Hi everyone,

I noticed an extra part on my 240D and after researching I learned it is a FPHE (frame plate heat exchanger). If my research is correct these are used to heat higher viscosity fuels such as vegetable oil. So far I have been running diesel fuel through my car.

At this time I'm more interested in restoring the engine to it's off the assembly line condition. That means with time constraints I won't be running vegetable oil through the car. I would like to remove the FPHE but I wanted to check first and see if anyone had any comments on what effect that might have. I was also hoping that someone more experienced than myself may be able to confirm it was put in for running alternative fuels and wouldn't have been put in for another reason.

Here are some pictures of the modification job that a previous owner did. They bypassed the heating water connections over to the FPHE. My plan is just to remove the tee's and purchase the original hoses.

Thanks!

Attached Thumbnails

   

__________________
1983 240D Manual Transmission
123.123 - 616.912

As far as I can tell, the tee's were cut into part #32 and #8 in the diagram below. Part no's:

8: 1238328094 or 1238321094 (Feed)
32: 1238321694 (Return)

These are the replacement parts I was planning on ordering since the original ones have been cut to place the tees

Attached Thumbnails

 

__________________
1983 240D Manual Transmission
123.123 - 616.912

So far the only reason I can find to have a frame plate heat exchanger is for running SVO and other alternative fuels. According to uncle Kent it is not ideal when running diesel. Does that line up with everyone else's experience?

__________________
1983 240D Manual Transmission
123.123 - 616.912

Let me know if you'd like to sell the fphe.

__________________
CC: NSA

All things are burning, know this and be released.

82 Benz 240 D, Kuan Yin
12 Ford Escape 4wd

You're four times

It's hard to

more likely to

concentrate on

have an accident

two things

when you're on

at the same time.

a cell phone.

www.kiva.org It's not like there's anything wrong with feeling good, is there?

Are FPHEs ever installed to help with cold winters?

__________________
1983 240D Manual Transmission
123.123 - 616.912

60x motors do, I remember one on my 190D.

http://www.peachparts.com/shopforum/diesel-discussion/235064-om601-diesel-fuel-heater.html

__________________
CC: NSA

All things are burning, know this and be released.

82 Benz 240 D, Kuan Yin
12 Ford Escape 4wd

You're four times

It's hard to

more likely to

concentrate on

have an accident

two things

when you're on

at the same time.

a cell phone.

www.kiva.org It's not like there's anything wrong with feeling good, is there?