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Marine Crusader D170 (Detroit Diesel ...

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pcuypers
New member
Username: pcuypers

Post Number: 1
Registered: 07-2010
Posted on Monday, July 12, 2010 - 03:21 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Hello,

I have 2 marine crusader D170 engins in our boat.
They are Detoit Diesel D478 with a modifyd cooling system done by Marine Crusader.

The previous owner has removed the thermostats from both engines.

I found in the manuels that these where "controled by-pass thermostats).

Ho can help us o find the correct type or a supplier. Marine crusader can't help us, the motors are to old for them !

Best regards,
Patrick

you can mail to : pcuypers@telenet.be
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larry_from_md
Member
Username: larry_from_md

Post Number: 8
Registered: 06-2010
Posted on Monday, July 12, 2010 - 12:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Those were used on truck and power unit engines allso. They are allso useually a common part. You can try a GM truck dealer or an engine dealer like cummins and bricker(don't count on the spelling being correct.)
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larry_from_md
Member
Username: larry_from_md

Post Number: 9
Registered: 06-2010
Posted on Monday, July 12, 2010 - 01:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I have seen 2 differant designs the more common one could be ordered by size and temp from many parts places.
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pcuypers
New member
Username: pcuypers

Post Number: 2
Registered: 07-2010
Posted on Monday, July 12, 2010 - 11:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

It's not the same thermostat as the one used on the truck or generator version.

Marine crusader has changed the cooling to work with a heat exchanger and a bypass thermostat so the motor can warmup more quickly.

If i can't get the correct thermostat, i shal order a few types and try if they fit.

Tanks for the quick respons.
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pcuypers
Member
Username: pcuypers

Post Number: 4
Registered: 07-2010
Posted on Sunday, August 08, 2010 - 02:38 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

problem solved, it's a bypass thermostat and i found 2 originals and 2 from gates

The BB-motor is now running stable at 80gr.C and the SB-motor at 65gr.C witch is a bit on the low side.
but the left cilinder gasket is not 100%

Planed replacment of headgasket : november 2010

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