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HatrixMouse

Rrm Pulley Install

12 posts in this topic

OPTION 1: Use the 'Search' field: FAILED

So, I took my GTS into the shop today to get my Eibach Sportline and RRM Crank Pulley installed. About half way through the day, my mechanic calls me and says he wasn't so sure about the pulley install, because the RRM pulley did not have a rubber damper on it (for vibrations), like the OEM pulley had on it, so he didn't install it. He said there was one installed on an Eclipse and it ended up snapping the crank pulley bolt (I found another case like this on Evom).

Question for those WITH the pulley: have you had any problems with it whatsoever? And if so, what happened?

Also reading Evom, I noticed a thread that stated the RRM pulley was balanced, so that it didn't need the damper like the OEM pulley did, because it didn't have as much strain from the belts or something... true or not? I've already e-mailed RRM for their response.

Comments? Please fill me in! Thanks a lot.

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Had the RRM Pulley in my GTS. IMHO, the difference was minimal. Personally I'd stick with the stock pulley as it does have the harmonic damper.

Although, many people run it with no problems.

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I've been running the pulley for over 2 years....no problems what so ever

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A pulley with out the dampner can cause damage , micro-vibrations of the crank can cause bearing damage internally , not a immediate failure but over time it progressively worsen and lead to pre-mature failure .

A better option is Alutec Light-Weight Balanced Crank Pulley .

Offers the weight savings and balancing features .

Cost is more , but benefit is worth it .

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I've gotten an e-mail response back from RRM, and here's what they said:

IT does not have the dampner but it is not needed because the engine has balance shafts. Old time mechanics are used to seeing dampner. It is not a problem We have NEVER HAD A FAILURE REPORTED TO US. never.

Not even a remote issue due to this part. Thanks RRM

Now, do we believe what they say and continue installing it, or assume they just want money?

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I've gotten an e-mail response back from RRM, and here's what they said:

Now, do we believe what they say and continue installing it, or assume they just want money?

Maybe they should read the Mitsubishi factory service manual ,

because the 4B10/11/12 series of engines do indeed have a harmonic balancer in the crank pulley

Section 11A page 10 .

So guess Mitsubishi is one not being truthful ?

According to RRM guess not .

As far as no one reporting it to them , try to get thru to them on phone , their customer service sucks.

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dont install it, gains are minimal if any and its not worth it as it could cause damage in the long run.

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So, I've responded to their email with:

Thank you for that information. Upon doing a little research on my own, I came across the Mitsubishi Service Manual for the 4B11/4B12 engines, and it states on Section 11A page 10, that the engine's crankshaft pulley has a harmonic balancer within them. I would like to know your thoughts/opinions on this matter, because I would feel uneasy replacing a part that doesn't have original manufacturer specifications, for fear it would damage my engine, thus voiding its warranty.

Thank you

Let's see what they say next! (Ooh, this is exciting, and they probably are extremely annoyed with me already.)

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IT does not have the dampner but it is not needed because the engine has balance shafts. Old time mechanics are used to seeing dampner. It is not a problem We have NEVER HAD A FAILURE REPORTED TO US. never.

Not even a remote issue due to this part. Thanks RRM

I'm actually confused by this. If they've had no issues with the pulley, why did they come out with a second version?

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So, I've responded to their email with:

Let's see what they say next! (Ooh, this is exciting, and they probably are extremely annoyed with me already.)

Just get the Alutec lightweight balancer pulley , Its balanced and weighted already .
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i just read about another persons rrm pulley failing, which makes the list that i have heard of over 5. I am not by any means ever going to look into their pulley as i have heard nothing but bad about it. Also in my one experience with RRM, they suck. They never responded to my email and it took a couple months to get my part. Just my 2 cents

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Just get the Alutec lightweight balancer pulley , Its balanced and weighted already .

Well, the sad part is, I've already gotten the RRM pulley, and now need to sell it before I get the Alutec one. :S

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