Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #16  
Old 06-13-2003, 05:11 AM
Registered User
 
Join Date: Nov 2000
Location: Mustang, OK
Posts: 509
Yeah, but if you did a thought experiment of Einstein owning a car, it'd be a Mercedes (preferably a Diesel).

Sholin (Head'n over to open discussion) in Mustang
__________________
What else, '73 MB 280 SEL (Lt Blue)
Daily driver: '84 190D 2.2 5 spd.
Reply With Quote
  #17  
Old 06-13-2003, 06:10 AM
MS Fowler's Avatar
Registered User
 
Join Date: Jan 2003
Location: Littlestown PA ( 6 miles south of Gettysburg)
Posts: 2,208
Higher physics aside,......

Years ago, I had a 504 Peugeot (gas) that had a clutched fan. The bearing went bad and the fan started to eat the radiator. I was on vacation with no real access to tools. I ended up bridging across the front surface of the fan with a large washer. This effectively remove the clutch and drove the fan full time. Aside from more noise, I can't recall any bad effects. I don't believe the effect on mileage was calculable in the real world. I drove it that way for a long time.
As for the fan coming apart at high rpm.....yeah some SB chevies do this. But they wind up real high. The engine in question on this thread is a DIESEL! I seriously doubt that it will see the 10,000 plus rpm needed to pull the fan apart!
Reply With Quote
  #18  
Old 06-13-2003, 07:55 AM
Registered User
 
Join Date: Nov 2002
Location: Wakefield, RI
Posts: 2,145
Interesting topic, there are several possibilities I can think up:
1. Replace defective fan clutch with new/aftermarket=maybe expensive?
2. Replace with a boneyard unit=cheap but may not be any better
3. Hot wire the Aux. fan with a switch so you can turn it on as needed=cheap, maybe it'll keep up, maybe not....
4. Replace with aftermarket electric fan=Some electric fan kits under $80 from Hayden, Permacool, etc.
5. Replace with electric fan from boneyard. Lots available, controll with aftermarket thermostatic relay @$30
6. Replace with solidly mounted "flex fan". Commonly used by the hotrod crowd these fans are fairly cheap and supposedly "flex" at high rpm to reduce drag on engine if that is a concern. They are also made to spin at very high rpm without coming apart. @$60

I would recommend against wiring up the stock fan clutch. I had a fan clutch fail on a truck and the fan went through the radiator. Not a good day.

Leathermang, maybe the fan on your 240 is spinning in the wrong direction, pushing the air out the front and slowing you down......

RT
__________________
When all else fails, vote from the rooftops!
84' Mercedes Benz 300D Anthracite/black, 171K
03' Volkswagen Jetta TDI blue/black, 93K
93' Chevrolet C2500HD ExCab 6.5TD, Two-tone blue, 252K
Reply With Quote
  #19  
Old 06-13-2003, 10:53 AM
Registered User
 
Join Date: Sep 2001
Location: central Texas
Posts: 17,277
RT, that is something good to check,, SOMETHING is slowing me down....
Reply With Quote
  #20  
Old 06-13-2003, 10:58 AM
Registered User
 
Join Date: Jan 2003
Location: Epsom Downs, England
Posts: 152
leathermang,

It's definately worth checking, mine seemed to have acquired another 50 BHP when I fixed the seized fan.

It was a lot quieter too.
__________________
Paul Gibbons
'93 320CE
'73 Jensen Interceptor (Resting)
Giant Full Sus Mountain Bike
Reply With Quote
  #21  
Old 06-13-2003, 11:16 AM
Registered User
 
Join Date: Nov 2002
Location: Wakefield, RI
Posts: 2,145
Leathermang,
Actually, removing the fan on your 240 "might" make a noticeable difference. Engines with high parasitic drag and low HP (240D's w/fixed fans) benefit the most from removal. A nice HD electric fan setup from Derale, etc. may be just the ticket for 240 owners. 0-60 before-n-after times are expected here. I have a spare calendar I can loan you to time the car with. LOL, RT
__________________
When all else fails, vote from the rooftops!
84' Mercedes Benz 300D Anthracite/black, 171K
03' Volkswagen Jetta TDI blue/black, 93K
93' Chevrolet C2500HD ExCab 6.5TD, Two-tone blue, 252K
Reply With Quote
  #22  
Old 06-13-2003, 12:07 PM
Registered User
 
Join Date: Sep 2001
Location: central Texas
Posts: 17,277
I have mixed feelings about removing the fan and depending on electricity , my sworn enemy.... I like the mechanical safety cushion which diesels have... where it could get home if you can push start, battery stolen, etc.....
Reply With Quote
  #23  
Old 06-13-2003, 01:57 PM
Registered User
 
Join Date: Nov 2002
Location: Wakefield, RI
Posts: 2,145
Hey, at least we don't have to deal with "Lucas, The Lord of Darkness" like the poor Brit-car buggers have to. RT
__________________
When all else fails, vote from the rooftops!
84' Mercedes Benz 300D Anthracite/black, 171K
03' Volkswagen Jetta TDI blue/black, 93K
93' Chevrolet C2500HD ExCab 6.5TD, Two-tone blue, 252K
Reply With Quote
  #24  
Old 06-13-2003, 03:30 PM
Registered User
 
Join Date: Sep 2001
Location: central Texas
Posts: 17,277
RT, I had three MGC's ( 6 cylinder MGB's) and a 1957 Jag xk140 at the same time...... all Lucas... plus some whitworth nuts and bolts mixed in with the metric and US threads....
Reply With Quote
  #25  
Old 06-13-2003, 03:43 PM
The Bob
Guest
 
Posts: n/a
I must say that I appreciate all the advice and interest in this topic. After further searching this forum there was a guy who modified his bimetalic switch to constantly engage his fan clutch. I am going to take mine off the car and see if that is a reasonable solution. My fan clutch may be fine but just never goin on.

THis modification is reversable so in other than the summer months I can have it set at normal operation.'

The electric fan option sound good also but I am not in the mood for much fabrication.

I can see now why the new cars use electric fans, to get all the horse power they can


Thanks again

bob c
Reply With Quote
  #26  
Old 06-13-2003, 09:07 PM
Registered User
 
Join Date: Nov 2002
Location: Wakefield, RI
Posts: 2,145
Leathermang,
I got some Whitworth tools! Used to own a couple of British Seagull outboards and they are all Whitworth. Weird stuff but the Seagulls are the outboard equivalent to an anvil. Should have kept them.... RT
__________________
When all else fails, vote from the rooftops!
84' Mercedes Benz 300D Anthracite/black, 171K
03' Volkswagen Jetta TDI blue/black, 93K
93' Chevrolet C2500HD ExCab 6.5TD, Two-tone blue, 252K
Reply With Quote
  #27  
Old 06-15-2003, 04:06 PM
The Bob
Guest
 
Posts: n/a
Again thanks for all your help


Here is what I am experimenting with.

I removed the fan (10 minutes) then removed the bimetalic plate (5 minutes) and put it back in.

I might just do this over the summer months. I live near chicago and it can get hot and I can find alot of traffic.

Also it might help my underpowered r134 conversion work better.

WHat do you all think?

I will let you know how it goes

bob c
Reply With Quote
  #28  
Old 06-15-2003, 05:09 PM
Moderator
 
Join Date: Jul 2001
Location: Old Lyme, Connecticut
Posts: 3,596
The Bob,

If the fan clutch now engages all the time, you may have come up with a great solution. The viscous material will prevent you from overspeeding and the always on function should keep air flow through the radiator at the necessary rate. Let us know how this fix works. Jim
__________________
Own:
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

Owned:
1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)
Reply With Quote
  #29  
Old 06-16-2003, 12:44 AM
The Bob
Guest
 
Posts: n/a
So far so good

So far I am pretty happy with it.

I have noticed that the car may be a bit slower (If that is possible) but I may be over sensitive to that. I did have it up to 80 mph with no problem.

The car runs a good 5 degrees colder C. Hold right at 85 to 92. It would go up to 100 before or even a little higher. The best thing is that my AC blows nice and cold now. It was about 85 outside and she was blowing at 40 degrees F. That is a substantial improvement. I used to blow around 50 degrees may be a little under.

I may even hot wire the AC fan to go on whenever the AC is on to get it as cold as possible.

I must say that this may be a real easy and reasonable solution to avoiding overheating and maximizing our weak AC system conversions. IF I loose 5 horse power in the process a cold cabin and cool motor are worth it.

Be careful Dont break the metal strip. You want to be able to use it again in the fall.

When I reinstall mine I will heat it so that it bends and then insert it into its holder.

Thanks again for the info


bob c
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 06:43 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page