[MBZ] Would like to use smaller fan belt and bybass AC pulley. What size do I need? For 1987 300D turbo

2006-06-27 Thread RICHARD FIne 
I would like to bypass my AC compressor and use a smaller fanbelt that will not 
attach to the AC compressor pulley. My system does not work, and would rather 
get the somewhat improved mileage.

Thanks,

Richard
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Subject: Re: [MBZ] Would like to use smaller fan belt and bybass AC pulley.
What size do I need? For 1987 300D turbo
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 I would like to bypass my AC compressor and use a smaller fanbelt that
 will not attach to the AC compressor pulley. My system does not work,
 and would rather get the somewhat improved mileage.

I would think that in Yakima that AC would be somewhat desirable.
What's wrong with it?

Anyway, assuming nobody can look up the belt length you need you
could always take a string and run it around the new path and measure
the length.  Try to put the tensioner in the normal place first,
or account for it somehow.  You might be able to use string to measure
between two fixed points along the belt path that includes the AC
pulley, then stretch a chord that excludes it, then take the difference
and subtract that from the stock length.

However, I don't think that the 'load' of an uncoupled AC compressor
would even be noticeable at the fuel pump.  Certainly not enough to
even pay for the new shorter belt, IMHO.

-- Jim

Re: [MBZ] Would like to use smaller fan belt and bybass AC pulley. What size do I need? For 1987 300D turbo

2006-06-27 Thread David Brodbeck 
Jim Cathey wrote:
 However, I don't think that the 'load' of an uncoupled AC compressor
 would even be noticeable at the fuel pump.  Certainly not enough to
 even pay for the new shorter belt, IMHO.
   

I don't think so, either...I think the only reason to do this would be
if the A/C compressor clutch's bearings were failing.

Re: [MBZ] Would like to use smaller fan belt and bybass AC pulley. What size do I need? For 1987 300D turbo

2006-06-27 Thread John Berryman 


On Jun 27, 2006, at 2:08 AM, RICHARD FIne wrote:

I would like to bypass my AC compressor and use a smaller fanbelt  
that will not attach to the AC compressor pulley. My system does  
not work, and would rather get the somewhat improved mileage.


Thanks,

Richard


	A 603 engine without AC from the factory uses a 2080mm belt. I don't  
know if the layout is the same but just missing the compressor.
	What fuel saving are you attempting to realize by omitting the  
compressor. It acts as an idler pulley when the compressor clutch is  
disengaged.


Johnny B.
I Mac Therefore I am

Re: [MBZ] Would like to use smaller fan belt and bybass AC pulley. What size do I need? For 1987 300D turbo

2006-06-27 Thread Marshall Booth 

RICHARD FIne wrote:

I would like to bypass my AC compressor and use a smaller fanbelt that will not 
attach to the AC compressor pulley. My system does not work, and would rather 
get the somewhat improved mileage.


And exactly what car/year do you own that uses power and fuel when the 
AC compressor isn't engaged?


Marshall
--
  Marshall Booth (who doesn't respond to unsigned questions)
  der Dieseling Doktor [EMAIL PROTECTED]
'87 300TD 182Kmi, '85 190D 2.0 161Kmi, '87 190D 2.5 turbo 237kmi, '84 
190D 2.2 229Kmi (retired)