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Summary of Contents for Brett Dempsey Engineering TH400
- Page 1 Nissan ZD30/TD42 Turbo400 automatic transmission adapter kit...
- Page 2 Note: some late TH400 pumps are only drilled for 6 bolts – do not be concerned if you have this type of TH400 pump, 6 bolts torqued properly are more than enough to handle the loads.
- Page 3 Bellhousing Adapter Because of the way the TH400 is cast, it has the potential to leak fluid through the pump bolt holes; GM used plastic washers under the bolt heads as gaskets to prevent this. The BDE bellhousing adapter has o-rings engineered to seal both the bolt shank and the adapter to the pump, thereby preventing leaks entirely.
- Page 4 • When all four bolts are installed and snug, verify that none of the back o-rings have become dislodged, preventing the adapter from sitting flat on the pump surface. Figure 5 – Machined housing and pump face Figure 6 – Adapter installed, torque sequence •...
- Page 5 Figure 8 – Short bolt torque sequence • Grease the entire shank and under- head washer surface of the four (4) 2 ½” long bolts and thread into positions 5 - 8 (Figure 7) through the adapter o-rings and into the transmission threads.