Perkins/Manicooler Thermostat

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Pack Mule

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I’m thinking my thermostat may be sticking. I’m looking to change it out. I have the 6.3544 model NA with the manicooler. Is there just one thermostat or two?
The book says it’s just one and it’s under the thermostat housing neck on top that’s headed towards manicooler and when changing out make sure to intstall one that is a bypass thermostat.
When I go to order thermostat, the Perkins people (Diesel Parts Direct) says that it takes two. Has anyone changed one out with the MANICOOLER and not the multicooler? The book says the multicooler takes two and they’re in a different housing that is below this neck. Here is a picture of the neck on mine.
 

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I have a Perkins 6.354 -- not a 6.354.4. But, I do have a Boman Manicooler.

It has only one thermostat. See the instructions linked below:
-https://drive.google.com/file/d/1VBBCJvp6gDj6DJNgv20m0KnN5u3QKiSd/view?usp=drivesdk

Cheers!
-Greg
 
I have a Perkins 6.354 -- not a 6.354.4. But, I do have a Boman Manicooler.

It has only one thermostat. See the instructions linked below:
-https://drive.google.com/file/d/1VBBCJvp6gDj6DJNgv20m0KnN5u3QKiSd/view?usp=drivesdk

Cheers!
-Greg
Thanks Greg but I couldn’t get the link to work.
 
Thanks that worked. Now I just need to order right thermostat and gasket. Maybe order from TAD if they carry it and it’s a large enough order.
Thanks again
 
TAD says they have a minimum order of $50, or something like that. But their "fine" for a small order is only a $10 handling fee.

When I've needed $2 gaskets fast -- I've just paid the $10. It was a small drop in the bucket, especially next to what FedEx charged!
 
I ordered thermostats and gasket from TAD today. When I told them what my set up was with the Manicooler, they new exactly what thermostats and gasket I needed and yes there are two thermostats. They are under the thermostat housing with the neck on it that’s headed toward Manicooler. I just wanted to make sure I had right parts on hand before working on it . When you only have weekends to boat you don’t want to waste any time waiting for parts.:D
Here is my exact engine with Manicooler set up . I think the multicooler has the thermostats in a housing that’s bolted to front of cooler.
 

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