Marine J1171 question

[kfx400]

Have not been on here for a while, but need some knowledge from some Xperts! Here are some pics that will hopefully help to answering my question. How far in are these allen head set screws supposed to be turned in from seat?

 

[tpenfield]

Re: Marine J1171 question

That doesn't look like a J1171 . . .

 

[kfx400]

Re: Marine J1171 question

That's what it says on the electric motor!

 

[tpenfield]

Re: Marine J1171 question

Yup, SAE Marine "J1171" is the standard electrical spark protection. Looks like the trim pump part number is 88475A1, which I believe is a Prestolite pump.

Are you rebuilding/repairing the pump?

 

[kfx400]

Re: Marine J1171 question

Yup, SAE Marine "J1171" is the standard electrical spark protection. Looks like the trim pump part number is 88475A1, which I believe is a Prestolite pump.

Are you rebuilding/repairing the pump?

Actually the motor, But I did disassemble the pump while I had it apart to see if anything looked wrong. I did not realize that the set screws were putting pressure on springs and check balls.So when I took them out, I neglected to count the turns out from seat! My bad. I just want to make sure than when I get everything back together and oil in the res, and the lines hooked up. That the lower unit goes both ways smoothly! Thanks for the help:joyous:

 

[Howard Sterndrive]

Re: Marine J1171 question

I doubt there's any "number of turns". At the factory, someone probably runs the pump, stalls a function and then adjusts the screw until the pressure on the gauge is right. Maybe you can see where the locknuts were if you look close.

 

[Scott Danforth]

Re: Marine J1171 question

those are the pressure reliefs. you need a gauge on the port side, then see what the pressure is. its a pain in the arse on these small units because you have to keep pulling the unit apart. they usually set it in a bath of oil at the factory.

 

[kfx400]

Re: Marine J1171 question

those are the pressure reliefs. you need a gauge on the port side, then see what the pressure is. its a pain in the arse on these small units because you have to keep pulling the unit apart. they usually set it in a bath of oil at the factory.

Thanks for the replies fellas,Good info. 2 more questions What weight oil do I need to put back in the Res and does anybody know of A good marine shop that maybe I could ship this unit too,To have them check and set the correct pressure? I feel like this might be my best option instead of trying to tweak it and throwing the damn thing on the garage floor and ruining it! I just got the motor repaired and hate to trash the whole thing. I think somewhere I found the OEM unit new for like 670$ Ouch!

 

[achris]

Re: Marine J1171 question

$670 sounds about right for Mercury. Try Parker-Oildyne, the pump makers...

 

[Scott Danforth]

Re: Marine J1171 question

My cost for the 108 Oildyne pump is $575.

Any hydraulic shop can set the pressures.

 

[tpenfield]

Re: Marine J1171 question

How about these guys? I have bought a few things from them and they have worked well

DB Electrical - NEW TILT TRIM MOTOR BMW/MERCRUISER/VOLVO-PENTA 6217 PT440

 

[kfx400]

Re: Marine J1171 question

Gentlmen, Thank you all for your knowledge and help!:joyous: @ Scott Danforth, I will look for a hydraulic shop in my area. Now the only thing I have to find out is what the pressure is supposed to be set @. I have no idea, But I will find out somehow.:help:Thanks 2 everyone for their help and advice. It is very much appreciated!:joyous:

 

[Scott Danforth]

Re: Marine J1171 question

300 Psi raise, 90 psi lower if memory serves me right. The oil dyne units can provide up to 3000 psi

 

[kfx400]

Re: Marine J1171 question

300 Psi raise, 90 psi lower if memory serves me right. The oil dyne units can provide up to 3000 psi

Thank U Scott!:happy:

 

[kfx400]

No Title

Okay fellas, Need some more expertise.Have this cylinder leaking that is 34 yrs old, Would it be easier to rebuild or purchase a used 1? Been searching for a O-ring kit, But not sure which to purchase Can't find any #'s on the cylinder! Only # I can see is 50R looking straight from the back. Here is the cylinder that is leaking. Any links to seal kit or fairly priced cylinders?