Posted by jdemaris on March 23, 2008 at 18:48:18 from (69.67.229.14):
In Reply to: Re: roosa master posted by sherburne on March 23, 2008 at 14:53:38:
To remove, just as MSB said. You have to give it a good wack while trying to turn/loosen - all at the same time. If you don't, you'll crack the head-screw. When you get used to it - like doing a couple of pumps a day - you can almost do it blind-folded.
I assume you've got the proper toothed Bristol wrench? Stanadyne also sells a guide for it to fit into - but it's causes more harm than good - and you're better off not using it.
In regard to the newer "all metal" retainer that MSB and Goose mentioned - I'm a little lost on that one. The plastic-dampened ring that Deere has in the DB and JDB pumps was an option that just about everyone used. But, even back in the 1950s there was also an all steel plate available - but it was rarely used since it did not absorb vibration. In 1985 a new type of a dampened retainer came out - called the EID - which stands for Elastomer Insert Drive. That is what was used on all the GM 6.2s and 6.5s as well as all the Ford 6.9s and 7.3s after mid-1985. It still has plastic parts - but they are encased by metal instead of being held on by rivets. This EID retainer is an update for the Deere pumps like your's if you want to spend an extra $30. If not, the older style plastic ring will last you 10 or 15 years which may not be all that bad.
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