TR2/3/3A Thrust washer gap

[sp53]

I finally got back to the oil pan gasket and got looking around for whatever. I noticed one thrust would move and the other did not. This is probably because the engine is jacket up. Anyways, I used the old thrust washers on this engine because I am afraid of aftermarket parts. Are thrust washers something that is a potential problem on a tr3 engine? I think when I let the engine down the crank shaft will go back to a floating position.

I am now just looking into the gap on thrust washers for a tr3 because I know so little about them, but my hope is the engine is built strongly in an old style and a little more play in the thrust washers should not matter……..

I made the gasket out of a 3mm rubber sheet from across the pond.



Thanks for looking I am concerned about the rubber gasket; time will tell

steve

 

[CJD]

Nice gasket! I would be inclined to install that one to the pan dry, with only a touch of sealant at the front and rear bearing cap splits.

The engine sits in the car tilted to the rear. This means when it is running, the crank leans against the forward thrust washer...so all the way to the rear-most position. When you press the clutch, the pressure from the clutch pushes the crank against the rear thrust washer, so fully forward.

I might accept a few thousandths crank motion for and aft, above the spec. If it gets to be too much play, then the constant for and aft motion of the crank during use will start to put stress on the rod bearings, and could affect clutch operation and/or rubbing of the front crank sprocket inside the cam chain cover. Since you pan is off, you can check for most of these potential problems, and decide if the play is an issue or not.

 

[sp53]

I never thought about not using any sealer. I like the idea. I bought the large permatex non-hardening, but yeh sure would be a lot less messy.

The one problem I potentially see with the gasket is I punched the holes into it with a ¼ punch that leaves a slightly under 5/16 hole to keep the holes closed up as much as I could. I am thinking I should have given more wiggle room for the bolt. Without using gasket sealer, doing a dry run without the sealer might be the way to go.

I guess I could pull the main cap off and measure and check the gap of the trust washers. Overthinking is typical for me when I start getting too close to finishing something I started. When I get to the other side of this one, I will be happier…….

Thank you Steve

 

[mastaphixa]

Steve, have you considered measuring your crankshaft float? That would answer your thrust washer clearance questions without having to remove a bearing cap.
Steve Baker