What's a poppet valve?

[Merc90HPnewbie]

And where can I find it?

 

[The Marine Doctor]

Re: What's a poppet valve?

Poppet valve is a spring loaded plunger (for lack of a better word) Its use is to slow down the water that travels from the waterpump, by doing this the water is able to warm up a bit before it gets to the hottest cyl. <br /><br />TMD

 

[greenoats]

Re: What's a poppet valve?

Would no poppet valve cause #2 and #3 cyl to not operate?

 

[greenoats]

Re: What's a poppet valve?

It's a 3-cyl 65 horse.<br />new powerhead but forgot the poppet when assembling, got one on order.

 

[CU2NITE]

Re: What's a poppet valve?

No the poppit helps regulate water temp. and water flow.<br />CU

 

[Merc90HPnewbie]

Re: What's a poppet valve?

Where can I locate this? For example on a 90 HP Mercury straight 6? What do I have to do to pull it and inspect it?<br /><br />Thanks!

 

[CU2NITE]

Re: What's a poppet valve?

I'm not sure on this motor, mine is an 85 150 merc and it's located on the base of the powerhead on the drivers side. If you don't have a manual get one. Good luck.<br />CU

 

[Merc90HPnewbie]

Re: What's a poppet valve?

Checked the powerhead and manual. The manual mentions poppet valves and thermostats but doesnt say where to find them. Looked on the engine and didn't see anything...

 

[CARLOS]

Re: What's a poppet valve?

MINE IS A V6 ENGINE AND HAS 2 POPPET VALVES , ONE ON THE BASE OF EACH ENGINE HEAD. IT CONTAINS A SPRING & VALVE WHICH CONTROL THE WATER FLOW...IF IT IS WROKEN, MAYBE THE ENGINE OVERHEAT...<br /><br />REGARDS<br /><br />CARLOS SCHEMEL<br /><br />VENEZUELA