You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!
Had my mechanic put on an 16% pulley, and now i get sort of a rattle in the motor, it's hard to describe, closest description would be an A/C clutch going out?
could this be some sort of a ping ,maybe? Went with stock plugs also.
It's really hard to pin down the noise, very annoying, but the car has more power of course, love the difference.
No offense intended here, but is your mechanic a Mini mechanic? There should be nothing different after your pulley install, except more power. If it was running fine before, should be fine now. Make sure he installed it right is all I can add.
If it's a rattle sound that shouldn't be normal, the water pump gears will make a rattling kinda sound when they are bad, so that could be, but without hearing it we are all guessing.
As for spark plugs they should be 7's, here is a link to them. http://www.waymotorworks.com/product...cat=274&page=2
An 18% reduction.....brave man (at least from all the complaints I hear about bad CA gas....long live 93!!).
Cooler plugs from what I have been hearing would be a must. I would also say, when you do your plugs...be sure to torque then very carefully....lots of stories about then getting blown out and doing damage....many folks are saying that you should use a drop of lock-tite to prevent them from loosening up.
Good Luck!!
__________________
l 2005 MCS l 11-04 Production l owned since new l RMW Tuned l Craven -17% Pulley l Craven Speed STD l Dinan CAI l JCW 380's l H&R 19 MM Swaybar l MSD Ignition l Power Steering Fan Duct l LightInSight l "EURO" MINI Armrest l Euro Parcel Shelf l Brake Light PULSAR(gen2)l Detroit Tuned Tensioner Stop l Blitzsafe/xmradio l Cobra 19IV CB l 4.5' Francis CB25 CB Antenna, mounted on the rear tow rig!!
oh you put crank pulley as well, you did not mention that (noticed in link)
you removed your "harmonic balancer" it will tend to rattle at idle. Many folks are "nervous" about crank pulley and reliability issues, but many have used it w/o probs and I ran it on previous MCS with no probs. Make sure you have right belt size.
__________________ 2006 MINI Cooper JCW GP0019
RMW tune & cams*17% pulley*ITG filter*Brisk plugs*H-Sport Comp RSB*KMac camber plates*resonator delete*TSW studs/jack pads*H&R 5mm spacer*CT AX6 pads*Motul RBF600*RedLine*15x7 Motegi TrakLites2*Nitto NT01 205/50-15 BRG/W 2003 MINI Cooper S R.I.P. Sheila
Naww...a waste of money unless it is weeping, leaking, or has lots of miles...do it when you rebuild/replace you supercharger. I would make sure you computer was reset, drop in new plugs...the colder ones, and make sure you have some good gas....some octane boost might help at least temporily. If it does...you know the problem is ping/knock. I would also look at the color of you tail pipe....is it black? If it is, ok. If it is gray or white....a warning sign that you may be running lean.
Good luck!!
__________________
l 2005 MCS l 11-04 Production l owned since new l RMW Tuned l Craven -17% Pulley l Craven Speed STD l Dinan CAI l JCW 380's l H&R 19 MM Swaybar l MSD Ignition l Power Steering Fan Duct l LightInSight l "EURO" MINI Armrest l Euro Parcel Shelf l Brake Light PULSAR(gen2)l Detroit Tuned Tensioner Stop l Blitzsafe/xmradio l Cobra 19IV CB l 4.5' Francis CB25 CB Antenna, mounted on the rear tow rig!!
Just throwing this out here, so after changing out your pulleys and a new belt, I wonder if the new belt, being tighter may have took out your idler pulley? They will make a bad rattle sound when bad.
....long live 93!!). 
