Like Tree0Likes

Good Question here!!!!!!!I promise!

Old 03-02-2002, 06:00 PM
Posts: n/a

I would do as Griff suggested, is it the same if you are in the water? If you are sucking in good water flow, then I would check the hoses connected to the T-stat , are they bent so they are restricting the movement of the poppett balls? If I was a betting man I think that the circulating pump is not working right. You have temp problems and the belts on the pump dance around sounds like the two maybe related? Pull that pump off and look at the impellers and check the bearings. l'd take a good look there. Good Luck

I use the KISS Method when I can't figure someting out!

K eep
I t
S imple
S tupid

Last edited by flylevel; 03-02-2002 at 06:09 PM.
Reply With Quote
Old 03-02-2002, 06:11 PM
Thread Starter
Shorgasm's Avatar
Join Date: Apr 2001
Location: On the back of a chicks M3..If you're gonna ride my ass at least pull my hair!!
Posts: 1,212

Oh that sounds easy enough.......I gotta pull the drive apart to do it...... It does the same thing in the water just less noticible......

I have never let it purposely get too hot.....just adjust the throttle me weird but it's like a reflex.....

The check balls DO NOT seat all the way on the housing....this I noticed......would that cause it.........

Before I put the new impeller in it did it too.......but a bit more severe............maybe the housing is shot?????

I just replace the impeller.....whatta dummy huh?
Shorgasm is offline  
Reply With Quote
Old 03-02-2002, 06:16 PM
birdog's Avatar
Join Date: Jan 2002
Location: Batavia Oh.
My Boats: Top Gun
Posts: 4,034

I was lucky, A merc mechanic told me way back to always replace the whole thing so i always did. As to those poppett balls ..Dunno. Never had a problem with them!?
birdog is offline  
Reply With Quote
Old 03-02-2002, 07:02 PM
Platinum Member
Charter Member
Join Date: Jan 2001
Location: so. WI
My Boats: Formula
Posts: 1,562

Definitely put a whole housing/seal kit in when going Globe- the guys with the Bravo engine-driven pumps have had problems with just an impeller change (scored liners).
After overhauling my engines, one of them didn't have any water output on the hose at all- I used the old engine water pumps (they worked when I took 'em off right?). New impeller & housing kit didn't help. I put on a new engine water pump and good as new!
There was a pulley alignment problem with the belts on certain 260's and 270's- it generated a service bulletin from Merc to install a spacer on one of the brackets. Check with your local Merc service dept. to see if your serial number might be affected and if it was ever done.
FYI, my SBC's/Alphas in the Formula act completely different on the hose than submerged in the water- I finally cut down a plastic garbage can to immerse the drive in and just stuck the running garden hose in the can. No more problems running in the driveway.
jafo is offline  
Reply With Quote
Old 03-02-2002, 11:46 PM
Charter Member
Charter Member
bowtie's Avatar
Join Date: Jan 2001
Location: New Jersey
Posts: 665

The cold water running it on a hose will make the thermostat open and close irregularly. You have to run it in the water to get a true temp reading. As far as the belts, do they squeal? Belts always look wobbly when running at high rpms. Make sure they are all in line with the next pulley. I have to agree with flylevel with the kiss theory. It sounds like your looking for problems you don't really have.
bowtie is offline  
Reply With Quote

Related Topics
Thread Starter
Last Post
General Q & A
11-10-2006 07:10 AM
General Boating Discussion
02-22-2002 05:58 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 09:05 AM.

Copyright 2011 OffShoreOnly. All rights reserved.