twas_brillig
Jedi Knight
Offline
I'd dropped a note to Kilmartin asking about camber etc. adjustments, and received the kind reply below. Since they'd been good enough to provide their installation instructions, I figured add them to the site in case a member ends up with a set of their plates for which instructions have been lost.
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Hello Doug,
I have attached a copy of our AH540 fitting instructions, that also give some info on adjusting the castor. I think most people would go for around 1 degree negative camber for road going Healeys. For competition maybe 3 – 5 degrees negative.
Kind regards
Greg Kilmartin
Kilmartin Automotive Sheetmetal
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AH 540 ADJUSTABLE FRONT SHOCK MOUNT PLATES
( Please read completely before beginning installation )
December 2015
Basically the aim in fitting these mounts is to position each plate to replicate the position of the original plates as far as the height and forward/aft positioning, and to have the slotted holes positioned so that negative camber can be obtained ( the further inwards each plate is positioned in towards the centreline of the car : the more negative camber is obtained )
On the original shock mount plates the distance between the inside shock mount holes is 24 1/8”- 613mm ( between centres )
Screw adjusting plates out until the tapped hole is approx 5mm from edge of slot ( in case you want to get a little bit more positive camber ! but the majority of the adjustment required will be tending negative ) , then position the adjusted mounts on the prepared shock towers so that the inside tapped mount hole centres are 24 1/8” -613mm apart – ( 12 1/16” -306.5mm from the centreline of the car.)
The top surfaces of the mounting plates should be in same plane as each other across the car and should be in the same plane as each other from the front edge to the rear edge – this will be at exactly the same angle as the pivot points of the lower wishbones ( this angle can be determined by placing two 5/8” shafts through the front & rear wishbone mount on each side – while you have the shafts in you can also check the correct alignment of these mounts – the 2 shafts should be parallel to each other viewed from the side and should be equidistant at the front & rear when viewed from above or underneath.
Once plates are positioned correctly – tack into position and then fully weld as per the original plates.
As the main adjusting plate and the buffer plate are joined, it is necessary to slacken off the 2 buffer bolts as well as the 4 shock absorber bolts when adjustments are made.
Ensure that the length of all mounting bolts are of the correct lengths ( the bolts should only just protrude through the sliding mount plate as there is only a small gap between the bottom of this plate and the top of the tower. )
We are now supplying : 8 1.25” x .375” UNF grade 8 bolts, 8 plain flat washers , 8 spring washers for retaining the shockers – originally the bolts used were 1” x .375” UNF grade 5 , however to ensure complete penetration of the bolts into the adjusting plate it is recommended to use the 1.25” bolts along with the plain flat washers and spring washers supplied. ( The addition of the plain washer helps ensure that the spring washer does not dig into the shocker plate and also uses up some of the extra .25” of length ) . It is important that when the bolt, washer , shocker assembly is bolted on, that the end of the bolt does not extend more than 1- 2 mm past the bottom of the plate or otherwise it will foul on to the top of the tower. If the bolts are too long , linish the ends to suit. ( You may like to bolt up each shock to the assembly before positioning it on the tower to check out how much thread is exposed at the bottom of the adjusting plate. )
The main adjustment plate is made of machined high quality 350 Grade steel, so as to reduce the possibility of stripping threads.
******************************************************************************************************************************
Hello Doug,
I have attached a copy of our AH540 fitting instructions, that also give some info on adjusting the castor. I think most people would go for around 1 degree negative camber for road going Healeys. For competition maybe 3 – 5 degrees negative.
Kind regards
Greg Kilmartin
Kilmartin Automotive Sheetmetal
************************************************************************************************************************************************
AH 540 ADJUSTABLE FRONT SHOCK MOUNT PLATES
( Please read completely before beginning installation )
December 2015
Basically the aim in fitting these mounts is to position each plate to replicate the position of the original plates as far as the height and forward/aft positioning, and to have the slotted holes positioned so that negative camber can be obtained ( the further inwards each plate is positioned in towards the centreline of the car : the more negative camber is obtained )
On the original shock mount plates the distance between the inside shock mount holes is 24 1/8”- 613mm ( between centres )
Screw adjusting plates out until the tapped hole is approx 5mm from edge of slot ( in case you want to get a little bit more positive camber ! but the majority of the adjustment required will be tending negative ) , then position the adjusted mounts on the prepared shock towers so that the inside tapped mount hole centres are 24 1/8” -613mm apart – ( 12 1/16” -306.5mm from the centreline of the car.)
The top surfaces of the mounting plates should be in same plane as each other across the car and should be in the same plane as each other from the front edge to the rear edge – this will be at exactly the same angle as the pivot points of the lower wishbones ( this angle can be determined by placing two 5/8” shafts through the front & rear wishbone mount on each side – while you have the shafts in you can also check the correct alignment of these mounts – the 2 shafts should be parallel to each other viewed from the side and should be equidistant at the front & rear when viewed from above or underneath.
Once plates are positioned correctly – tack into position and then fully weld as per the original plates.
As the main adjusting plate and the buffer plate are joined, it is necessary to slacken off the 2 buffer bolts as well as the 4 shock absorber bolts when adjustments are made.
Ensure that the length of all mounting bolts are of the correct lengths ( the bolts should only just protrude through the sliding mount plate as there is only a small gap between the bottom of this plate and the top of the tower. )
We are now supplying : 8 1.25” x .375” UNF grade 8 bolts, 8 plain flat washers , 8 spring washers for retaining the shockers – originally the bolts used were 1” x .375” UNF grade 5 , however to ensure complete penetration of the bolts into the adjusting plate it is recommended to use the 1.25” bolts along with the plain flat washers and spring washers supplied. ( The addition of the plain washer helps ensure that the spring washer does not dig into the shocker plate and also uses up some of the extra .25” of length ) . It is important that when the bolt, washer , shocker assembly is bolted on, that the end of the bolt does not extend more than 1- 2 mm past the bottom of the plate or otherwise it will foul on to the top of the tower. If the bolts are too long , linish the ends to suit. ( You may like to bolt up each shock to the assembly before positioning it on the tower to check out how much thread is exposed at the bottom of the adjusting plate. )
The main adjustment plate is made of machined high quality 350 Grade steel, so as to reduce the possibility of stripping threads.