Caterpillar 30 as in serial number PS1 to PS13285, under the cylinder head there are four washers, part number S-528, located around the studs which have the fuel fill valves attached. What are they for? What can they be made from? Can someone supply me dimensions of them?
The S528 washers seal the stud to the cylinder head so that no dirty air gets into the engine by that path. I think I have the size of it written down somewhere; it is just not here in my office. I will try to remember to get it when I get to the shop later today. The other option is to call Olson's at 360 871 1207, and they will cut and send them to you.
Thanks
Ken
Hi Team,
the S528 washers are felt for the priming cup stud, dimensions given are :- 1 1/8" OD x 3/4" ID x 9/16"--from my Best/Caterpillar Thirty Instruction and Parts Book. Form No SL 193. Covers S/No S-1001 to S-3100 Inclusive.
Hope this helps.
Eddie B.
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