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So I've rear mounted my radiator for approach angle improvement.. i used a combination of exhaust pipe and hydraulic hose for the coolant and it works great except during long periods of idling and crawling on steep inclines.. normal cruising between trails engine temp is around 180.
if i rev the engine up to say 1000 rpms it cools very quickly and all's well so my current thinking is that the stock water pump can't keep up. i've done some searching and the only hi flow pump i can find for the 4.0 is made by flowkooler and is a little over $100.
are there other hi flow units available? is anybody running one or a similar setup to mine?
here's another one that is listed as high volume
http://www.summitracing.com/parts/GMB-110-1080P/
are you 100% sure your system is fully bled?
Last edited by ATL ZJ; 05-04-2010 at 10:13 AM.
thats a little easier to afford, im pretty sure this will solve my problem.
im pretty sure im getting it bled well by taking the hoses loose at each end and filling the system from both ends. i think im going to try to install a bleeder at the front of the motor somehow so i can periodically bleed it easily
Last edited by zjeepin; 05-04-2010 at 10:18 AM.
i do like the theory of the flowkooler one..
FWIW, I had the flowcooler one a few of years ago and last year I swapped to the Hesco. The Hesco is made with higher quality impeller (CNC machined).
http://www.hesco.us/shop.asp?action=...917&catId=7967
I doubt it, but I will take a look around...
it'd be sweet if you had it
you can just order the flowkooler plate and rivet it to a stock pump for even more flow than a "high flow"
well it seems that summit quit selling them or something....
go here for pics of what I was talking about:
http://www.mallcrawlin.com/forum/sho...t=3556&page=14
EDIT: I missed the part about the rear mounted rad, MAKE REAL sure that there is no air stuck in the lines etc.
so if i do some r&d on this plate how many of you would be interested in one? it would be just as easy for me to make 10 as it would 1...
Last edited by zjeepin; 05-05-2010 at 11:41 AM.
I have this same plate somewhere in my garage (for when my pump goes bad again) that I can put a micrometer on and get exact specs.... just need to find it
I do have some pictures I found of the Hesco unit. For some reason I was holding a tape measure to it instead of my vernier, but I have them if any one is interested.
my bro ran the Hesco unit and still had heating issues.... that is why we went the Flowkooler plate route and noticed a instant change.
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