AZ_MB 436 Posted August 5, 2015 Report Share Posted August 5, 2015 Are you connecting the line for water cooling or just capping it off? I wonder what the new factory setup is? Quote Link to post Share on other sites
Mucker626 2,376 Posted August 5, 2015 Report Share Posted August 5, 2015 Defiantly using it. Mine is tied into the tranny cooler strbd side of engine. Indmar 350 Quote Link to post Share on other sites
mxvet 977 Posted August 5, 2015 Report Share Posted August 5, 2015 2015+ boats have a different seal that is water cooled. Quote Link to post Share on other sites
AZ_MB 436 Posted August 5, 2015 Author Report Share Posted August 5, 2015 2015+ boats have a different seal that is water cooled. I thought they were using the OJ seal. What do they have? Quote Link to post Share on other sites
Shawndoggy 1,452 Posted August 5, 2015 Report Share Posted August 5, 2015 Defiantly using it. Mine is tied into the tranny cooler strbd side of engine. Indmar 350 Isn't that negative pressure (i.e. suction)? I'd think you would want the water line from the pressurized side of the pump. Quote Link to post Share on other sites
oldsmobiledriver 2,713 Posted August 5, 2015 Report Share Posted August 5, 2015 Pressurized side is hot which is the down fall and my short houred seal is leaking so that's a fail... My thought is as long as any water comes from the tranny line which like you said Shawn is not pressured will still drip some cold water to the inside which is better than nothing since it still functions while capped off completely. Quote Link to post Share on other sites
Shawndoggy 1,452 Posted August 5, 2015 Report Share Posted August 5, 2015 If the pump is powerful enough to suck raw water through the big hole in your tranny cooler to cool your boat at WOT, why would it not be powerful enough to suck water through the little hole? There's no issue with the water being hot AFAIK, isn't that what it's designed to use? Quote Link to post Share on other sites
Mucker626 2,376 Posted August 5, 2015 Report Share Posted August 5, 2015 Isn't that negative pressure (i.e. suction)? I'd think you would want the water line from the pressurized side of the pump.That's where the dealer put it. It's on the pressure side of the impeller. Maybe engine oil cooler? Definatly a oil cooler of some sort. Quote Link to post Share on other sites
Shawndoggy 1,452 Posted August 5, 2015 Report Share Posted August 5, 2015 That's where the dealer put it. It's on the pressure side of the impeller. Maybe engine oil cooler? Definatly a oil cooler of some sort. Ahhh... I'm thinking PCM, where tranny cooler is on suction side. For those of you with indmar or other with tranny cooler after raw water pump that makes more sense. Quote Link to post Share on other sites
oldsmobiledriver 2,713 Posted August 6, 2015 Report Share Posted August 6, 2015 I have PCM but TXMC said Mastercraft had it on the hot hose and a lot of them had to be warrantied. Mine is currently on hot side. Shawndoggy 1 Quote Link to post Share on other sites
AZ_MB 436 Posted August 23, 2015 Author Report Share Posted August 23, 2015 Finally got this finished up. Big thanks to oldsmobiledriver for explaining things to me and letting me call him when I had questions. First time I've worked on a boat so it's a big help. Here are pics of the cooling line. Is this where yours is Mucker? Quote Link to post Share on other sites
SkySki 251 Posted August 23, 2015 Report Share Posted August 23, 2015 Is that clear line heat rated high enough? Quote Link to post Share on other sites
Mucker626 2,376 Posted August 23, 2015 Report Share Posted August 23, 2015 No. Mine is off the oil cooler just below that. There is a pipe thread port there. It's being cooled right off of the impeller with cold water Quote Link to post Share on other sites
AZ_MB 436 Posted August 23, 2015 Author Report Share Posted August 23, 2015 Is that line heat rated high enough? High enough for the water temp or do I have it too close to the catalytic converter? There weren't too many options to secure the line. No. Mine is off the oil cooler just below that. There is a pipe thread port there. It's being cooled right off of the impeller with cold water So you didn't need the T fitting? I didn't notice a port there. Just a hard plastic line. Quote Link to post Share on other sites
SkySki 251 Posted August 23, 2015 Report Share Posted August 23, 2015 I don't know the specs on that line, but I would go with a heater hose. That line will fog up as soon as hot water goes through it anyway. It looks like it is on the valve cover and yes, close to the header. Is it rated for the pressure? Quote Link to post Share on other sites
AZ_MB 436 Posted August 23, 2015 Author Report Share Posted August 23, 2015 I don't think it's rated, but it came with the seal and the instructions say to install it on the pressure side of the pump. That's really the first place after the impeller that I could splice the T fitting. I could route the clear tube over the intake manifold, but there isn't much to secure the line to. Quote Link to post Share on other sites
Mucker626 2,376 Posted September 16, 2015 Report Share Posted September 16, 2015 Here is where my oj is tied in at. Starboard front of engine. 350 Indmar Quote Link to post Share on other sites
steve142 782 Posted September 16, 2015 Report Share Posted September 16, 2015 mine also Quote Link to post Share on other sites
oldsmobiledriver 2,713 Posted September 17, 2015 Report Share Posted September 17, 2015 And that's before the impeller? Is that the tranny cooler we are seeing? Quote Link to post Share on other sites
Mucker626 2,376 Posted September 17, 2015 Report Share Posted September 17, 2015 It's directly after the impeller. Fresh water goes thru the tranny cooler then to the water pump Quote Link to post Share on other sites
Mucker626 2,376 Posted September 17, 2015 Report Share Posted September 17, 2015 Here's a better photo. The top of the picture is the out connection of the impeller housing. Then it goes thru the hardline to the bottom of the photo then back up the front of the motor over to the water pump. Quote Link to post Share on other sites
AZ_MB 436 Posted September 21, 2015 Author Report Share Posted September 21, 2015 Thanks for the pics. I'll have to look for that brass fitting. Is it normally just capped off? So far my current setup is working well. The water line doesn't feel too warm and I don't have any leaks. oldsmobiledriver 1 Quote Link to post Share on other sites
Mucker626 2,376 Posted September 21, 2015 Report Share Posted September 21, 2015 I would say it would be a painted black plug. Brass is the new fitting. Quote Link to post Share on other sites
oldsmobiledriver 2,713 Posted September 21, 2015 Report Share Posted September 21, 2015 AZ_MB had a better option than I did on my PCM so I may need to tap my raw water pump and put a fitting in!!! Quote Link to post Share on other sites
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