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RD4G Fuel pump ring seal number/availability?

unclehuck ยท 2020-09-08 18:19

hello all i am trying to stop the fuel leak into the bottom of fuel injection pump on a RD 4G I removed the pump and it looks like the ring seal on the fuel intake manifold is missing. the pump side is cone shaped and i imagine the seal looks like a small cone? anyway i do not have the parts catalog. maybe some one can help me out here? any source for the parts catalog? greg

Replies3
  1. #1Old Magnet2020-09-09 00:13

    The seal required is a -318 o-ring. They start out as an o-ring but become cone shaped and eventually loose their seal. Parts books can usually be found on ebay. Found an on line parts book here... http://www.tractorparts.com/PDFs/CAT_D4-4GPARTSlargepps.pdf

  2. #2unclehuck2020-09-09 14:15

    Thank you for the help I was thinking about a good sealant to use on the new one. Any thoughts on type?

  3. #3Old Magnet2020-09-09 19:40

    Sealant not required nor originally recommended.