I replaced a lot of the parts during the off season, water pressure guage- temp sender & gauge (complete TelFlex unit, the sender fits differently than Merc, the Merc sender sits in a plastic sleeve where the telflex bolts directly to the head, touching the metal where the Mercury sender does not). Complete poppet assy.
The poppet was the last part, before that I was reading right at the middle (1/2) of the temp gauge, now I am reading between 5/8-3/4. I was out last week and did not like what I was seeing, I came home took the poppet back out and checked it, there is water flowing as the black paint on the new spring was just about all gone and hanging on the spring/carrier. Cleaned it all up and double checked assy, reinstalled it. Ran it for about 2 hours yesterday, temp is still hanging at 5/8, creeping up&down to the 3/4 side of the guage. I am running 10-12 PSI water pressure at 4000-4200, just as the Merc manual says it should be, new water pump less than 20 hrs ago. I wonder if the new poppet spring is a little stronger and not opening as easy? Idleing out of the harbor the temp runs 3/4 on the guage, but yet on hose it will run in the middle or less? I eased it up to 3000rpm once and could see the pressure guage flucuate and temp drop back down very quckly.
Do I have something not working correct or is it the way the temp sended is installed?
Looking for thoughts of where to look?:/
The poppet was the last part, before that I was reading right at the middle (1/2) of the temp gauge, now I am reading between 5/8-3/4. I was out last week and did not like what I was seeing, I came home took the poppet back out and checked it, there is water flowing as the black paint on the new spring was just about all gone and hanging on the spring/carrier. Cleaned it all up and double checked assy, reinstalled it. Ran it for about 2 hours yesterday, temp is still hanging at 5/8, creeping up&down to the 3/4 side of the guage. I am running 10-12 PSI water pressure at 4000-4200, just as the Merc manual says it should be, new water pump less than 20 hrs ago. I wonder if the new poppet spring is a little stronger and not opening as easy? Idleing out of the harbor the temp runs 3/4 on the guage, but yet on hose it will run in the middle or less? I eased it up to 3000rpm once and could see the pressure guage flucuate and temp drop back down very quckly.
Do I have something not working correct or is it the way the temp sended is installed?
Looking for thoughts of where to look?:/