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Post updated to include photo. Thanks JOE54 for your input.

In previous posts I had been trying to determine what is causing my prop ventilation ring and plastic hub insert to melt at higher RPMs, I still do not have a cause or fix for this but I am thinking...

This is what I could find. I could not find the one that DON referred to.

Mercury Marine Service Bulletin 96-20 <br />(Updated 08/10/98, originally issued in 1996) <br />In response to reports of...

I was looking for the proper spec to to tighten down the poppet valve retaining bolts, I found this in commonly asked questions but not sure what it means?

Poppet Valve Retaining Bolts: 44...

Adapter plate? Is this part of the exhaust plate?

Doing some research on Service bulletins I found one from 1996/1997 or so, indicating that the poppet valve spring that would not open at...

Ok thanks very much, I eagerly await your response! I really appreciate it!

Hi Joe, I pulled the poppet valve and seat, the spring and all the other parts looked great, no black soot or carbon buildup anywhere, I looked inside the engine a far as i could and did some...

Yes thankyou, I did cross post the question there.

Im hoping I wont have to go that route, thanks again!

I'll check out the poppet valve, is removal of the powerhead a difficult job? On a scale of 1-10, 1=easy, 10=difficult.

Thanks Joe!

If anyone has any ideas on this please help, Im heading up the the St. Lawrence River in a few weeks and hope to get this issue resolved before then.

Thank you!

Ok so I got the new prop vent ring and installed it along with a new water pump since I was not sure when it was last changed and in a previous post in the mercury forum I mentioned my water PSI was...

Ok so I got the new prop vent ring and installed it along with a new water pump since I was not sure when it was last changed and in my previous post I mentioned my water PSI was around 5-7 psi, I...

Hi Joe, i double checked the gearcase and it does have four water pick up holes on the nose of the gearcase. They appear to be clear of any debris.

Ill have to look into that, it has been that way since I bought the boat, maybe the gauge is bad, I haven't had any issues with overheating, perhaps I need a new water pump. Any suggestions on what...

I would be interested, I have never fished Monomac. Side note, who here has fished Wallum lake in Douglas? Beautiful place!

I think the water PSI Gauge reads around 5-7 at WOT when flat out I will have to confirm next time I'm out, I have not noticed what it reads when turning at high speeds, but I will be sure to make...

Thanks for the initial responses!
The SN for the Engine is: OG274631
As a follow up, I took the boat out today with the remains of the seal removed, very difficult to get the boat on plane but...

So yesterday I was looking at my lower unit and discovered the plastic prop ventilation (exhaust seal ring) on my trophy prop was all chewed up. Not sure how that happened so i was wondering what...

Thanks for the responses!

Hey all, I am going to be fishing the area around 1000 Islands on the Saint Lawrence River end of July, I am new to Hummingbird and I was wondering what Chip Navionics or Hummingbird I should get...

Same thing has happened to me with a bottle cap, also had a bunch of discarded line cause the hotfoot to stick once, its not a fun moment when you realize you cant slow down!

My 1995 492 VS is rated for a 250 HP 448146

Thanks for the the responses, I actually went back with rivets as that was how it came from the factory. I used 3/16"-1/4" grip range aluminum rivets with a little adhesive caulk and it work...

So I have to re-install a gas shock bracket to my front storage box deck lid on my 1995 Ranger 492 VS (if this matters) , it appears the old mounting location has worn out over time and finally...