Outdrive Pressure test Question

[Connor0612]

Greetings, new comer to the forums here.

I removed my 1998 Volvo SX and found that a very small amount of oil has gathered around the bottom of the prop shaft. So I put a prop shaft seal on order and drained the oil.
For shits and giggles I pressure tested the unit and it held steady for 10 minutes at 15psi, even while spinning the shaft.

Question is, how reliable is the pressure test and should I still be changing the prop shaft seal?

On a side note, is there any reason someone would have drilled a hole in my prop shaft? Should I fill the hole with weld?

Photo attached

TIA

 

[ROY WILLIAMS]

Greetings, new comer to the forums here.

I removed my 1998 Volvo SX and found that a very small amount of oil has gathered around the bottom of the prop shaft. So I put a prop shaft seal on order and drained the oil.
For shits and giggles I pressure tested the unit and it held steady for 10 minutes at 15psi, even while spinning the shaft.

Question is, how reliable is the pressure test and should I still be changing the prop shaft seal?

On a side note, is there any reason someone would have drilled a hole in my prop shaft? Should I fill the hole with weld?

Photo attached

TIA

the outdrive is the draining it every year in the fall october ... then the air pressure 7-10 psi. inside the oil outdrive .. 24 hrs ....
the outdrive is take it of of the engine october ......all those seals spray it ... no bubbles ..then the grease -cleaning it ...

 

[matt167]

You could try a little vacuum to test the seals the other way. You wouldn’t want much but a mighty vac would work.

 

[Scott Danforth]

Volvo also specifies a vacuum test

 

[Connor0612]

Thanks for all the replies! I appreciate it. I need to get another drain seal then I’ll do a vacuum test and see if my results change

 

[ROY WILLIAMS]

Thanks for all the replies! I appreciate it. I need to get another drain seal then I’ll do a vacuum test and see if my results change

well the outdrive 7-10psi ... 24hrs ....
the psi air pressure is the soap spray outdrive is the bubbles !

 

[Connor0612]

I’ve confirmed I have a small oil leak at the prop shaft seal. Also appears that somebody has installed it backwards with the sealing side facing out (I can see the spring in the seal).

Anyone know the best place to get an online workshop manual for a 1998 Volvo penta sx? Anyone have the Haynes one?

 

[Scott Danforth]

I’ve confirmed I have a small oil leak at the prop shaft seal. Also appears that somebody has installed it backwards with the sealing side facing out (I can see the spring in the seal).

Anyone know the best place to get an online workshop manual for a 1998 Volvo penta sx? Anyone have the Haynes one?

there are two prop seals. one facing inward to keep oil in, one facing outward to keep water out.

the only place to get factory manuals if from volvo penta. https://www.volvopenta.com/en-us/your-engine/manuals-and-handbooks/

a haynes manual is only good if you run out of toilet paper or knee pads.

 

[BRICH1260]

If I remember right, there are several Youtube video`s online to reference before starting the task.

 

[Connor0612]

there are two prop seals. one facing inward to keep oil in, one facing outward to keep water out.

the only place to get factory manuals if from volvo penta. https://www.volvopenta.com/en-us/your-engine/manuals-and-handbooks/

a haynes manual is only good if you run out of toilet paper or knee pads.

Ah, good to know! Thanks. I haven’t seen a double sided lip seal like this one before. I tried the Volvo penta link you sent and according to my engines serial number T01311839 it doesn’t have any info.

 

[Connor0612]

If I remember right, there are several Youtube video`s online to reference before starting the task.

Nice I’ll check them out. Just whipped up a prop shaft bearing carrier tool. It’s not the prettiest but I’m just going for functionality

 

[Scott Danforth]

Ah, good to know! Thanks. I haven’t seen a double sided lip seal like this one before. I tried the Volvo penta link you sent and according to my engines serial number T01311839 it doesn’t have any info.

You most likely have to contact them because they pulled the info for stuff 25+ years old a few years back

There should be an email link

 

[Connor0612]

You most likely have to contact them because they pulled the info for stuff 25+ years old a few years back

There should be an email link

Ok thanks. I’ll try that