J/JD tappet cover washers

[aumick10]

I am building some 29 J/JD's. I have come across people using leather washers on the lifter covers on these models, but have no information from the books. Does anybody have information on the use of leather washers on these models.
Cheers

[Steve Swan]

I am building some 29 J/JD's. I have come across people using leather washers on the lifter covers on these models, but have no information from the books. Does anybody have information on the use of leather washers on these models.
Cheers

Mick, i believe you are referring to pn 145-17 leather washer ?

Below are my notes about this washer.

Inlet Pushrod Parts Stack Order of Assembly; Top to Bottom*

1. Pushrod spring cover end (“Top hat”) 143-20
2. Leather washer 145-17
3. Pushrod spring cover washer (21/32 x 5/16) 144-20
4. Pushrod spring 140-17
5. Pushrod spring washer, steel (0226)**

*Description of parts is factory parts book nomenclature

**The parts book calling for the 0226 (standard flat) washer doesn’t make sense. 0226 dimensions are 5/8 x 3/8 x 3/64. I inquired with other guys more knowledgeable than me 0226 and the unanimous answer was that this washer was a special washer made of spring steel, slightly concave in shape; dimensions 11/16 x 7/16. No explanation could be given for why the factory parts book lists 0226 to be fitted.

Instructions for Making Proper Fitting Leather Washers
The leather washer is about 9/16 of an inch in diameter with a 1/4 of an inch hole through it and about 3/32 of an inch thick.

I use hole punches to punch out the leather washers.

Be careful that you don't make the outside diameter of the washer too big as the top hat washer that locates the pushrod in its retaining nut has to be able to move to keep everything in line.

The bore of the nut is 5/8 of an inch and the tendency is to make the washer to fit that bore size and if you do you introduce a bind that you don't want.

[aumick10]

Thanks Steve.
Is there one underneath the exhaust cover to the cylinder?

[MMasa]

No there is not.
Mark

[aumick10]

Thanks gentlemen.