Topic: Is 1975 too new for this forum? – Antique Outboard Motor Club,Inc

This topic has 10 replies, 7 voices, and was last updated 6 years ago by shoestringmariner.

Viewing 10 posts - 1 through 10 (of 11 total)

1 2 →

Author

Posts
April 8, 2018 at 11:25 pm #9588
shoestringmariner
Participant
Hey guys, I picked up a new fishing boat last week. It’s not a classic in my mind but the motor is a 1975(?) 650 mercury. On earmuffs I t starts and runs great. Restarts on a flick of the switch. My question as I’ve stripped out all the foam on the inside of the hood. It was turning to dust by the lightest of touch. Should I bother replacing it? If so, is it readily available or what do you guys use as a substitute?
April 9, 2018 at 12:27 am #73643
frankr
Participant
US Member
Too New???? Heck no. Official aomci rules say anything over 30 years is a "classic". Personally, I’d just strip all the foam out and run it.
May be a tad louder.
April 9, 2018 at 1:14 am #73646
chris-p
Participant
You can run as is like Frank says, or ill send you an email with what I have used. Helps a little but not a lot.
April 9, 2018 at 2:09 am #73651
shoestringmariner
Participant
Thanks guys. Hey Chris I hope you’re doing well. What are the odds that you would have a front plate for this hood?
The one that I have is all cracked up.
April 9, 2018 at 4:35 pm #73678
rmhxruss
Participant
Basically if it"s over twenty years old classic applies.
April 9, 2018 at 4:46 pm #73679
Mumbles
Participant
A few years ago someone here used this type of material with good results:

https://www.ebay.com/itm/SOUNDCOAT-1-2- … 0011.m1850

For the OMC motors, I have replaced the foam using 1/2" foam and a can of spray glue.
April 9, 2018 at 5:01 pm #73682
shoestringmariner
Participant
Thanks mumbles, that looks pretty good. I was thinking of a foil back type of insulation for the front cover. Just in case the carbs or spitting fuel all over it. I don’t know if these motors typically do that or not, but I had a snowmobile as a kid that was bad for that

Actually, on that topic, should this motor not have some sort of intake housing? It’s just two carbs wide open. I can’t seem to find anything on the Internet
April 9, 2018 at 8:12 pm #73697
outbdnut2
Participant
US Member
Hopefully it hasn’t sucked much of the flaking foam into the carb!

I’d replace the foam – Quiet is nice!
Dave
April 10, 2018 at 12:36 am #73719
shoestringmariner
Participant
quote outbdnut2:

Hopefully it hasn’t sucked much of the flaking foam into the carb!

I’d replace the foam – Quiet is nice!
Dave

My concern as well. It crumbled like sand.

I’d appreciate the quieter option too
April 10, 2018 at 12:55 pm #73739
joesnuffy
Participant
This is what I used on inside a 40HP outboard engine cow about 3 years ago. It has stayed inside very well even where it is mounted upside down. I also used several sheets in layers on-top of one another to help reduce the noise. I just cut it to fit my application then peel off the backing and stick it where I want it. The price wasn’t to bad and enough to do more than one motor normally. Hope that helps,

Joe

https://www.ebay.com/itm/12Pcs-Heat-Shi … 281482674c
Author

Posts