MRZ underdrive Pulley?

[jschmieding]

I am looking to get the under drive Pulley from MRZ but am curious on how to transfer the Crank Reluctor ring from the factory crank pulley to to MRZ crank pulley. by the way this is for a 2000 3400 motor

[unchained01]

You can contact GI CEO on GAGT And the pulleys do come with instructions

[bob442]

Money spent better somewhere else. Search why



Sent from my iPhone using my iPhone at work cuz I have nothing to do

[19Cutlass94]

If you must know, plently of spray lube, fine chisel and paitence.

[geoffinbc]

Money spent better somewhere else. Search why

Agreed. An engine without a damper is one that will live a shortened life.

[mfuller]

Agreed. An engine without a damper is one that will live a shortened life.

While I am inclined to agree, does a dual-mass flywheel (a-la a 3900/F40 combo) accomplish the same thing? Does the presence of a DMF negate the need for a damper in the crank pulley?

Discuss amongst yourselves.

[bob442]

Discussion over discussed. Soon these threads will just be locked and forgoten about.

[jschmieding]

Thanks guys for all the help I will keep everything in mind that was said on here. I definitely have got too much time and money in this motor for it to go out prematurely due to a crank pulley.

[19Cutlass94]

Thats the reason I got rid of mine.

[bob442]

WE'VE CONVERTED SOMEONE!!!!!!!

HAIL TO THE 60DEG GODS!!!

[19Cutlass94]

[geoffinbc]

While I am inclined to agree, does a dual-mass flywheel (a-la a 3900/F40 combo) accomplish the same thing? Does the presence of a DMF negate the need for a damper in the crank pulley?

Discuss amongst yourselves.

No, dual mass flywheels are designed to dampen low rpm chatter and vibration going to the drivetrain. They are made to make driving more comfortable. They are mostly used on diesel engines to dampen the harsh rumble of a low RPM motor with a lot of load on it. They are not designed or tuned for high RPM torsional vibrations coming off a crank.

If you want the benefits of an under drive pulley and none of the risks of not having a damper then make all the other pulleys bigger. All the GM cars and truck use the same width of belt so finding and adapting parts may not be too hard. This also allows you to customize the drives. So if you need that alternator to give full charge at idle then you can continue to have that but change the water pump and power steering pump pulleys to under drive them and save on power only in that area.