280 hot

[300R Ally 2+2]

Changed the water pump housing, plates, impeller and gaskets on my 280. It has the 3/4" and I bought the 1/2" housing-cut it down and drilled it out. When I hit over 5000 rpm's it starts to get hot and the alarm goes off. It didn't overheat before the change.

Any ideas?

Thanks!

Dave:banghead

 

[K.Kiser]

You've cut the plastic impeller housing from 1/2 out to 3/4..?

 

[K.Kiser]

Just a quick guess I'd say it may be leaking pressure before the flow enters your copper down pipe.. Btw, what is your pressure reading..?

 

[suicidealli]

Did you glue the small adaptor to the pump?
Did you use the rubber seal that goes in the small sleeve?

Roy

 

[catfish123]

Roy, can you explain these 2 things, at some point, with pics, for mechanically challenged individuals such as me?..........Thanks :beer:

 

[86voyager]

You cut it down to far, and now the copper tube is not sealing at the bottom. Get a new housing, and cut it exact.

 

[Brack]

Catfish…...

you can take a standard fishing motor w/p housing,……(just as Mother Merc does)
cut 1/2 inch off the neck of the housing,….run a 3/4in. bit down into the neck,……you will need the adapter,….some people glue it on ,…..some dont, slide the 3/4inch seal into the adapter and your good to go,……

thats why the 3/4 inch housing is about a 100 dollar higher than the standard 1/2 housing…..

 

[tomoad]

Check your seal that goes down in your water pump that seals your water tube. Once I had that seal get wadded up blocking half the flow

 

[suicidealli]

Text me I will send pics.
513-207-2131

Roy

 

[Brack]

photo........

 

[whipper]

photo........

Nice I like that idea. Will this work good for even a 225 fishin motor to?

 

[Brack]

no,...unless you change your exhast plate,


I would bet your fish'in motor has the 1/2 tube set-up,....with the 2 peice exhast plate,

I would leave it alone running a steel sleeve motor

 

[chad202]

do yall do anything on the underside? the intake that the pump discharges into is smaller also isn't it?

 

[Brack]

Chad, are you talking the base plate?......its the same,...I do take my dremel and clean up the exit area of the pump housing,




sorry , it wasn't my intention to hi-jack this tread,

 

[h2oskiier30]

do yall do anything on the underside? the intake that the pump discharges into is smaller also isn't it?

This is ONLY for if you have a 3/4" water tube already.

 

[300R Ally 2+2]

Thanks for all the replies! I cut it to the exact length and drilled it out but it may be leaking past the rubber sleeve to the 3/4" copper tube. I didn't glue it and it only over heats when I open it up. I never thought about glueing it. What would you suggest I use so it can still be removed for a replacement?

 

[86voyager]

Are you using the cheap impeller with the plastic hub ? The hub can spin inside the impeller.

 

[300R Ally 2+2]

The hub is brass.

 

[86voyager]

I'm running out of idea's for ya. Any chance you had a brain fart, and turned the drive shaft counter clockwise when seating the new housing over impeller ? BTW I use regular model glue from KMART to glue on adapter. Hope you get it figured out soon, good luck.

 

[suicidealli]

I use PVC glue on top and silicon on the bottom.

Roy