1936 Camshaft thrust washer

barrysweet52

The Motors Auto repair manual says - a service thrust washer is available that can be split and installed without removing the camshaft. Does anyone know what this washer is made out of and where the split is ? Or are they talking about the same phenolic washer that Dale Cooper sells and you have to cut and twist it to fit. A well known old local engine business fitted a 1/32 thick steel washer that can revolve with the camshaft and I have never been happy about it. So a washer that can be split sounds good. Thanks for any replies. Barry

lostmind

I made mine from brass and cut an angled slot on it. Pull the cam forward after you remove the distributor, twist it enough to slip around the cam. I did this about 35 years ago , so that's all the details I remember.

[Deleted User]

Someone is making the slotted brass one, I have one in stock I think I got from Dr. Doug Wildrick .Might check with them,
Roger

PAULARGETYPE

I HAVE SOME THAT ARE BAKALITE YOU HAVE TO SPLIT ON A ANGLE LIKE A 10:00 CUT ON A PIE

Geoff

The correct thickness is 1/16"

barrysweet52

Thanks everyone. I will probably have to remove the oil pump as well as the distrib. Thanks, Barry

Geoff

Barry, another consideration is the state of wear of the cams and followers. If the thrust washer is missing, and has been for some time, there may be a groove worn in the cam follower. If you move the cam forward, you are going to encounter problems with the cam riding on a new surface of the lifter, which depending on how much wear there is, will alter the tappet clearance, and also it may be difficult to move the camshaft forward. If the sump is removed you can see the bottom of the lifters, and on full lift gives a better picture of their condition. I have used a split thrust washer on a '29 motor, just drilled new hole for a locating peg or the side which didn't have one.

[Deleted User]

I think those Bakealite ones are the original type Paul . Stange material for them to choose for that I allways thought,
Roger

PAULARGETYPE

YES RODGER ME TOO BUT THAT WHAT THEY USED

Henk_Brough

Barry, as you know I just building up my engine. Next week the crank with shockabsorber,
flywheel and presureplate go to the machineshop for balansing.
But about the thrust washer : My machineshop told me not to make it from as we call it here jellow copper but to make one from bronze. Because the gears from the timing wheels
have 20 degree pressure angle there come some trust on the washer.
My argument that there is enough oil he disagrees and advises me to take real bronze.
It is not so simple to find the correct material. Jellow copper sheet material I have a lot in 1/16 " thick. What's your opinion ?? By the way, I dismanteled till now two 6 engines from 1937 and 1938, both had no trust washer. And according to damage sighn 's inside the engine
they both has had failure of the timing wheel.

barrysweet52

Henk, the original back thrust washer was made of phenolic - Google it. I believe most people today use a bronze washer as it will last longer. These washers dont always have wings, so the washer can rotate. I was planning to cut off a 1/16" slice off some round bronze bar, then cut some wings to stop it rotating. Whatever I do, I try to make a few spares. Barry