It's a good idea to measure it, just for kicks and giggles, but if it was OK before, then it will probably be good. If it turns out to be out of spec, it would be good to know as well.
Thanks. Understood that it's good practice to measure it.
Long story short, I had a leak at the prop shaft, the shop replaced the seals but failed to mention the shafts were grooved. Replacing the seals didn't correct the leak so they took it apart and I sent them in to get machined, gears were not pressed off. They now want to charge me something like $600 to reinstall...on top of what I already paid for the seal replacement.
Considering they should have already performed the work previously I don't think they should be charging me to reassemble. Time for me to buy the hardware and do it myself.
I am curious if the seals will actually be oil-tight since the shaft(s) have been machined down a bit to get rid of the grooves. I would think you may have to replace the shaft(s)
Not sure the needle bearings will like the new dimension of the shaft either. :noidea: depending on where the shaft was machined . . .
I should have been more specific. I sent them to JR Marine where Ron machined them and then applied a hardened chrome to the original thickness. They look like new.
There are several things which give me concern. The gears are not pressed on or off, they use snap rings and bolts. Machining a shaft makes it smaller so now the seal will not fit correctly. A worn shaft means it needs to be replaced, or built up and machined down.
Backlash tells you how well the gears mesh and are adjusted by shims. My guess from what the previous mechanics did with the shaft tells me they don't know what there doing, and/or don't have the correct tools. So letting them install would be no different then you doing it without checking.
There are several things which give me concern. The gears are not pressed on or off, they use snap rings and bolts. Machining a shaft makes it smaller so now the seal will not fit correctly. A worn shaft means it needs to be replaced, or built up and machined down.
Backlash tells you how well the gears mesh and are adjusted by shims. My guess from what the previous mechanics did with the shaft tells me they don't know what there doing, and/or don't have the correct tools. So letting them install would be no different then you doing it without checking.
When I asked the marina manager the first time how the shafts looked (including if they found fishing line or debris) their response was it looked fine...fast forward to now... When they took it apart the second time I asked why they didn't mentioned the grooves originally, the response I got from the manager (second hand from the tech) was that 'I was asked to replace the seals, so that's all I did'. He then continued to tell me the tech was not longer employed there.
Yeah, I have a pretty good reason to be pissed at them. This is a well known marina/dealer in the NH Lakes Region.
Sounds like the shop went to a lot of trouble, rather than just replacing the shaft for about $400. At least if it was just the smaller of the 2 shafts that had the groves
We use SKF Speedi-sleeve when possible quick and easy, mainly on Volvo penta DP drives. the larger outer shaft always have grooves, so we fit a sleeve and new OEM seals and they are like new...............Speedi sleeve is $30 CAD but had to make the install tool which was no hard.
Sounds like the shop went to a lot of trouble, rather than just replacing the shaft for about $400. At least if it was just the smaller of the 2 shafts that had the groves
It's possible but very hard to do. You basically use a dent puller and screw into the seal then IF (the big if) the screw holds it can pull it out. Hardly ever works on the inner shaft.
It's possible but very hard to do. You basically use a dent puller and screw into the seal then IF (the big if) the screw holds it can pull it out. Hardly ever works on the inner shaft.
Thank you. I'm just trying to make sure I have all the bases covered when talking to the shop. They should be putting this back together without any new charges.
I would make sure they are using the new seals
[FONT="]1 each Small inner seal 26-8M0033407 (replaces 2 each lip seals)[/FONT]
[FONT="]1 each Large outer seal 26-861694 (replaces 2 each lip seals)[/FONT]
