5.0 Penta starter may not be the problem ring gear replacement

[iamalienru]

My earlier thread was about my stater not engaging properly. Now I am coming to the conclusion that It could possible be the ring gear on the flywheel. I have pulled motors from cars and replaced them but never a boat. everything looks to be rather basic but I do not know is what i will encounter when I get to the out drive motor connection. Is it a spline bellhousing shaft conect like a transmission? once taken out does the motor and outdrive need to be realined? Where can I get into big trouble i mean what might I do that is different than a car motor that will end up costing me more that if I had just taken it in for repair?

 

[Don S]

Re: 5.0 Penta starter may not be the problem ring gear replacement

What engine and outdrive do you have? FULL model numbers and serial numbers of the engine and drive sure help.

 

[iamalienru]

Re: 5.0 Penta starter may not be the problem ring gear replacement

What engine and outdrive do you have? FULL model numbers and serial numbers of the engine and drive sure help.

I am at work so I do not have the numbers on hand but it is a 5.0 vovlo penta gl sx cobra drive. I pretty sure it gmc or chevy 305 engine. I have the numbers at home I will post if this is not enough info

 

[Don S]

Re: 5.0 Penta starter may not be the problem ring gear replacement

If it's an SX, then just remove the drive (10 minute easy job and should be done yearly anyway) then disconnect all the hoses and cables, electrical etc. disconnect the exhaust hoses to the Y pipe.
Then just remove the lag bolts holding the front mounts to the stringer, remove the two nuts and large washers on the rear mounts and lift the engine out.

 

[iamalienru]

Re: 5.0 Penta starter may not be the problem ring gear replacement

I don't think I will have a problem getting it out I can take anything apart and pretty much put it back together but the question of matching up the outdrive with the motor gives me hesitation. any lining up problems any seals any o rings ? those kind of things also on the exhaust bellow that hooks to outdrive is has a large hose clamp that secures the hose to the motor side but the outdrive side of the hose has a large eye ring clamp which goes inside the hose I think. being that the hose is about 8" long even compressed it is very hard to get to it. I have for long eye ring pliers but have not as yet found one. Any tips on how to compress the ring to fit into the hose? I would like to say thank you for all the helpfull information you all have supplied

 

[Don S]

Re: 5.0 Penta starter may not be the problem ring gear replacement

the question of matching up the outdrive with the motor gives me hesitation. any lining up problems any seals any o rings ?

Yes, you need all of the above. OEM service manuals are what you need to start with, or you are just hopeing you are right as you put things back together. But you need the model and serial numbers for that.

You have to do an alignment once you get the engine back in, and yes there are oring and seals between the drive and the bellhousing.

Spend some time here to understand alignment. engine alignment how to's
It may be about Mercs, but your Volvo is the same exact thing, including the alignment bar.

 

[John2037]

Re: 5.0 Penta starter may not be the problem ring gear replacement

Seems like a lot of work for not being sure; though you should still pull the od, grease the u-joints and inspect. You should be able to see some of the fw with the starter out or take off the lower flywheel cover plate. When I can't get to an area on a boat I will try to use the camera on my phone to get to those impossible places on video mode.

edit - just noticed your other post says there was some ring damage - well then sounds like you'd be pulling her.... They're not too bad but at home my garage didn't have enough room for a chain fall to clear the boat, needed a fork lift.

 

[iamalienru]

Re: 5.0 Penta starter may not be the problem ring gear replacement

The information you all have provided me certainly put some of my hesitation to rest. For that I once again thank you. I still haven't been able to get back to work on it there is just not enough time in the day. I need to retire I will still be trying to match up the starter with some shimms before I commit to pulling the motor I will remove the bottom flywheel cover for further inpection. That will have to wait utill this weekend as it is raining in Sunny California ..thanks Tom

 

[wrench 3]

Re: 5.0 Penta starter may not be the problem ring gear replacement

A V8 engine tends to stop in one of three positions. So there will be three wear spots spaced around the ring gear.