Home | Classifieds | History | Technical | Links | Store | About Us | Email
Topics Topics Edit Profile Profile Help/Instructions Help Member List Register  
Search Last 1|3|7 Days Search Search Tree View Tree View  

P-60 - Cannot get proper RPMs under load

Old Marine Engine » Palmer Engine Co » P-60 - Cannot get proper RPMs under load « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Jean Weaver
Visitor
Posted on Sunday, September 26, 2010 - 02:54 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Had a carburetor with a bad float; rebuilt the carb; engine seems to run smooth/perfect (3500 RPM no problem) until you put it under load where I can only get 1500 RPM. Checked compression, fuel flow, spark and all appear good. Messed with the main fuel flow valve on the carb - seems ok. It ran great before I had the float issue & now I'm stumped. Ideas?
Top of pagePrevious messageNext messageBottom of page Link to this message

Brent
Member
Username: brent

Post Number: 4
Registered: 03-2009
Posted on Tuesday, December 14, 2010 - 10:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Jean, Our P-60 with a 2-blade, 9x12 prop maxed-out at 1500 rpm under load (pushing a 22-foot catboat at ~6kts), so this may not be unusual. What did your rpm peak at before the rebuild?
Top of pagePrevious messageNext messageBottom of page Link to this message

kevin stone
Advanced Member
Username: kdstone

Post Number: 34
Registered: 01-2009
Posted on Wednesday, December 15, 2010 - 08:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I have a 3 blade prop on our Palmer. Cruising rpms are 1800-2000, I get about 6 knots from that.
Top of pagePrevious messageNext messageBottom of page Link to this message

kevin stone
Advanced Member
Username: kdstone

Post Number: 35
Registered: 01-2009
Posted on Wednesday, December 15, 2010 - 08:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Another thought, check your prop for fouling.
Top of pagePrevious messageNext messageBottom of page Link to this message

kevin stone
Advanced Member
Username: kdstone

Post Number: 36
Registered: 01-2009
Posted on Wednesday, February 09, 2011 - 09:20 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Just an addition to this post. We are currently having a loss of rpm also. With Dick Days help we feel we have narrowed it down to the reverse gear.
Top of pagePrevious messageNext messageBottom of page Link to this message

Richard A. Day Jr.
Senior Member
Username: richardday

Post Number: 937
Registered: 11-2003


Posted on Thursday, February 10, 2011 - 05:48 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Well after a thorough going over of his reverse gear we did find his brake band was much too tight and while that was easily cured the problem didn't go away.
I came to the conclusion Kevin must have engine problems as the OXKB reverse gear really has no drag on the engine in forward unless the stern bearing is a problem and he replaced that. No change Kevin found the problem was the fuel pump battery lead as I understand it was barely connected to the battery source. Once he cured that the problem went away. Just glad he worked his way through the problem. Must have been a lot of sweat in narrow bilges!!!

Add Your Message Here
Post:
Bold text Italics Underline Create a hyperlink Insert a clipart image

Username: Posting Information:
This is a public posting area. Enter your username and password if you have an account. Otherwise, enter your full name as your username and leave the password blank. Your e-mail address is optional.
Password:
E-mail:
Options: Automatically activate URLs in message
Action:

Administration Administration Log Out Log Out   Previous Page Previous Page Next Page Next Page

Home | Classifieds | History | Technical | Links | Store | About Us | Email
&copy 2005 OldMarineEngine.com, P.O. Box 188, Forest Dale, VT 05745-0188 • Phone: 802-247-4864 • All rights reserved.
   Marine Engine Seloc Repair Manual Lookup Tool

marine gas engine repair and restoration