Pressure testing with drive on

[bspeth]

R/MR Alpha 1 ser 6683545.I sent it out to get the upper resealed because I had gear oil in my u joint bellows. The shop mated the upper and lower units improperly and never pressure tested again after reassembly. Today I noticed that they even used the wrong gear oil. 80w-140 is what the invoice said. So I want to drain it and refill with 90w.While it is empty I would like to check their work.Can I pressure test accurately with the drive on and with out turning the drive shaft and shifting shifting the drive? I can rotate the propshaft but the boat is all laid up and I don't want to get back in there if I do not need to.Is there any harm in running the 80w-140?Thanks

 

[alldodge]

Re: Pressure testing with drive on

That should not be an issue and it will be accurate. No rotation or shifting will be needed. Here is the link and some how to's
http://forums.iboats.com/mercruiser...sure-check-prior-post-233546.html#post1573303

 

[bspeth]

Re: Pressure testing with drive on

Thank you.