Cabrio Coilover Data

[greyV8pete]

I have started this new post with a sketch and details that I have gleaned so far.

It seems that the shorter (stiffer) springs have been used on my Hunter, maybe due to the weight of the V8 engine?

Please send me a PM with any info that you have about your own cars and I will add it to the spreadsheet. Peter.

Coilover sketch col rsz.jpg

CABRIO FRONT COILOVER DATA
DIMENSIONS IN INCHES (UOS)
SOURCE	greyV8pete	Happy Dave	Mike W	Dogoncrazy
MAKE	GAZ	GAZ	AVO	GAZ
PART No	GP3116 B12E06	?	APF130/090	GP6 2338
DIMENSIONS
A (Fitted)	11.375	11.375		?
A (Fully Open)	?	?	13.00	?
A (Fully Closed)	?	?	10.50	?
B	4.450	4.375	?	?
C (Fitted)	5.250	5.250	?	?
L	8.250	8.250	?	?
t (Threads Visible)	25	22	?	?
N (Turns0	7	10	?	?
MODEL	LWB	SWB	?	?
ENGINE	Rover	Ford	Rover	?
SIZE	V8	2.0L Twin Cam	V8	?
ENG WEIGHT (Kg)	230	?	?	?
SPRINGS
MAKE	GAZ	GAZ	AVO
PART No	?	?	E9250
Length (Free)	?	?	9.00
RATE (lb)	?	?	250
WIRE DIA	9 mm	9 mm	?

[greyV8pete]

Re: Cabrio Coilover Data

My P/No edited and my further dims added. Peter.

CABRIO FRONT COILOVER DATA
DIMENSIONS IN INCHES (UOS)
SOURCE	greyV8pete	Happy Dave	Mike W	Dogoncrazy
MAKE	GAZ	GAZ	AVO	GAZ
PART No	GP31168 B12E06	?	APF130/090	GP6 2338
DIMENSIONS
A (Fitted)	11.375	11.375		?
A (Fully Open)	12.75	?	13.00	?
A (Fully Closed)	10.50	?	10.50	?
B	4.450	4.375	?	?
C (Fitted)	5.250	5.250	?	?
L	8.250	8.250	?	?
t (Threads Visible)	25	22	?	?
N (Free Turns)	7	10	?	?
MODEL	LWB (Hunter)	SWB (Hunter)	?	?
ENGINE	Rover	Ford	Rover	?
SIZE	V8	2.0L Twin Cam	V8	?
ENG WEIGHT (Kg)	230	?	?	?
SPRINGS
MAKE	GAZ	GAZ	AVO
PART No	?	?	E9250
Length (Free)	8.50	?	9.00
RATE (lb)	?	?	250
WIRE DIA	0.375	9 mm	?

Link below for spring rate calculator:

http://www.reliablespring.co.uk/calculator.htm

[greyV8pete]

Re: Cabrio Coilover Data

If anyone can have a look under their Cabrio / Hunter with a tape measure over this weekend and let me have their info I would appreciate it. I want to phone GAZ with an order on Tuesday and any more data available will be really useful. Many thanks. Peter.

P.S. The deleted post above was a failed attempt to embed the pic to make it viewable without people having to log in. P.

[greyV8pete]

Re: Cabrio Coilover Data

Latest data update below:

CABRIO FRONT COILOVER DATA
DIMENSIONS IN INCHES (UOS)
SOURCE	greyV8pete OLD	greyV8pete NEW	Happy Dave	Dogoncrazy	Mike W	drover pete	ggrum
MAKE	GAZ	GAZ	GAZ	GAZ	AVO	AVO	AVO
STAMPED PART No	GP31168 B12E06			GP6 2338	APF130/090	K2 974 ?	?
DAMPERTECH REF		130/090 B12 - 2
DIMENSIONS
A (Fitted)	11.375	11.500	11.375	11.250	11.125	11.500	11.600
A (Fully Open)	12.75	13.00			13.00	13.38
A (Fully Closed)*	10.50	10.00			10.50
B	4.450	4.250	4.375	2.250	2.875	2.625	3.150
C (Fitted)***	5.250	5.750	5.250		6.25	6.50	6.000
L	8.250	7.750	8.250	8.250		8.125	8.250
t (Threads Visible)**	25	23	22	none!		NS 3 / OS 8
N (Free Coils)	8	8	10	9	7	9	8
MODEL	LWB (Hunter)	LWB (Hunter)	SWB (Hunter)	LWB (Cabrio)			SWB
ENGINE	Rover	Rover	Ford	BMW M20	Rover	Ford
SIZE	V8	V8	2.0L Twin Cam		V8		2.0L DOHC
ENG WEIGHT (Kg)	230	230		258
SPRINGS
MAKE	GAZ	GAZ	GAZ		AVO		AVO
PART No		2.25 x 9 x 225			E9250
Length (Free)	8.50	9.00			9.00
RATE (lb)	200 / 210 (Test)	225			250		225 (Calcd)
WIRE DIA	9.5 mm	9.5 mm	9 mm	7/16"		9 mm	0.375
INTERNAL DIA	2.25	2.25
END BUSHES
BOLT HOLE	0.50	0.50
BUSH WIDTH	1.25	1.25

Note * 1 - /090 in part number is distance between body and metal top flange. The 1" bump rubber makes the actual fully closed dimensio 10" as shown.

Note ** 2 - Adjustment threads visible shown for reference only - Different makes and part numbers will not read across!

Note *** 3 - The new coilovers have the bottom of the body much closer to the lower bolt bush so differences will appear for some dimensions.

Note! - Old type Marlin (solid) wishbones need smooth tapering radius grinding to ensure body will not foul at extreme rebound! Later tubular type do not.

ADJUSTING COILOVERS

A few notes about adjusting coilovers while still fitted to the car.

Before attempting to adjust the spring seats on coilovers that have been in service for some time be sure to note the following:

• Wire brush all exposed threads on the body to remove any rust or corrosion.
• Spray the threads with Plus Gas or penetration oil. Leave to stand overnight!
• Oil the top C- shaped spring seat where it fits against the top flange of the piston rod.
• Oil the threads above and below the adjuster ring
• Loosen the locking grub screw in the edge of the adjuster ring.
• Jack under the centre of the front cross member so both front wheels are off the ground.
• Use the correct size C-spanner to rotate the bottom spring adjuster ring.
• Don’t forget to tighten the locking grub screw after final adjustment.

Hope all this helps.

Peter.