Having trouble with circ pump hose with RPM AirGap
#1
Having trouble with circ pump hose with RPM AirGap
I was planning to run an Edelbrock RPM AirGap intake with the stock Merc circ pump and hoses, and the taller T-stat boss puts the T-stat housing too high up for the hose to reach. I have circled the issue in yellow. I'm sure someone out there who is using this intake has run into the same problem. Did you find a longer hose, modify the existing one, stretch it and hope for the best...?
Also, can the bypass (arrow) between the intake and circ pump be eliminated? What is it's function?
Also, can the bypass (arrow) between the intake and circ pump be eliminated? What is it's function?
#2
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Fixx
you can cut the hose and add a piece of ss tubeing the it..order a longer hose, i believe either tall deck sc engine or a bull dog is longer..or add a SS hose from jeggs and dress it up a bit..the one that goes from the water pump to under the t-stat housing,go to your local auto parts store and match one up and cut it to legnth.
http://www.jegs.com/i/JEGS+Performan...11231/10002/-1
http://www.jegs.com/i/JEGS+Performan...11231/10002/-1
#3
Thanks - I'll probably just cut it and extend it. No point in adding anything fancy - it's hidden behind the back seat.
Can the bypass hose between the intake and the water pump be eliminated? It's too short too. I noticed the HP500/Dart intakes don't even have provisions for this.
Can the bypass hose between the intake and the water pump be eliminated? It's too short too. I noticed the HP500/Dart intakes don't even have provisions for this.
#6
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hmm, glad you posted this as i will be putting that exact same intake on mine ove the weekend and i had a feeling those hose issues might appear.
does anyone have part numbers for those 2 hoses that would be longer to fit this higher intake properly??? i dont really want to splice in sections of hose as that just adds more fittings that can possibly leak.
thanks!
does anyone have part numbers for those 2 hoses that would be longer to fit this higher intake properly??? i dont really want to splice in sections of hose as that just adds more fittings that can possibly leak.
thanks!
#7
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525SC hose works perfect. If you splice the existing hose, make sure whatever insert you use is barbed and double clamp it. Otherwise you'll be washing your engine compartment down on a regular basis.
Last edited by Knot 4 Me; 05-26-2011 at 10:40 AM.
#9
Charter Member # 55
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As said by others you can cut and splice the large hose or use a factory 525SC Hose.
Part 19 http://www.mercruiserparts.com/Show_...MOSTAT+HOUSING
Part 19 http://www.mercruiserparts.com/Show_...MOSTAT+HOUSING
#10
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As for the small hose I just went to an auto parts store and they let me go back and look at the hoses. I found one the right diameter that had a 90* bend in it but was long on both sides and then I cut it down to the size I needed.