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Discussion Starter · #1 · (Edited)
I found a co-bearings option for when you can’t buy a new crankshaft. The co-bearings are from a Nissan car motor and come in sizes STD 010 020 030 040. They fit right for the crankshaft but you will have to work a little the co-bearings to fit right the connecting rod (picture down)
Wood Measuring instrument Scale Hardwood Audio equipment


Remember to rectify the crankshaft with a professional to match correctly the crankshaft and the bearings sizes.
I used moresa co-bearings brand but there are more brand options

NISSAN: 4 cil in line
Years:81-88
Motor:
—E15, E15S (1.5L) SOHC 8 valve (1487 cc)
310, Pulsar, Sentra, Tsuru I
—E15T (1.5L) Turbo SOHC 8 valve
(1487 cc)
Pulsar, Tsuru I
—E16 (1.6L) SOHC 8 valve (1597 cc)
Pulsar, Sentra, Tsuru II, Tsuru III
—E16I, E16S (1.6L) SOHC 8 valve (1597 cc)
310, Pulsar, Sentra, , Tsuru II, Tsuru III

Standard Shaft diameter:
—39.954/39.975mm
—1.573/1.574in
Housing bore:
—43.000/43.012mm
—1.693/1.693in
Width bearing:
—16.99mm 0.669in
Max wall thickness:
—1.501mm 0.0591in
Oil clearance:
—0.0203/0.0838mm 0.0008/0.0033in
MORESA PART NUMBER:
—4B1590: STD 010 020 030 040
 
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