| Author |
Message |
|
OwenDickeson
MMT Elite Member
Joined: Wed Mar 11, 2009 12:45 pm
Posts: 9869
|
 Even the almighty IM heads valves leak Less than 100 hours on these heads, and the intake valves on both heads leak. 
|
| Wed Feb 29, 2012 5:35 pm |
|
|
|
BoatDR
MMT Sponsor
Joined: Tue May 24, 2011 6:43 am
Posts: 1604
|
Re: Even the almighty IM heads valves leak Did you try running any cleaners thru the motor before you took them off?
I've had 2 motors come thru here this month to get ready for fishing season that upon an initial inspection failed a leak down test. But after running a cleaner thru the motor (and getting out all the carbon deposits from running cheap gas) they were fine.
|
| Wed Feb 29, 2012 5:41 pm |
|
|
|
POKER1
MMT Elite Member
Joined: Tue Jan 13, 2009 8:02 pm
Posts: 6243
Location: Bossier City
|
Re: Even the almighty IM heads valves leak
_________________
18x48 Charles Leonard / 36PD
"I do think there is a Squatch in these woods"!!!!!
|
| Wed Feb 29, 2012 5:44 pm |
|
|
|
BoatDR
MMT Sponsor
Joined: Tue May 24, 2011 6:43 am
Posts: 1604
|
Re: Even the almighty IM heads valves leak First I started with a decarbonizer (foaming degreaser) called Power Foam from Amsoil. Then ran about a gallon of gas mixed with a shock treatment of Yamaha Ring Free. I also told my customers to run their next 2-3 tanks with some Ring Free just to be on the safe side, but my leak down numbers went from 65% blow by to just under 20% on both motors.
|
| Wed Feb 29, 2012 5:49 pm |
|
|
|
OwenDickeson
MMT Elite Member
Joined: Wed Mar 11, 2009 12:45 pm
Posts: 9869
|
Even the almighty IM heads valves leak No I didn't
I always run a 93 octane with marine Stabil.
|
| Wed Feb 29, 2012 5:52 pm |
|
|
|
POKER1
MMT Elite Member
Joined: Tue Jan 13, 2009 8:02 pm
Posts: 6243
Location: Bossier City
|
Re: Even the almighty IM heads valves leak
_________________
18x48 Charles Leonard / 36PD
"I do think there is a Squatch in these woods"!!!!!
|
| Wed Feb 29, 2012 6:05 pm |
|
|
|
BoatDR
MMT Sponsor
Joined: Tue May 24, 2011 6:43 am
Posts: 1604
|
Re: Even the almighty IM heads valves leak
|
| Wed Feb 29, 2012 6:13 pm |
|
|
|
POKER1
MMT Elite Member
Joined: Tue Jan 13, 2009 8:02 pm
Posts: 6243
Location: Bossier City
|
Re: Even the almighty IM heads valves leak
_________________
18x48 Charles Leonard / 36PD
"I do think there is a Squatch in these woods"!!!!!
|
| Wed Feb 29, 2012 6:16 pm |
|
|
|
duckduckboom
MMT Elite Member
Joined: Tue Nov 23, 2010 6:33 pm
Posts: 5603
Location: Corner of Hell an high water, La
|
Re: Even the almighty IM heads valves leak My stock ones looked just like that. I laped them and put it back together. It runs fine now but I didn't get a chance to put it in the water yet
_________________
You have your whole life to be an idiot, take a day off!
|
| Thu Mar 01, 2012 12:32 am |
|
|
|
naj
MMT 1000 Club
Joined: Fri Jan 22, 2010 8:40 pm
Posts: 1620
Location: Larose, Louisiana
|
Re: Even the almighty IM heads valves leak
_________________
18' X 48" Center Console Sportsman Fab with a Yamaha F70LA
18' X 48" Center Console Sportsman Fab Dragging a 36hp ProDrive
15' X 42" Sea Arch with a 27hp ProDrive
|
| Thu Mar 01, 2012 1:06 am |
|
|
|
OwenDickeson
MMT Elite Member
Joined: Wed Mar 11, 2009 12:45 pm
Posts: 9869
|
Even the almighty IM heads valves leak Oh well they are gonna get a valve job and have everything checked out.
|
| Thu Mar 01, 2012 8:50 am |
|
|
|
MaXXis85
MMT Elite Member
Joined: Wed Jan 14, 2009 7:23 am
Posts: 6233
Location: Tarkington, TX
|
Re: Even the almighty IM heads valves leak Kind of explains why it was not running like it used too in the mid range huh?
_________________
Bayou Surface Drive
337-351-0362
Tarkington, TX 77327
|
| Thu Mar 01, 2012 9:16 am |
|
|
|
OwenDickeson
MMT Elite Member
Joined: Wed Mar 11, 2009 12:45 pm
Posts: 9869
|
Even the almighty IM heads valves leak That and why I had to step up my pilot jet one size larger to get it to come off of idle decently.
|
| Thu Mar 01, 2012 10:56 am |
|
|
|
