Quote:
Originally Posted by dieseldan44
May be cool to take apart a 617 with no consequences....
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You may want to think about a long term rebuild. It is always nice to have a spare 617 around for a rainy day. With blowby like that, I would NOT suspect head gasket, or even valve seals. I would suspect rings. Maybe you could just do a ring job, and valve job and it may last another 300,000 miles. That would not cost much (compared to a complete rebuild). Is the donor engine from the same year and/or same chassis? The reason I ask, is that I put an '85D 617 in my '82 CD, and had to change a lot of parts. The '85 had a sensor on the I P and the adapter plate that I did not want on the '82. It also had no air cleaner oil drain tube. I changed the oil pan, adapter plate, injection pump, and a few other items.