Over the years I have collected and saved as many drop gear housing gaskets as possible. They have thickness difference. I also collect idler thrusts. It's getting to the point where my thick thrust are in short supply and thicker gaskets are running out. I suspect like others I have a few drop gear housings with damaged idler gear thrust faces. I even have a couple that were faced with a milling machine to accept added thrust. I have access to a Rottler surface machine. I'm thinking about taking a skim cut off a housing to adjust idler thrust. I'll start with a damaged housing and see how it turns out. Steve (CTR)
OzOAP wrote: ↑Mon Aug 14, 2023 12:25 pm
Engine to Gearbox gaskets also come in a variety of thicknesses. Makes a big difference in straight cut drop gear noise.
Thanks for the heads up - appreciated. I am reinstalling the old and nearly standard 1071 back into the car as the 1275 unit isn't original, but that's got straight cut gears and I wasn't thinking that far ahead
I had always thought of machining the alloy flywheel housing the readdress the wear in the thrust faces whilst getting better gasket face after 50years of engine splits.
I have yet to set up and machine one, I do have a pile of engines/trannys and housings to do. I also have a Turbo housing and two new outer support bearing for it. They are not cheap. Steve (CTR)
Huge thank you to Jason and Graeme - Still have some fiddling to do but a quick check today got me 5 thou clearance, so a single shim change and I should be on the 3 thou I want