Jabsco
- Thread starter VinPecora
- Start date
SeattleSy#1255
Category 5 Conservative
just did mine...pump fits perfect in stock location...you will have to cut the wires so i'd suggest go get some nice male/female crimps and use those to plug into eachother rather than electrical tape or sauder...also, like jwall said, do your IC lines too...I did mine, but have higher intake temps...Like he said, i'm back to looking over every inch, and think i found a hidden kink hard to see when you put the cche back up...look very close, it is easy to screw up. You shouldn't break anything, its not hard...One think i must do to get the heat exchanger out is once all the bolts are taken out, I have to pull the bumper out a bit for the heat exchanger to come down...on my truck, its a tight fit!
InvisiBill
Active member
http://www.sytyarchives.com/howto/ichose_icpump.php
http://www.techweasel.com/articles/syty/icpump_hose.htm
The Jabsco is even easier, since it's an exact replacement for the stock pump, other than having bare wires on it. You can either run the hoses through the fenderwell, or around the driver side (less likely to kink, but runs over the whole engine). The Jabsco is the first "mod" I did on my Sy, and it was quite easy... When you're refilling the system, make sure you get the air out, or it won't work worth crap. You'll probably have to run the pump awhile then add some more, and repeat a few times. Hotwire the pump too, if you haven't already... The stock ECM doesn't turn it on until it's too hot to do any good.
http://www.techweasel.com/articles/syty/icpump_hose.htm
The Jabsco is even easier, since it's an exact replacement for the stock pump, other than having bare wires on it. You can either run the hoses through the fenderwell, or around the driver side (less likely to kink, but runs over the whole engine). The Jabsco is the first "mod" I did on my Sy, and it was quite easy... When you're refilling the system, make sure you get the air out, or it won't work worth crap. You'll probably have to run the pump awhile then add some more, and repeat a few times. Hotwire the pump too, if you haven't already... The stock ECM doesn't turn it on until it's too hot to do any good.
Depends on who you ask. Everyone seems to have a theory of what works best and why. They started talking so thermonuclear heat transfer properties of equality BS. I am gonna say it doesn't matter. Once I get Datamaster back up and running I may try to switch the hoses on mine to see what works best.
SeattleSy#1255
Category 5 Conservative
I asked somewhat the same question...I got one answer and seems logical!
http://syty.net/phpBB/viewtopic.php?topic=12636&forum=3&2
http://syty.net/phpBB/viewtopic.php?topic=12636&forum=3&2
InvisiBill
Active member
If it comes into the CAC at the top, the coolant will still fall down and flow through even if it's low. If it comes in the bottom, the flow will be aided by the rising of the coolant as it's heated. I have mine running in the bottom and out the top at the moment, but the other way is safer and I doubt the heating of the water adds much to the flow. The stock setup flows into the top and out the bottom of both the CAC and the CCHE.
I capped off the overflow line last week, and made sure it was full. Over the weekend, I checked it after it had been parked for a while and it was quite low. After driving it, I checked again and it actually ran over. Last night after sitting, it was quite low again. This leads me to believe that even though it doesn't get extremely hot, it does get hot enough to cause quite a bit of expansion and contraction. Because of this, you're quite likely to get air bubbles (especially if you haven't capped the overflow). Because of that, I'd say to play it safe and route it into the top of the CAC, until someone can prove that the rising heat adds a noticeable amount to the flow.
I capped off the overflow line last week, and made sure it was full. Over the weekend, I checked it after it had been parked for a while and it was quite low. After driving it, I checked again and it actually ran over. Last night after sitting, it was quite low again. This leads me to believe that even though it doesn't get extremely hot, it does get hot enough to cause quite a bit of expansion and contraction. Because of this, you're quite likely to get air bubbles (especially if you haven't capped the overflow). Because of that, I'd say to play it safe and route it into the top of the CAC, until someone can prove that the rising heat adds a noticeable amount to the flow.