Back end wiggles when coming off the power
#21
The only way to adjust the rear ride height is by altering the spring perch that rests on each shock absorber body, or by buying shocks with adjustable perches.
#22
The following 2 users liked this post by HeWhoDaresRoyV2:
Greg in France (12-20-2017),
ronbros (12-20-2017)
#23
Greg
#24
Spring are new Eibach for an Aston DB7, so it could be that they are specified differently to XJS springs, but I can't find any info around that.
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Doug (12-20-2017)
#25
IMO, spring manufacturers play it fast-n-loose with specs and applications....which is why we see so many ride height issues after spring replacements
Cheers
DD
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Grant Francis (12-20-2017)
#26
The ride height used to look fine before, but I had to change the suspension as a couple of the shocks were leaking and the springs were rusty. I think the car should have a slight nose-down appearance, but at the moment it sits completely level (maybe like an Aston DB7!)
#27
If you want a slight nose down appearance...I like it, personally.... lower the front ride height a bit. IMO
Cheers
DD
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ronbros (12-20-2017)
#29
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HeWhoDaresRoyV2 (12-26-2017)
#31
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HeWhoDaresRoyV2 (12-27-2017)
#32
The problem I had was the car veering to one side under emergency braking. The reason is that the front ABS sensors get covered in crud, partially old wheel bearing grease, then the wheel ABS signal is weak. Below a certain speed, the signal is too weak to be detected, at which point the system assumes that wheel is locked, and releases the brake.
Braking hard from, say 60, mine would brake nice and straight, until below about 30mph, when it would suddenly veer to the left.
Fixed it by cleaning and adjusting the sensors.
Braking hard from, say 60, mine would brake nice and straight, until below about 30mph, when it would suddenly veer to the left.
Fixed it by cleaning and adjusting the sensors.
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HeWhoDaresRoyV2 (12-27-2017)
#33
Hmm, will give the sensors a clean, if I can, as that's a pretty easy first thing to try. My original issue with losing control of the car under braking was at high-speed, but it also seems to do it under heavy braking from low speed.
Interestingly, after a few trial emergency stops yesterday, it seems to be braking straight and true now, from low speed at least. Not sure I'd trust it to stop me from high speed as yet, though. I've seen some threads around faults with the ABS valve block, particularly after brake-work and bleeding, which is when my problem started. Looks pretty daunting, though.
Interestingly, after a few trial emergency stops yesterday, it seems to be braking straight and true now, from low speed at least. Not sure I'd trust it to stop me from high speed as yet, though. I've seen some threads around faults with the ABS valve block, particularly after brake-work and bleeding, which is when my problem started. Looks pretty daunting, though.
#34
Nope.....still not right. It handles ok if I chuck it into a low speed corner, but seems to feel unstable at speed, even in a straight line, and especially under braking. I'm fed-up with chucking new parts at it so have booked it in with KWE, as they seem to be the experts with these cars.
Last edited by HeWhoDaresRoyV2; 01-12-2018 at 03:34 AM.
#35
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HeWhoDaresRoyV2 (01-12-2018)
#36
#37
Thanks! I've not checked all the things suggested by contributors to the thread, because some, I don't know how to, but have tried all the 'easy' stuff and still no joy. I can't imagine it's going to be cheap, but I'm not getting any enjoyment from the car as it is. It really feels like it's much less than the sum of its parts, if that makes sense:
Manual gearbox conversion
All the AJ6 Engineering tuning bits
Electric fan conversion
Gaz shocks
Eibach springs
Rob Beere cage mounts
Poly bushes in most bits
3.54 diff
New discs, pads & calipers......
List goes on, and it's still a bit of a dog to drive!
Manual gearbox conversion
All the AJ6 Engineering tuning bits
Electric fan conversion
Gaz shocks
Eibach springs
Rob Beere cage mounts
Poly bushes in most bits
3.54 diff
New discs, pads & calipers......
List goes on, and it's still a bit of a dog to drive!
#38
Worn fulcrum arm bearing! I never managed to get to KWE but fortuitously, a classic jag specialist has just opened near my home, so I took it in there. It's now stable at speed and handles great. There's still some diving under braking, so I guess it was two or more faults causing my problems. Brakes next.....
The following 2 users liked this post by HeWhoDaresRoyV2:
Doug (05-03-2018),
Greg in France (05-03-2018)
#39
Worn fulcrum arm bearing! I never managed to get to KWE but fortuitously, a classic jag specialist has just opened near my home, so I took it in there. It's now stable at speed and handles great. There's still some diving under braking, so I guess it was two or more faults causing my problems. Brakes next.....
Hi, I'm not far from you in East Surrey and keen to hear of nearby specialists. Can you provide a contact for your Jag specialist. Thanks and good luck with the car.
LeeP
#40
Here you go:
https://www.turnerclassics.co.uk/
the chap who worked on my car was 'John' and really knows his stuff.
https://www.turnerclassics.co.uk/
the chap who worked on my car was 'John' and really knows his stuff.
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leep123 (05-08-2018)