Very interesting. I'm getting hard to start problems when cold also since installing this rebuilt IP as well as having to retard the IP to get it on time (no miss, good acceleration, decent low idle (8000 rpm). But I still have to crank it over quite a bit (aprox. twice for 10 secs ea.) while it's cold to get it going. It starts instantly when warmed up, so I'm not too worried about it anymore. My excess oil
burning case was caused by excess oil
in the crank case. I finally cleared that up with a proper oil change
and installing a longer oil dipstick on right side (starboard) for accurate reference with exactly four quarts of 30 weight oil and filling up one new oil filter
So it sounds like something called the "head" inside my IP might be a bit old and used up. I've just about exhausted my lousy one month return policy, and so I may be stuck with this IP, which isn't all that bad considering the complete hassle of removing it and reinstalling another one. Whew, a job I pray I will never have to do again.
What all this tells me is that if I ever have to do this again that I should either buy a new IP (good luck finding one) or have whatever rebuilt one I buy checked out by another rebuild mechanic before installing it.
Your IP mechanic may be the right fellow for this job. I haven't included my IP rebuild mechanic's name as first he was a real nice guy and helped me through out my installation
problems. And second, this pump does work, it just had to be retarded a little. And because I may not really have a timing problem. After all, one mechanic said that as long as you can adjust it to run good, then you don't really have a problem. He said he has to change the timing on a lot on rebuilt IP installs. But who is he??? He is certainly not an IP mechanic, but he is a professional elder marine diesel
mechanic, so I'll give him the benefit of my doubt.
So next time I'll have all rebuilt IP's checked out on a bench by another mech before installing.
Thanks to everybody for their comments here, I hope somebody besides me learned something. I know I did.