rothfm
Ensign
- Joined
- Sep 26, 2006
- Messages
- 915
In the fall i did new stats, and diverters. Both heads always regulated at 140 after coming up to temp.
This Spring, Was having issues at cold starts, with starboard side getting too hot before the stat would open. Would go to 180+, all i had to do to bring it down was give it a short REV or two in neutral-it would immediately come down to 140 and remain there. Port was fine at 140deg steady. All would remain ok till next cold start.
So today...I removed the t-stat housing, All looked ok. I know about the Bleed-Hole. So I installed a new Sierra kit. But I also very slightly opened up the single bleed-hole (just a hair), and also notched each poppet as someone here recommended. It was a very small notch in each.
Now Temps are even, but it only comes up to about 100-105 on Muffs with very cold well water (55deg). Just before this, same well water would allow it to come to temp fine.
Are my Stats even opening? My guess is enough cold water is now getting by the Stats via "3" Bleed holes(bleed and 2 v-notches), and that alone is regulating the block temp at 100-105 with the stats closed.
Does this sound like what is happening? Darn. Wish I Didnt notch those poppets.
I run Seafoam regularly in the fuel, and also do periodic OMC Engine Tuner treatments.
BIG QUESTION: Any issues running like this? At speed its going to bypass alot of cold water thru the poppets anyway and bring temps down correct?
Otherwise it runs really well. I have extra parts, Should I go back and leave it original? (orig size bleeder, and not notched poppets). Its a bubble back, but i've gotten pretty good at doing them
This Spring, Was having issues at cold starts, with starboard side getting too hot before the stat would open. Would go to 180+, all i had to do to bring it down was give it a short REV or two in neutral-it would immediately come down to 140 and remain there. Port was fine at 140deg steady. All would remain ok till next cold start.
So today...I removed the t-stat housing, All looked ok. I know about the Bleed-Hole. So I installed a new Sierra kit. But I also very slightly opened up the single bleed-hole (just a hair), and also notched each poppet as someone here recommended. It was a very small notch in each.
Now Temps are even, but it only comes up to about 100-105 on Muffs with very cold well water (55deg). Just before this, same well water would allow it to come to temp fine.
Are my Stats even opening? My guess is enough cold water is now getting by the Stats via "3" Bleed holes(bleed and 2 v-notches), and that alone is regulating the block temp at 100-105 with the stats closed.
Does this sound like what is happening? Darn. Wish I Didnt notch those poppets.
I run Seafoam regularly in the fuel, and also do periodic OMC Engine Tuner treatments.
BIG QUESTION: Any issues running like this? At speed its going to bypass alot of cold water thru the poppets anyway and bring temps down correct?
Otherwise it runs really well. I have extra parts, Should I go back and leave it original? (orig size bleeder, and not notched poppets). Its a bubble back, but i've gotten pretty good at doing them
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