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  #1  
Old 29-07-19, 09:40
bauduin bauduin is offline
Raphaël
 
Join Date: Feb 2005
Location: Caen- France
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Default Oil pressure relief valve

Hello,

I am looking for the oil pressure relief valve (CTL 645 A assembly) for my carrier.

Does anyone know where to find this part? According to part number, it was a special part for carriers but is there an equivalent part for commercial Ford trucks?

Best Regards,
Raphael
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  #2  
Old 29-07-19, 12:52
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Tony Smith Tony Smith is offline
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Where is that part located in the Carrier Oil system?

In trucks, there are 2 oil pressure valves, one is a component of the Oil Pump and another is located in the Oil Gallery in the block. They are still available for 50# and 80# systems.
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  #3  
Old 29-07-19, 13:55
bauduin bauduin is offline
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It is outside the engine, above the clutch (see picture).
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  #4  
Old 29-07-19, 20:39
Lynn Eades Lynn Eades is offline
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If we call it the oil cooler bypass valve, then others will know what it does.
It allows cold, thick oil to bypass the cooler, but only if it has a p.d. (electrical term= potential difference) of 3.5 pounds (approx)
Sorry I cannot direct you to one, Bauduin.
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  #5  
Old 29-07-19, 21:01
Michael R. Michael R. is offline
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Default Oil cooler

Page 130, Illustration No. 26, FUC-03
Version SE-83-44, Reissued May, 1944.
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  #6  
Old 29-08-19, 10:25
Adrian Mamzer Adrian Mamzer is offline
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Default Ctl 645a

Hi Raphael
I think I have what you are looking for. Give me your email address and I will send you photos of this part.
Best Regards
Adrian
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