hey guys, I am running a 2.0 3a block with a 1.825 kg crank damper. I have a 1.635 kg damper, so my question is, am I likely to increase crank bearing wear by reducing the mass of the damper???
Some of the engines do not have any dampener. I doubt if the bearings will wear anymore than normal and if there is a difference, I doubt if you could prove it.
From my understanding, the damper dampens the flex of a crank during the power pulses. Kinda like a shock. I know there are some manufactures that use the damper as a counterweight [ie Ford V8] but I do not think VW does it that way. I would think a larger one dampens more or at least at a different frequency.
well the centre sections and the rubber sections are identical on both. the difference is only on the outer diameter. I was using it on the 1.8 for about a year, and there is some visible wear on the crank, but with it being a high mileage anyway, who knows. not sure which engine the smaller pulley came off originally. could have been an early mk1 gti 1.6 or maybe the later mk2 1.6 carb.
It's a leap to say that the wear was caused by the dampener.
If the dampener was out of balance, I can see additional wear from the #1 main journal bearing. Since the dampener is for twisting, I cannot see that it would cause additional wear. I could see that a crank would crack with the wrong dampener.
the wear on the original crank is very slight, but it's also very even across all journals. so it's probably just high mileage. I was just thinking that maybe the longer throw crank would need the bigger damper. Iv'e fitted it anyway. it's 10% lighter and 6.3% underdrive, so not a huge difference.
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