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-   -   Molded bypass hose from recirc pump. Source? (https://www.offshoreonly.com/forums/do-yourself-boating-budget/356568-molded-bypass-hose-recirc-pump-source.html)

Baja Rooster 09-10-2018 11:52 AM

Molded bypass hose from recirc pump. Source?
 
This seems like it would be a common problem but a search didn’t pop up any immediate info.

My new airgap intake is much taller taller than the stock unit so that little hose is too short. Anyone know where to get 3/4” hose with a 90* bend?

Baja Rooster 09-10-2018 11:55 AM


F-2 Speedy 09-10-2018 11:56 AM

your local auto parts will have the same thing, cut to fit

GLENAMY 242SS 09-10-2018 12:02 PM

The one I got at O'rileys was long enough, in fact it needed trimming. The real problem I had was the hoses from the thermostat housing to 1) recirculating pump 2) to oil cooler. I ended up getting double barbed straight S/S fittings for both and trimming 2 hoses for each to avoid kinking at bends.
Good luck.

SB 09-10-2018 02:52 PM

I don't use one. Most t-stat housings do the same thing. IE: have a bypass within them

So....what do you have for a t-stat housing ?

Baja Rooster 09-10-2018 03:16 PM


Originally Posted by F-2 Speedy (Post 4648383)
your local auto parts will have the same thing, cut to fit

Have you been to my local auto parts store?

https://cimg2.ibsrv.net/gimg/www.off...d23504502.jpeg

Baja Rooster 09-10-2018 03:18 PM


Originally Posted by SB (Post 4648441)
I don't use one. Most t-stat housings do the same thing. IE: have a bypass within them

So....what do you have for a t-stat housing ?

stock Merc MPI thingy. Four ports; big recirc pump, header hoses, freshwater intake.

F-2 Speedy 09-10-2018 04:35 PM

My local Vato zone just points me in the general direction and lets me go find it.....lol

SB 09-10-2018 05:33 PM


Originally Posted by Baja Rooster (Post 4648451)


stock Merc MPI thingy. Four ports; big recirc pump, header hoses, freshwater intake.











If it's the tpical housing in diagram below:
That housing recirculates water back down to the inlet of the recirc pump (amogst other thigs) so that bypass hose is not needed.
If the pipe is threaded in the recirc pump, unthread it and put in a brass pipe plug. :)

https://www.mercruiserparts.com/Merc...MMON/39675.gif

Baja Rooster 09-10-2018 05:52 PM


Originally Posted by SB (Post 4648480)
If it's the tpical housing in diagram below:
That housing recirculates water back down to the inlet of the recirc pump (amogst other thigs) so that bypass hose is not needed.
If the pipe is threaded in the recirc pump, unthread it and put in a brass pipe plug. :)

https://www.mercruiserparts.com/Merc...MMON/39675.gif

Thats the critter! I noticed two ports in the housing feeding the thermostat so that makes sense. I just have to remember to install the thermostat the right side up :p. Thanks.


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