M while the Clevite number is MS1118P.
-Philip Passed 08May2008
My friend, you are missed . . .
1982 Datsun 720KC SD-22
There are 10 shells in that box. There are 5 mains in SD23 & SD25 engines. To get the right shells from Clevite, request bearings to fit pre 1980 SD22. The 3 main SD22 shells are quite a bit wider.
Al can tell you more in detail.
Last edited by philip17 years ago, edited 1 time in total.
-Philip Passed 08May2008
My friend, you are missed . . .
1982 Datsun 720KC SD-22
You guys are saying that the SD22 was ONLY fitted with 3 main bearings. But here I have a 1984 SD22 from a 720 truck in my Mazda B2000 '87 truck. It says SD22 on the block and on the valve cover.
What do you say about that?
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