OM603 to OM606 Fan Clutch Mod ???? - PeachParts Mercedes-Benz Forum

a2t · #1 05-04-2009, 09:56 PM

Quote:

Originally Posted by compu_85

I could be wrong. But I would think that the new clutch isn't designed to deal with the weight of the metal fanwheel. I'll agree with you that the job is enough of a bear you wouldn't want to repeat it.

-J

Damn good point. The 606 fan clutch looks pretty massive, but yeah im sure the plastic fan is 3x lighter than metal.

Anyone else??

C Sean Watts · #2 05-04-2009, 10:42 PM

Quote:

Originally Posted by a2t

Damn good point. The 606 fan clutch looks pretty massive, but yeah im sure the plastic fan is 3x lighter than metal.

Anyone else??

I went to the plastic fan for the same reason. It would not take much work to get the metal fan to fit BUT it is a good bit heftier.

This does give me an idea...

If someone who may have tried this could tell us. Has anyone who has to drive in hot climates (I mean more than MN on a summer day - think San Antonio, Atlanta or Miami) ever made a direct to the water pump spacer/clutch eliminator for the fan OR installed a flex fan?

compress ignite · #3 05-05-2009, 12:39 AM

Sean,

It'd work,But really drag the engine especially @ Hwy speeds (MPG suffer)
AND put excess wear on the whole Serpentine Belt Drive System.

I'm surprised you haven't gone to Evan's Waterless Coolant
(Much cooler Operating temps [up to 10Fcooler],even under extreme Load/Heat conditions)
It does not "Pressurize" the system like water based coolants.
(You would want to plug the H2O pump's weep holes with "Something" [RTV?]
and also seal off the Overflow Tank Exit [in the passenger side Fender.]The
Evan's is hygroscopic, and any water introduced lowers benefits.)

http://www.evanscooling.com/catalog/C_npg1.htm

C Sean Watts · #4 05-07-2009, 03:05 PM

Quote:

Originally Posted by compress ignite

Sean,

It'd work,But really drag the engine especially @ Hwy speeds (MPG suffer)
AND put excess wear on the whole Serpentine Belt Drive System.

I'm surprised you haven't gone to Evan's Waterless Coolant
(Much cooler Operating temps [up to 10Fcooler],even under extreme Load/Heat conditions)
It does not "Pressurize" the system like water based coolants.
(You would want to plug the H2O pump's weep holes with "Something" [RTV?]
and also seal off the Overflow Tank Exit [in the passenger side Fender.]The
Evan's is hygroscopic, and any water introduced lowers benefits.)

http://www.evanscooling.com/catalog/C_npg1.htm

I have seen it before but I'm a little hesitant to use it on an older engine, especially on a #14 head.