Join Date: Mar 2012
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Yes, the starter needs to come off to access the RH block drain. Upper starter bolt is annoying. I like the Fumoto valves because you shouldn't need to drop the starter again, unless it fails. Mine had visibly darker material coming out of the RH block drain; flow through the lower jacket is slow, and stuff can easily accumulate there. Edit: The contribution from dropping the lower rad hose is relatively minor; but I think that the block drains are much more important.
I debated replacing my water pump with the BPD unit when I was into it for the coolant change and egr delete. Decided against it because there's no evidence that mine's impaired (towing heavy for about 3k miles, it cooled well) and the number of water pump failures seems to be fairly low relative to the other major issues. It could also be that some of the impeller separations are related to trying to pump gelled coolant.
Last edited by L&B; 06-28-2012 at 08:20 AM.
Reason: added a thought