I've got a constant tone whooshing changes with rev, sounds like a fan thats not in the shroud (but I've sorted the fan)
its not there below 3k revs, when its about 4k revs it sounds like its running a straight cut gearbox !
I have a feeling that its the alternator, but any ideas are welcome
Cheers
Phil
engine making noise at higher revs
Started by
Philtrum
, Jun 28 2005 12:30 PM
6 replies to this topic
#1
Posted 28 June 2005 - 12:30 PM
#2
Posted 28 June 2005 - 12:38 PM
could be the carburettor sucking in air?
#3
Posted 28 June 2005 - 08:13 PM
thanks, just checked the carb by spraying wd40 round it when the engine was running, there was no increase in revs, so thats ruled an air leak on the carb out
when I was looking at the carb, (metro A+ engine) there is the fuel in on the left hand side, next to it is another pipe, this goes to a y peice and two pipes come off, one goes down to the gearbox where it attaches to a canister and the other goes round to the water pump side and into another canister
it seems that the fan is catching on the canister ever so slightly, also with it being close to the fan its prob causing the air noise
question is..... what are the canisters ..... ?
Cheers
Phil
when I was looking at the carb, (metro A+ engine) there is the fuel in on the left hand side, next to it is another pipe, this goes to a y peice and two pipes come off, one goes down to the gearbox where it attaches to a canister and the other goes round to the water pump side and into another canister
it seems that the fan is catching on the canister ever so slightly, also with it being close to the fan its prob causing the air noise
question is..... what are the canisters ..... ?
Cheers
Phil
#4
Posted 28 June 2005 - 09:48 PM
Engine breathers.
Obviously you have (or someone has) fitted the fan when fitting the engine as Metro's don't have their fans there. What hasn't been done (probably) is to fit a fan spacer behind the fan. Get one or two and it'll fix this. It'll help cooling too as the fan should be fairly close to the core.
Obviously you have (or someone has) fitted the fan when fitting the engine as Metro's don't have their fans there. What hasn't been done (probably) is to fit a fan spacer behind the fan. Get one or two and it'll fix this. It'll help cooling too as the fan should be fairly close to the core.
#5
Posted 29 June 2005 - 12:20 PM
The conversion was done before I bought the car, I've had a look and it does not look like its got a spacer on it
is the spacer something you can by cheaply, or can you pack the fan with washers (providing they are all the same width ?)
how far does the fan need to be inside the shroud ? (its just inside or level with the outer edge on at the moment
Cheers
Phil
is the spacer something you can by cheaply, or can you pack the fan with washers (providing they are all the same width ?)
how far does the fan need to be inside the shroud ? (its just inside or level with the outer edge on at the moment
Cheers
Phil
#6
Posted 29 June 2005 - 07:37 PM
Just use one thin spacer (there's thin and thick ones, the thin one's about 3mm) to move it further away from the engine, as long as it's not touching the rad it'll be fine (remember the blades will flex a little towards the engine when running so allow enough clearance).
The spacer is about a quid and you can get it from most Mini places. Using washers is a knightmare to keep them all aligned as you feed the bolts in, and the balance won't be great.
Part number 12A312.
The spacer is about a quid and you can get it from most Mini places. Using washers is a knightmare to keep them all aligned as you feed the bolts in, and the balance won't be great.
Part number 12A312.
#7
Posted 30 June 2005 - 11:41 AM
Thanks Dan
I'll get purchasing
Cheers for your help
Phil
I'll get purchasing
Cheers for your help
Phil
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