volvo aq131a with 275 outdrive

[KGPIN]

Re: volvo aq131a with 275 outdrive

Don ty

Thanks for the help, Don and Pirate. Unit is apart with no damage and bearings and race look good fortunately. Bellows was actually shot and is certainly alot thinner then Mercruiser

For future reference, as I indicated in my last thread, the drawings of the aq 275 drive does not show the lower oil tube seal oring, #34. It shows it at the top of the tube in the intermediate drawing only but lists a quantity of two needed. That is where it was confusing.

Remember us old, Mercruiser guys take longer to understand things lol. Will let you know how things go back together. Also will keep different subjects in seperate threads as instructed and which makes alot of sense.

 

[Don S]

Re: volvo aq131a with 275 outdrive

I'm not sure what seals you're talking about. How about posting a link to where you find the numbers, then they might make some sense.

 

[Don S]

Re: volvo aq131a with 275 outdrive

The #24 seal I was referring to is the oring #3 in the picture below. Some grease holds it in place while you put it back together.

 

[KGPIN]

Re: volvo aq131a with 275 outdrive

Don

That attachment you provided makes it much clearer. I dont see it in the manual you provided as an attachment previously for the drives. I been using and am refering to the parts schematics that are provided on Marine parts express or the volvo online store. They do not show the lower oring #4 in any of the diagrams only that you need two of them.

Your attachment raises another question, however, as I do not appear to have the #5 spacer in my 275A drive. Mine has the tube protruding from the intermidiate which the #4 oring was on and just mates with the lower unit seating on top of the strainer assembly. Im not sure if this attachment is for another outdrive (280?) which has the spacer and the 275 did not? I dont see the spacer listed as a part in the online schematics for the 275 or 275A either.

Regards
Paul

 

[Don S]

Re: volvo aq131a with 275 outdrive

I dont see it in the manual you provided as an attachment previously for the drives.

Page 120 of the manual step 4 under Shimming the lower gear to the intermediate housing.

as I do not appear to have the #5 spacer in my 275A drive.

#4 (Spacer sleever) normally fits tight in the intermediate housing, when you put it together put the oring around the sleeve. #5 is a screen strainer.
In the parts diagram you find that sleeve in the intermediate housing section, not the lower unit. Volvo has an odd way of placing things in the parts break downs. It took me years working with it daily as a VP tech to finally learn where to look for what part but they keep changing it, so it's never the same or what they call things. :facepalm:

I would suggest you find your drive charts and look in all the different sections and see what is where.

 

[KGPIN]

Re: volvo aq131a with 275 outdrive

Don

As a retried civilian power plant controls engineer for 20 years for the U.S. Navy Ive seen all kinda of weird manufacture drawings that you need a rosetta stone to decifer, so Volvo Penta is far from alone in that regard..LOL

Thanks again for the expert help
Paul

 

[KGPIN]

Re: volvo aq131a with 275 outdrive

Don

Well here it goes.....Just got drive all back together and im still getting leakage. Throughly cleaned and replaced all orings between lower and intermidiate and upper and intermidiate. Pulled cap on upper, where I did find some evidence of water intrusion. Cleaned and resealed all surfaces using # 2 permatex. I repaced both bellows and reinstalled upper.

So only thing I did not touch or mess with was u joint end of upper. Guess I have to repull it and do the seals in the bearing box behind the ujoints.

When looking at the schematic drawings on the marine parts express website it does not list some of the oring required.
Can you please provide me guidance as to what has to be replaced within the box oring wise. On pages 43 and 44 of the workshop manual I see one sealing oring in a recessed groove which is #22 oring 956000. The two bearing box orings which are shown as #17 do not have a listing in the material list. When looking at the marine parts express website I do not see them listed in the parts listing.

Can you provide me some guidance and if these are the only orings or seals required?

Thanks
Paul

 

[Don S]

Re: volvo aq131a with 275 outdrive

Just got drive all back together and im still getting leakage.

Where is it leaking from?

Cleaned and resealed all surfaces using # 2 permatex.

Are you using new seals when putting this all back together?

Post a link to the parts page you are looking at.

 

[KGPIN]

Re: volvo aq131a with 275 outdrive

Don

Yes, have replaced all orings with new and used #2 permatex. After running pressure test I pulled top off upper gear unit which I had not done previously. Had not pulled since I saw no leakage around top previously. There was some corrosion but cleaned throughly. This is only place I did not use new seals but seals looked fine and utilized permatex as well. Repressurized and I think I can hear some leaking within bellows so I think it must be seals in upper bearing box. How would you get soap solution on that to test? Dont think you can.

Have attached 275A drive diagram where I am getting part numbers from.

Paul

 

[Don S]

Re: volvo aq131a with 275 outdrive

You have some missing numbers for some reason.
You need 17, 19, and 22

 

[KGPIN]

Re: volvo aq131a with 275 outdrive

Don S. and Pirate,

Well finally got unit back together after discovering leak at shift mechenism. Replaced seals there and retested and found unit still leaking (could hear it) inside bellows. When I had disassembled there was only one #17 oring on the bearing box so I reassembled with only one in the recessed groove. Upon disassemby again I see there is a recess right at the corner of part #35 which the bearing box is in.

Don S. Is this correct? One #17 is in the recessed groove on the bearing box and the other is sandwiched when you reassemble the upper gear in the recessed corner of part #35. I am referencing the schematic I attached a couple of blogs ago and shown below. Of course it doesnt even list part 35 with a name but its the rear part of the assembly where the helmut attaches too which sandwiches into the gear assembly. It is almost impossible to tell where they go from the schematic.

 

[nogamesjoe]

has anyone been able to remove the closed cooling system on a aq131a and use raw freshwater from to cool it ?? come on Don S PLEASE GIVE ME GOOD A YES..

 

[GA_Boater]

This is one of the reasons we don't like old topics to reopened. Don S passed away over a year ago. Please do not reply to topics with no activity for 90 or more days. R.I.P. Don.

 

[jerryjerry05]

Joe, you should start your own thread.
Adding on to someone else's is frowned upon here. http://volvopentastore.com/
And remember if there's a will there's a way.
Yes it can be done.
Go the Volvo parts site and look up the older Volvos from the 70-80's.
Some of them were made with out the heat exchanger.