How to check oil in my transmission?

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Steve91T

Steve91T

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Joined
Sep 12, 2016
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898
Location
USA
Vessel Name
Abeona
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Marine Trader 47’ Sundeck
Is this a vent or the dipstick? I can’t find anything that looks like a dipstick.

I’m sorry for the dumb question. I’m sure someone will point it out and it’ll be obvious. But we’re getting ready to head out and I can’t find the damn thing.
 

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Looks like a vent to me.
 
Just took these...any ideas?
 

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Second picture, bottom left. Just to the right of that small hose clamp.
 
Yeah, bottom picture at the very bottom just to the right of the hose clamp. Is that a loop?
 
I thought that thing was a lifting point. Maybe not. I’ll give it a twist in a few and let you guys know.
 
Are those PRM transmissions? Mine have a socket welded to the plug that has a dipstick on the bottom of the plug. The first photo is a vent.
 
High Wire said:
Second picture, bottom left. Just to the right of that small hose clamp.
Click to expand...

Once you find it, paint it yellow (or a color of your choice, ummm, errr, any color but red) so you don't forget.
 
Here is a photo of my transmission. The dipstick has a socket welded to it. It is just to the left of the curved oil cooler hose.
 

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I think I found the bolt that is the dipstick. It’s in the same place as Comodaves and the bolt looks worn. I bet that’s it. I’ll remove it in the morning and see what I see.

I never thought it’d be so difficult to find a dipstick!
 
I think that is why they welded sockets on mine, so you can just put a rachet on it and loosen the dipstick. Unfortunately they put a 1/2” drive socket on one transmission and a 3/8” drive socket on the other. Would it not make sense to use the same size drive on both???
 
Comodave said:
I think that is why they welded sockets on mine, so you can just put a rachet on it and loosen the dipstick. Unfortunately they put a 1/2” drive socket on one transmission and a 3/8” drive socket on the other. Would it not make sense to use the same size drive on both???
Click to expand...

Haha. That’s hilarious. Great idea, terrible execution.
 
You have to love POs, give you something to keep you busy. Also makes you say Hmmm.
 
What oil do you run in your PRM transmission? PO was using 30 weight but I saw somewhere that it should be 15W40.
 
Here you go.
 

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Comodave said:
What oil do you run in your PRM transmission? PO was using 30 weight but I saw somewhere that it should be 15W40.
Click to expand...

Sorry Comodave but this is where the classic response is valid. Dont take me too negative.
Dont think, READ and follow the docs.
 
Perhaps an example of Engineer vs End User?
 
Found them! Thanks guys. Never thought the dipstick would be an unassuming bolt.
 

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Hark, another problem solved via the vast knowledge of the folks on this system.
 
OldDan1943 said:
Hark, another problem solved via the vast knowledge of the folks on this system.
Click to expand...

So true. Everyone asks me how I know how it works on cars, boats, houses. I don’t actually, but the internet does!
 
So was the oil level ok? First time you checked it?
 
Ski in NC said:
So was the oil level ok? First time you checked it?
Click to expand...

Yep it was fine in both. First time I’ve checked. They were checked during the sea trial when I bought it end of last year. I’ll be checking them more often. Kinda figured they were like your car transmission, you really don’t check often unless you see a leak.
 
OldDan1943 said:
Sorry Comodave but this is where the classic response is valid. Dont take me too negative.
Dont think, READ and follow the docs.
Click to expand...

Well I would read the docs IF I had them, unfortunately the PO didn’t have owners manuals for most of the equipment on the boat. They had been using 30 weight oil so I have continued using it but thought maybe someone had better info.
 
Checking more frequently would be good, especially if an oil cooler is installed.
 
Steve91T said:
Yep it was fine in both. First time I’ve checked. They were checked during the sea trial when I bought it end of last year. I’ll be checking them more often. Kinda figured they were like your car transmission, you really don’t check often unless you see a leak.
Click to expand...
Nope...most have salt water cooled coolers so you are checking for water intrusion (milky) as much for low level.
 
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