I am getting near closing out my boat restoration project that was planned as a 3 week make over. I am in my 5th month but I am very close to done and ended up doing so much more than I planned.
my last thread is here http://www.marineengine.com/boat-forum/showthread.php?426405-290DP-rebuild-repair-question
I will post a detailed follow up to that with some pictures of some of the things i found to give back a little this forum that gave me so much info. Everyone and especially Rick has been very helpful.
The drive and engine got put back together a couple months ago, now I have finally got around to building a leak down test assembly and used it last night. Results were pretty good for the pressure, it went from 7 to 5.5 psi in 2 hours. For vacuum test, not so great; 15 in. of Hg vacuum bleeds out in about 2 minutes.
I recall reading that there is a specific seal in the 290 DP-A drive that the vacuum test will fail on where the pressure test holds. I can't find that reference anymore. Need some help on this. I probably messed up reassembling something when I replaced all the seals. The drive seemed to work well. it has been wet for an hour when I did some light testing; put the boat in and out of gear a few times in forward and reverse. I haven't run it under much load or for any duration.
Also, is a pressure bleed like I described an issue? Boat is typically slipped in the water all year.
Thanks, Donny
my last thread is here http://www.marineengine.com/boat-forum/showthread.php?426405-290DP-rebuild-repair-question
I will post a detailed follow up to that with some pictures of some of the things i found to give back a little this forum that gave me so much info. Everyone and especially Rick has been very helpful.
The drive and engine got put back together a couple months ago, now I have finally got around to building a leak down test assembly and used it last night. Results were pretty good for the pressure, it went from 7 to 5.5 psi in 2 hours. For vacuum test, not so great; 15 in. of Hg vacuum bleeds out in about 2 minutes.
I recall reading that there is a specific seal in the 290 DP-A drive that the vacuum test will fail on where the pressure test holds. I can't find that reference anymore. Need some help on this. I probably messed up reassembling something when I replaced all the seals. The drive seemed to work well. it has been wet for an hour when I did some light testing; put the boat in and out of gear a few times in forward and reverse. I haven't run it under much load or for any duration.
Also, is a pressure bleed like I described an issue? Boat is typically slipped in the water all year.
Thanks, Donny