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TSchimizzi
10-21-2013, 02:27 PM
I'm winterizing my (new to me) 1990 PS190. On previous boats I have pulled the water inlet hose at the hull and sucked the antifreeze from there. After searching this forum I see a lot of people attaching the hose at the raw water pump, bypassing the transmission cooler. I would prefer to do it this way as its easier to get at and doesn't break the seal at the hull, however I can imagine there is some water lying in the transmission cooler lines.

Which method is recommended?

thatsmrmastercraft
10-21-2013, 02:37 PM
It is best not to bypass the trans cooler. Even though you never put the trans into gear, the pump is still turning and the cooler should still be utilized. I have a 1 1/4" hose (permanently attached to the tub I use) that I connect to the trans cooler inlet. Easy to get to and effective.

thatsmrmastercraft
10-21-2013, 02:38 PM
There is no water in the trans cooler lines, just the trans cooler. The lines contain trans fluid and are sealed from the water.

mikeg205
10-21-2013, 03:13 PM
Just make urself one of these

no more taking the hose off the hull - just the back of the trans cooler...

prostar205er
10-21-2013, 03:28 PM
Just make urself one of these

no more taking the hose off the hull - just the back of the trans cooler...

So where exactly do you attach that Mike? Do you place that on the intake end of the pump (after removing the other end of the hose that is attached to the hull)?

mikeg205
10-21-2013, 03:51 PM
So where exactly do you attach that Mike? Do you place that on the intake end of the pump (after removing the other end of the hose that is attached to the hull)?

I attach it to the rear inlet on the trans cooler. I hate taking off the hose attach to the hull.

bigmac
10-22-2013, 01:33 PM
I'm winterizing my (new to me) 1990 PS190. On previous boats I have pulled the water inlet hose at the hull and sucked the antifreeze from there. After searching this forum I see a lot of people attaching the hose at the raw water pump, bypassing the transmission cooler. I would prefer to do it this way as its easier to get at and doesn't break the seal at the hull, however I can imagine there is some water lying in the transmission cooler lines.

Which method is recommended?

I suspect that the transmission cooler is downstream from the pump on your boat. Attaching to the RW inlet wouldn't bypass the cooler.

As to the transmission cooler lines, there are none that contain water. Transmission oil is circulated through the cooler. The water path out of the RW pump through the cooler is just a straight 1 1/4 inch shot. The cooler is vertical...should self-drain promptly.

bochnak
10-22-2013, 01:49 PM
If the trans is in neutral, it is not going to generate enough heat to need that cooler hooked up. You can verify by grabbing the cooler from time to time to monitor temp.

If you are running for an extended period of time, then yes, I would hook it up to cooler.

mikeg205
10-22-2013, 04:56 PM
If the trans is in neutral, it is not going to generate enough heat to need that cooler hooked up. You can verify by grabbing the cooler from time to time to monitor temp.

If you are running for an extended period of time, then yes, I would hook it up to cooler.

why worry - ;) just hook it up and forget it... the MCOCD is not strong with you yet Bochnak... lol

soacj
10-22-2013, 06:55 PM
I suspect that the transmission cooler is downstream from the pump on your boat. Attaching to the RW inlet wouldn't bypass the cooler.

Raw water inlet feeds the trans cooler (does a fine job filtering out debris...) and then goes to the pump.

bochnak
10-23-2013, 09:19 AM
why worry - ;) just hook it up and forget it... the MCOCD is not strong with you yet Bochnak... lol

LOL...sounds like I'll be getting there soon!

bigmac
10-23-2013, 12:22 PM
Raw water inlet feeds the trans cooler (does a fine job filtering out debris...) and then goes to the pump.

I guess those things were set up differently on those older MasterCrafts.