Longer hose needed after intake swap
 

Got a buddy with a '97 29' Powerquest with twin 7.4L motors. He recently had the local marina wrench swap out the stock boat anchor intakes for a set of Edelbrock RPM Air Gap intakes. The molded hoses that run from the engine water pump to the thermostat housing are now too short. To lengthen the hoses the mechanic cut the hoses in half and placed in a section of plastic tubing. This solution has proven to be problematic with the connection constantly coming loose. For those that have made this swap before, will the 454 MAG hose be long enough to fit without cutting? See the diagram below and look at part number 13 which lists two different part numbers for the hose in question.

http://www.mercruiserparts.com/Show_...ARD+COOLING%29

This have been covered several posts. The advise I got when I did my was simple.. I went to Home Depot and bought a steel 3 inch pipe threaded on both ends. Cut the hose in half and put two hose clamps on it.

I never thougth about plastic pipe, I would think that would work fine if you get the clamps tight.

That is his main problem...the plastic pieces the guy put in are too short and cannot be double-clamped so they keep working loose. The threaded pipe is a good idea. Still, if the 454 MAG hose would work then having a one-piece hose would be the ideal solution.

Thanks.

post 89 http://www.offshoreonly.com/forums/s...t=92301&page=3

Thanks, Rob! That piece would work perfect. Do you remember where you got it from?

Jeff

It was Mississippi Rubber here.they are a hyd hose place so you should beable to find it local.It looked cast and cad plated or galvinised, so I would ck it yearly if in salt, its was around 7.00. I can take a better pick if ya need, its in the boat. I think it was around 4 inched long,

also remember that most of these type places say that they have stainless steel hose clamps, but the screw is steel. I also got some that were 9/16 wide(Norton 300 stainless) ,gripped more

FYI. For those making this swap that do not want to splice the exisitng hose a hose for a 525SC fits perfect.

Can you post the part number and where you ordered it from?

How much is this going to set me back to replace
my iron pipe:eek:

I was wondering if that might work

Merc part #32-822524 about $48

http://www.mercruiserparts.com/Show_...mostat+Housing

I went to an auto parts store with the stock Merc hose in hand and asked the kid behind the counter to find me a hose that was longer. Quick and just a few bucks ............