TH700R4 through 4L70E tips and tricks
(→Stake the pump bushing) |
(→Stake the pump bushing (for pre-1987 model year 700R4)) |
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| − | ===Stake the pump bushing (for pre-1987 model year 700R4)=== | + | ===Stake the pump bushing (for pre-1987 model year 700R4 )=== |
Photo shows drill bit location to stake bushing. Pump bushing is removed for this operation. 1/4 inch drill bit works well here. | Photo shows drill bit location to stake bushing. Pump bushing is removed for this operation. 1/4 inch drill bit works well here. | ||
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[[Image:Stakebush.jpg]] | [[Image:Stakebush.jpg]] | ||
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| + | note - the #732 pump (manfactured since October 1986 which includes some early 4L60Es without the 2 piece bellhousing) will have a cast in step which is casted into the pump - the early oil pump had an issue where the pump bushing would walk out where the early oil pumps require the bushing to be staked and/or secured with loctite. Also the #732 pump have an additional oil drain hole which is a connection for the oil transfer tube used with the auxillary valve body - both the early and late oil pumps do not interchange (same with the pre and post-October 1986 transmission casings (the later casings (late 1988 - 1993) have a "St. Louis Gateway" arch casting and the absence of 3 oil pressure fittings). | ||
===Pump rotor clearance check=== | ===Pump rotor clearance check=== | ||
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