ryepye5
Member
Registered: 8th Aug 11
Location: exeter
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Hi guys/girls i was wondering if anyone has snapped c.v joints because your cars too low? Iv gone through 3 so far? Anyone know how to fix it other than raising the car? Cheers
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Jake
Member
Registered: 24th Jan 05
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mine car was lower than most and never had problems.
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
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based on ford spec, which i imagine is similar to most other manufacturers, the inner cv should be at no greater angle then 18 degrees and the outer no greater then 45
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AK
Member
Registered: 5th Jul 00
Location: Aberdeen City
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A lot will also depend on the loads through the joints.... and if they are greased etc.
A c20let B would more likely snap joints when compared to a 1.0 12v B - at the same angles. In my opinion.
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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what size of wheels are you using?
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ryepye5
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Registered: 8th Aug 11
Location: exeter
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im using 15 inch tigra alloys with 195/45/ tyres.....my coilies are all the way down and i cut my bump stops a little bit to allow the car to sit lower.
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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foolish
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AK
Member
Registered: 5th Jul 00
Location: Aberdeen City
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here is a basic test for you
Jack the car up, slide the bump stops down.
Pop a couple of cable ties round the piston rods (the thin shiney one) on top of the bump stop. 1 per strut - or just 1 on 1 strut where you snap CVs all the time
Lower the car gently.
Do a routine drive round the block then jack it up again and see where the cable tie is.
Do you have any suspension travel?
[Edited on 21-10-2011 by AK]
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thegsi
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Registered: 3rd Feb 07
Location: Kidderminster Drives: Evo (you can't afford one)
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Try being 70-80mm down with a big heavy LET and F28 lump in the front and then try and put 250lbft+ through the joints, then you'll realise CV problems
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AlexW
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Registered: 25th Oct 08
Location: Essex
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Power will kill them rather than how low the car is IMO.
If the shaft has no movement lengthwise then its more likely to kill the CV's IMO
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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of course a greater angle will kill them, the spider bearing is put under more pressure on each rotation the greater the angle, also can even lock up if too much angle is exerted
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kav
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Registered: 5th Jul 09
Location: Trawden, Lancashire
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i had my c lowered at 60 mm and went through 3 cv joints in just over a year
[Edited on 21-10-2011 by kav]
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AlexW
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Registered: 25th Oct 08
Location: Essex
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quote: Originally posted by Steve
of course a greater angle will kill them, the spider bearing is put under more pressure on each rotation the greater the angle, also can even lock up if too much angle is exerted
The angle is less when lowered, Its normally in the opposite direction obviously but closer to straight.
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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i would have thought the angle would increase
Outer high, inner low
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thegsi
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Registered: 3rd Feb 07
Location: Kidderminster Drives: Evo (you can't afford one)
User status: Offline
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When you lower a car, the inner CV will flex upward so the shaft exits at a greater angle. Then it'll enter the outer CV at a lower angle so both joints are under adverse stress over their standard set up. This mixed with added torque = Death.
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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Yeah angles increase
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