Tech Tip
We have heard people complain that upon installing a new TR6 oil pump, they were unable to build oil pressure. One possible cause is the installation procedure itself. The oil pump drive shaft has a tongue which must be aligned with a slot in the drive from the camshaft when the pump is bolted in place. Because the drive shaft is pressed into the oil pump gear, a misaligned drive will cause the drive shaft to be pushed further into its gear. The oil pump seats properly against its housing, but the now shortened shaft will not engage its drive from the cam.
The proper distance from the oil pump housing to the base of the tongue is 110mm. If your drive shaft is too short, simply pull it out of the housing (being careful not to bend or scratch the shaft) until the proper dimension is achieved. The manufacturer tells us that this arrangement is constructed so that the drive shaft will spin in the gear if the gear seizes, rather than tear up the drive from the camshaft.
The best way to minimize headaches is to insure that the oil pump drive shaft and its cam drive are in perfect alignment before bolting down the oil pump.
Working on automobiles is inherently dangerous. Moss Motors, Ltd. is not liable for injury or damage due to incorrect installation or use of their products. All products are sold with the understanding that the safe and proper installation and use of the products is the customer’s responsibility. Follow factory workshop manual procedures and instructions, but use current shop safety standards and common sense. Some tasks will require professional advice or services which Moss Motors cannot provide.Email (for Moss Tech help):
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