Power Steering cooler restriction?

C

cleanvan

Cadet
Joined
Jan 23, 2009
Messages
6
I am having a problem with the P/S return hose on my '89 4.3 merc. blowing a hole above the clamp where it enters the power steering cooler. I have blown air (with my mouth) through the cooler and it seems to flow with little restriction. Is it common for these to clog and cause problems?


I have cut the hose back and replaced it a couple times and it will blow within a minute at idle even without turning the wheel.


Thanks for any help you can provide!
 
Bt Doctur

Bt Doctur

Supreme Mariner
Joined
Aug 29, 2004
Messages
19,111
Re: Power Steering cooler restriction?

too tight or too wide of a clamp may be cutting the hose at the nipple.Really no pressure at all on the return line compare to the supply side (70-125psi). could the problem be from the cooler to the pump?
This link might help
http://www.boatfix.com/merc/Techbk/97/97hs5.pdf
 
Bondo

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
70,524
Re: Power Steering cooler restriction?

could the problem be from the cooler to the pump?
Click to expand...

Ayuh,... Or even the Pump itself....
 
You must log in or register to reply here.
Top