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Old 12-11-2008, 01:23   #1
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Oil Cooler hookup on Perkins 4108

In my never ending challenge to clean and service the cooling system on my 4-108 I went at the oil cooler tonight. Once I have finished cleaning and reinstalling I wonder about how I should hook it up again.

Here's my concern. This exploded diagram of the cooler shows the oil lines connected to the taps on the upper row.


But on mine they were attached to the lower row.


Is this a significant difference?

If attached down below will there be as much flow over the coolant tubing? I think there is enough hose length to reattach on the upper row. Wondering if I should do that?
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Old 12-11-2008, 03:53   #2
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put it back the way it was. The second set of taps was used for a trans cooler.
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Old 12-11-2008, 09:05   #3
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Correct. Either side would probally work. Are you cooling your transmission? Take advantage of it, if you are not.
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Old 12-11-2008, 12:31   #4
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Great! Thanks, guys. I understand now that it is a dual flow cooler.

No, not cooling transmission. Transmission work is coming soon. Before I put the heat exchanger back in I will check out the tranny as best I can. I already see that I should attend to the cable.

(Digital cameras make a lot of the checking out much easier because I can poke the camera back inside things, behind things, shoot a bunch of hirez images and examine them at my leisure. See a lot more than I might notice contorted for several seconds so my head can just poke in for a glimpse.)
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Old 12-11-2008, 20:16   #5
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I love my camera

It is like having and eyball on the end of your finger.....There are some spots on customers' boats that even I can't get into.

They are great for disassembly record


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Originally Posted by Trekka View Post
Great! Thanks, guys. I understand now that it is a dual flow cooler.



(Digital cameras make a lot of the checking out much easier because I can poke the camera back inside things, behind things, shoot a bunch of hirez images and examine them at my leisure. See a lot more than I might notice contorted for several seconds so my head can just poke in for a glimpse.)
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Old 10-01-2009, 08:03   #6
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Perkins Oil Cooler Pipes

Hi Trekka

I was interested in your post about oil cooler pipes on your 4.108.

I have a 4.154 with an identical cooler as far as I can judge from the photos. I also need to renew the piping but cant get original spares from Perkins so am trying to get them made up.

Do you by any chance know what thread types and sizes are used to connect to the Oil Cooler?

I dont want to disconnect mine until I have the new ones in case I damage the old ones and disable the yacht.

thanks
Pete
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Old 13-01-2009, 19:48   #7
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i had a leak in mine looks just like yours the engine oil run thru the bottom and my transmission run thru the top of the heat exchanger
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