Squeal On Boost (Supercharger)
#1
Posted 19 August 2014 - 09:05 PM
It's finally up and running nicely after many teething problems, but it's now making a kind of squealng noise when on boost. Almost like a loose fan belt sort of noise, only it's not loose!
I know it's hard to diagnose through a description of a noise, but anyone got suggestions/trobleshooting hints?
I can't replicate the noise on idle as it needs to be boosting to make said noise.
#2
Posted 19 August 2014 - 09:17 PM
#3
Posted 19 August 2014 - 10:06 PM
I then had to run the car for a while to warm up the belt (it stretches a little when warm) then re tension. This fixed my issue.
#4
Posted 20 August 2014 - 06:11 PM
I tried talc which has made the noise louder and also now sounds like a loose belt on tickover. I'm not sure whether to change the sc drive belt and fan belt with new. (Sc belt isn't old itself and I can't remember when the fan belt was new)
How are the sc drive pulley bearings lubricated?
#5
Posted 20 August 2014 - 06:12 PM
Edited by minivanman8, 20 August 2014 - 06:12 PM.
#6
Posted 20 August 2014 - 06:14 PM
Attached Files
#7
Posted 21 August 2014 - 09:18 AM
If a belt is too tight, it can make the bearings in pulleys whine. However, I wouldn't have thought this would only happen on boost.
#8
Posted 21 August 2014 - 01:24 PM
Could be because there'll be more load on the bearingsIf a belt is too tight, it can make the bearings in pulleys whine. However, I wouldn't have thought this would only happen on boost.
#9
Posted 26 August 2014 - 08:12 PM
Unless your belts have gone hard there isn't much else it could be. There are multi V belts out there with cross cuts to assist with grip. Maybe this will help
Good luck working it out.
#10
Posted 26 August 2014 - 08:34 PM
Hi
I've heard of the soap trick , and heard of the belt conditioner spray
but havn't done either - just another option - poly v belts do bottom out after a while & oxidise
http://www.ebay.co.u...=item3cdf40b931
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