Offshoreonly.com - School me about trim pumps

Page 2 of 2

Show 40 post(s) from this thread on one page

Offshoreonly.com (https://www.offshoreonly.com/forums/)

- Do It Yourself, Boating on a Budget (https://www.offshoreonly.com/forums/do-yourself-boating-budget-249/)

- - School me about trim pumps (https://www.offshoreonly.com/forums/do-yourself-boating-budget/287044-school-me-about-trim-pumps.html)

rws	11-09-2012 10:59 AM

Trim pumps are parker 108 series hyd. power units.

Parker makes these in four different volumes
.0098,.0187,.0246.0321 per revolution.

I know that trim pumps are higher volume than K-Planes but i am not at home so i cant look up the pump sizes.

I would bet that you have trim pumps hooked to your K-Planes.

tomas_wallin

11-09-2012 12:01 PM

Quote:

Originally Posted by C_Spray (Post 3808961)

I was under the impression that these are positive-displacement pumps, in which case the only thing that will speed things up is a larger size pump rotor set or a faster motor. It's all about pump displacement rate versus ram cavity volume.

I could be wrong... ;)

Correct!

I have a trim tab pump for my drive and it's wicked slow (but strong enough), so I'll be replacing the rotor section of the during the winter.

JRider

11-12-2012 08:01 AM

Aren't those the O/B style pumps. Shouldn't the trim pump be a larger Oildyne I/O style with tank?

ICDEDPPL

11-12-2012 08:46 AM

I tried adjusting the hatch pump, played with it for a about an hour but there was no difference in speed..... now it makes a funny sound ha!

27 MAGNUM

11-12-2012 10:22 AM

Quote:

Originally Posted by dereknkathy (Post 3811579)

there is. buy 2 brand new pumps...

They are both Brand NEW sa

ICDEDPPL

12-03-2012 09:13 PM

Quote:

Originally Posted by rws (Post 3812003)

Ok so that makes sense... I would need K planes pumps.
As far as the hatch I hooked up a different pump and no difference so I`m going to assume its the cylinder thats at fault. not that its broke just thats its slow.

David H

11-08-2013 01:21 PM

How do you know what volume your pump is putting out?? I have one drive reacting faster than the other.

ICDEDPPL

11-09-2013 05:41 PM

That seems to be a common issue.. I played musical chairs with my pumps, switched lines etc and one of my drives is still slower going down no matter what pump is running it.... I think its in the cylinders personally.

TMITCHELL

11-18-2013 02:33 PM

Is there any way of identifying the pump volume by markings on the pumps? I need a pump for k planes. I have 1 need a match.

All times are GMT -5. The time now is 02:05 AM.

Page 2 of 2

Show 40 post(s) from this thread on one page