chewed belts
-
- Former Member
- Posts: 71
- Joined: Tue May 06, 2014 8:55 pm
- RX-8: 231
- Colour: Velocity Red
- Location: Stirling
- Has thanked: 0
- Been thanked: 0
chewed belts
Ok so I supercharged my 8 with the blitz kit, after 20 miles the belts have gone from good to mangled. Any ideas what caused it?
Also when putting light air pressure through the inlet, turning charger by hand, I can hear air escaping from the rear actuator on the inlet manifold, the one above the injectors, is this normal or a fault thanks
Also when putting light air pressure through the inlet, turning charger by hand, I can hear air escaping from the rear actuator on the inlet manifold, the one above the injectors, is this normal or a fault thanks
Supercharged 231 in velocity red.
- DanBass
- Media Team
- Posts: 14153
- Joined: Tue Apr 24, 2012 8:18 pm
- RX-8: PZ
- Colour: Galaxy Grey
- Location: Rogerstone, Gwent
- Has thanked: 19 times
- Been thanked: 153 times
Re: chewed belts
Either catching something or too tight I'd imagine. Have they frayed or split in line with spin direction?
'96 NA8 MX-5: MeisterR, and soon to be choo-choo'd
'56 Galaxy Grey PZ: sold
'54 Brilliant Black 192: sold
'54 Titanium Grey 192: rebuilt, sold
'53 plate Velocity Red 192: being rebuilt...still
‘67 Sunset Orange BMW 335D MSport Touring
'01 Topaz Blue BMW 330ci convertible
'56 Galaxy Grey PZ: sold
'54 Brilliant Black 192: sold
'54 Titanium Grey 192: rebuilt, sold
'53 plate Velocity Red 192: being rebuilt...still
‘67 Sunset Orange BMW 335D MSport Touring
'01 Topaz Blue BMW 330ci convertible
-
- Former Member
- Posts: 71
- Joined: Tue May 06, 2014 8:55 pm
- RX-8: 231
- Colour: Velocity Red
- Location: Stirling
- Has thanked: 0
- Been thanked: 0
Re: chewed belts
Yeah split in line with spin direction and frayed badly I don't think they're catching but I had them what I thought was tight enough (pretty tight) how do you tell? I usually make sure I can move it about a quarter inch up n down, or loose enough to twist the belt 90 degrees
Supercharged 231 in velocity red.
- Phil Bate
- Spin Doctor
- Posts: 9429
- Joined: Thu Mar 22, 2012 12:49 am
- RX-8: Kuro
- Colour: Sparkling Black
- Location: Cotswolds
- Has thanked: 52 times
- Been thanked: 221 times
Re: chewed belts
A damaged belt is often due to mis-alignment. You say belts - which belts exactly are fraying?
Phil's subtle sunlight silver - stronger, faster, with added red bits and stuff engine donor!
Operation Mint - Kuro preservation project
The pimped out Glacier White XE - quintessential British motoring from Jaguar
Operation Mint - Kuro preservation project
The pimped out Glacier White XE - quintessential British motoring from Jaguar
- Will66
- Media Team
- Posts: 17945
- Joined: Sat Apr 14, 2007 6:45 pm
- RX-8: 231
- Colour: Metropolitan Grey
- Location: Bury St Edmunds
- Has thanked: 8 times
- Been thanked: 60 times
Re: chewed belts
RX8OC Met Advisor and Ex-Moderator!
Miss May 2013 with these modifications02 November 2012
Certified Tarmac Terrorist! Evading the colour police since March 2013
Mazda RX8 - The Liv Tyler's Lips of Motoring
Miss May 2013 with these modifications02 November 2012
Certified Tarmac Terrorist! Evading the colour police since March 2013
Mazda RX8 - The Liv Tyler's Lips of Motoring
-
- Former Member
- Posts: 71
- Joined: Tue May 06, 2014 8:55 pm
- RX-8: 231
- Colour: Velocity Red
- Location: Stirling
- Has thanked: 0
- Been thanked: 0
Re: chewed belts
The a/c belt and the longer belt that picks up the other pulleys, sc belt was fine. Not the best pic but the was before I removed them and after.
Supercharged 231 in velocity red.
- Phil Bate
- Spin Doctor
- Posts: 9429
- Joined: Thu Mar 22, 2012 12:49 am
- RX-8: Kuro
- Colour: Sparkling Black
- Location: Cotswolds
- Has thanked: 52 times
- Been thanked: 221 times
Re: chewed belts
So how are your belts arranged? It looks like you have the standard setup:
Main pulley > tensioner > A/C pump > main pulley
Main pulley > water pump > alternator > main pulley
Plus an extra pulley on the alternator driving the S/C - is that right?
Main pulley > tensioner > A/C pump > main pulley
Main pulley > water pump > alternator > main pulley
Plus an extra pulley on the alternator driving the S/C - is that right?
Phil's subtle sunlight silver - stronger, faster, with added red bits and stuff engine donor!
Operation Mint - Kuro preservation project
The pimped out Glacier White XE - quintessential British motoring from Jaguar
Operation Mint - Kuro preservation project
The pimped out Glacier White XE - quintessential British motoring from Jaguar
- Phil Bate
- Spin Doctor
- Posts: 9429
- Joined: Thu Mar 22, 2012 12:49 am
- RX-8: Kuro
- Colour: Sparkling Black
- Location: Cotswolds
- Has thanked: 52 times
- Been thanked: 221 times
Re: chewed belts
Have you got a pic with all the belts and idlers in place? Also, which belt is that pictured - it looks like there is a good amount of wear on the one edge.
That setup is demanding a lot from the alternator belt - the size of the pulley on the alternator means it is geared up and has a short contact length. Not a problem when you are driving just the alternator, but a S/C in addition must be causing a serious amount of strain
That setup is demanding a lot from the alternator belt - the size of the pulley on the alternator means it is geared up and has a short contact length. Not a problem when you are driving just the alternator, but a S/C in addition must be causing a serious amount of strain
Phil's subtle sunlight silver - stronger, faster, with added red bits and stuff engine donor!
Operation Mint - Kuro preservation project
The pimped out Glacier White XE - quintessential British motoring from Jaguar
Operation Mint - Kuro preservation project
The pimped out Glacier White XE - quintessential British motoring from Jaguar
-
- Former Member
- Posts: 71
- Joined: Tue May 06, 2014 8:55 pm
- RX-8: 231
- Colour: Velocity Red
- Location: Stirling
- Has thanked: 0
- Been thanked: 0
Re: chewed belts
No sorry, I wish I'd taken one but its in bits now. I'm hoping its just misaligned, over tightened, and a bit of extra load, fingers crossed new belts, tightened to half a twist? Will fix it, otherwise I'll be back on. Is there such a thing as uprated belts?
Supercharged 231 in velocity red.
- Phil Bate
- Spin Doctor
- Posts: 9429
- Joined: Thu Mar 22, 2012 12:49 am
- RX-8: Kuro
- Colour: Sparkling Black
- Location: Cotswolds
- Has thanked: 52 times
- Been thanked: 221 times
Re: chewed belts
Not that I know of. Are the alternator and S/C unit now mounted on the same bracket? If so I expect this may be misaligned if you are not seeing edge wear on the S/C belt
Phil's subtle sunlight silver - stronger, faster, with added red bits and stuff engine donor!
Operation Mint - Kuro preservation project
The pimped out Glacier White XE - quintessential British motoring from Jaguar
Operation Mint - Kuro preservation project
The pimped out Glacier White XE - quintessential British motoring from Jaguar
- warpc0il
- Spin Doctor
- Posts: 32531
- Joined: Sat Sep 06, 2008 10:56 pm
- RX-8: 231
- Colour: Lightning Yellow
- Location: Groomsport, Co Down, NI
- Has thanked: 826 times
- Been thanked: 3537 times
- Contact:
Re: chewed belts
The scary answer would excessive end-float in the eccentric shaft or the front stationary bearing failing.
Suggest you check and confirm it isn't either before running again.
Suggest you check and confirm it isn't either before running again.