The MGB oil pan reinforcement plates will stop oil leakage from the front and rear of your 5 main bearing oil pan.
The front and rear are more susceptible to leaks for two reasons:
The oil returns from the front and rear main bearings are just inside the pan so there is a constant flow of oil in these spots.
The rear part of the pan below the rear main bearing has only a thin part of the pan pressing on an equally thin section of oil pan gasket. This compounds the problem.
Add to that the very thin sheet metal of the oil pan itself often leads to distortion especially if the mounting bolts are over tightened. The small ribs between the bolt holes do not transmit the pressure of the bolts to the surface between the bolt holes leaving gaps for oil to seep through.
The MGB oil pan reinforcement plates are 3/16” steel plates fabricated to fit on the front and rear of the oil pan.
The attached pictures show how they work.
The first picture shows the rear of the oil pan. Notice that in the center of the mating flange that the width of the flange narrows considerably. This is due to a drain hole from the rear main bearing cap. Also notice that the raised ribs between the other bolt holes is missing from this center section.
The second picture shows a surface ground strap place on the flange between the center bolt holes. The strap is ground to be the same height as the ribs are above the base surface of the flange.
The third picture shows surface ground circular spacers placed over the bolt hole areas. Ditto on the height.
The fourth picture shows the 3/16″ steel plate placed over the flange. The plate touches the strap, the spacers and the ribs.
The front plate is attached in the same way except there is no strap as the front of the oil pan has ribs between each bolt hole.
When the bolts are installed and tightened the plates apply equal pressure to the entire front and rear of the oil pan.
Longer than stock grade eight bolts and new washers/lock washers are supplied with the plates.
Detailed installation instructions are included.
You may visit my website www.britcarfixes.com to purchase and pay via Paypal.
You may also send me a check. My address is John Hewell, 300 S College St, Walhalla,SC 29691.
You may also pay by Paypal. My Paypal account is: firstname.lastname@example.org. The third character is an underline or underscore. If you send me your email address, I can send you a Paypal invoice.