When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Stock Problems/IssuesDiscussions related to warranty related issues and repairs, or other problems with the OEM parts and software for MINI Cooper (R50), Cabrio (R52), and Cooper S (R53) MINIs.
It runs completely fine it’s a new engine and gearbox in it the only thing that hasn’t been changed is the supercharger
How many miles on the supercharger?
Did that supercharger make that noise on the old motor?
If it didn't make that noise on the old motor, when did it start making noise on the new motor? How many miles on the new motor?
What boost numbers are you seeing? Stock pulley? If not...what size?
Supercharger has 113k on it and the new motor has 60k and no the supercharger wasn’t making that noise on the old engine and I have a stock pulley getting 10psi
Yep....I was thinking it sounded like a cam chain also. If you are getting boost, and no codes.....you might want to check out your chain tensioner first.
How many miles were on the motor when you installed it?
+1 on IQRaceworks ... chain tensioner first, then if that does not eliminate the sound, then I'm thinking chain guides (and maybe a new timing chain). Do you have a mechanic's stethoscope? They're cheap (less than $10, think Harbor Freight) and it's fairly easy to pinpoint a sound with one. Stick it on the timing chain cover and see what you hear.
There are bearings, and self-contained oil chambers, at both ends of the supercharger. One chamber holds approx. 100ml (pulley end) and the other, 25ml. Normal service interval for SC oil changes is 100k miles so it's entirely possible yours has never been serviced (did you service it when you swapped engines?) and is running dry which can be catastrophic (and really expensive to replace). If it wasn't serviced, I would suggest pulling the SC and replacing the oil as soon as possible. If the noise is still occurring, then your SC bearings may be shot.
Yes I serviced the supercharger when I put In the new engine I put 4.9oz in the front and 1.4oz in the rear. When I drained out the old oil there was plenty that came out of both sides
By left I assume you mean drivers side. The water pump is on that side. You could be mistaking a bad water pump for the SC.
However the video seems to indicate the sound is from the passengers side. Sounds like timing chain related.
Any overheating issues, i.e., high temps, loss of coolant, etc.? That would certainly indicate the water pump. If not, then +1 with Tgriffithjr on the timing chain/guides/tensioner being bad, particularly if you've narrowed the location of the sound to the pulley side. Place your stethoscope onto the timing chain cover and check that out. Also, if it's a bad timing chain/guides/tensioner the sound should get quieter as you rev the engine (centrifugal force presses the timing chain more strongly against the guides and eliminates the slap/noise).
When I rev the engine the sound gets louder and faster. When I put my sthethscope on the valve cover I don’t hear anything. When I put it on the supercharger horn I hear the noise a lot on the pulley side. No my car is not overheating at all.
Sounds as if the timing chain/guides/tensioner are bad. If it was me I would replace as soon as possible. Your largest threat with a bad chain is the engine jumping timing and that could cause a valve to hit a piston providing you with a large, heavy paperweight.