Water leaking past upper motor mounts?

[LakeFever]

Two piece adapter plate running my heat cycles on the hose and I noticed both upper motor mounts have water running out of them. I have 5-7psi water pressure at idle off the muffs and hose. I can’t say I’ve ever seen this before but haven’t really looked that close either. Anything to worry about?

[tlwjkw]

yep there is.. tha plates aren't mating completely or tha mount "pockets" could be wore or wallard out a touch.. if both plate surfaces are completely flat then ya need ta look at tha pockets and motor mounts if they are used pieces..... did you use any type of sealer on tha them?..

[Jim Speros]

I've seen that before. The water tube comes up right between the mounts. There is another thread showing what it looks like with top plate off. He had a different problem but you can see how it can leak like yours.
https://www.screamandfly.com/showthr...ut-top-at-idle

[Jim Speros]

Its easy for the mounts to move while torquing long mount bolts. I would no bounce hit the mount to make sure it was seated in the pocket. I also liked to use perfect seal [Aviation sealer by permatex] on the gasket between the mounts.

[LakeFever]

Damn. Well the good news is the plates are perfectly flat and have zero corrosion. I did use some spray copper on the base gaskets before installing but that was it. I guess some right stuff sealer would probably be in order. I do have an offshore type engine cover so the base plate mounts with two gaskets one above and below which sucks because I only have these two good promarine grey ones that are currently installed. I have spare green ones I could try next I guess. It runs like a champ and doesnt heat up bad at all on the hose I was very pleased with it. Runs damn near perfect really. Ran it twice 30 minutes no issues although it was spewing quite a lot of water out of the idle exhaust relief maybe thats tied to this.

Any other suggestions Im going to pop the power head off and replace these gaskets today

[VkingMike]

I fought with my 2 piece plate wen changing the mid. It took many tries to get it flat with solid mounts

[Jim Speros]

My only other thoughts are, dry fit mounts in plates and make sure they don't need any sizing help. I recall taking a file or sand paper to them in the past.
And support the drive gearcase assembly with a block or something to take any side loads off upper plates while torquing mount bolts.

[LakeFever]

There are two rubber washers in there that I omitted because they were dry rotted. Would that cause this?

[LakeFever]

This little connection was also leaking my vst hose used as a coolant hose was leaking at the back of the plate. Got me wondering if the water from this was running down the pan and out by the mounts. Hmm will investigate

[LakeFever]

Hose did help the pisser but didn’t stop the flood. Tore into it. No impression whatsoever in the mount area. Whacked em with a dead blow hammer and the one especially was definitely not seated properly. Buttoning up and trying again. Hope the green gaskets work ok

[Aaronhl]

Mounts are inbackwards

[Aaronhl]

and yes i do think the rubber rings help with the water, spin the mounts around and youll be able to fit the rubber rings, washer and tighten properly without grabbing the cast plate, too many threads showing on those bolts, usually only 1-2 threads show

[LakeFever]

Hose did help the pisser but didn’t stop the flood. Tore into it. No impression whatsoever in the mount area. Whacked em with a dead blow hammer and the one especially was definitely not seated properly. Buttoning up and trying again. Hope the green gaskets work ok

[skialot2]

Aaronhl is correct. The mounts are in backwards. You need to turn them around. They will fit better and you will get a better seal between the plates.

[LakeFever]

New gaskets and right stuff black and some grey around the water hole and no more leaks, we're back in business. Thanks for the speedy replies today gents. Now back to heat cycling this thing