Reply With Quoteg'day mick from my little knowledge its only when the Holden clutch is used that this helps, because of the heavy pressure plate action, been trying to get more info on other pressure plates (tea20 $200)to help with this problem. markus
Lord Jock
Can anyone throw some light on the following!
Why was the Johnson Clutch Modification necessary when a Holden motor was fitted to a Series One or Two vehicle, if all Land Rover clutch components were still used?
Was there a modification for Series Three vehicles fitted with Holden motors?
Cheers, Mick.
1974 S3 88 Holden 186.
1971 S2A 88
1971 S2A 109 6 cyl. tray back.
1964 S2A 88 "Starfire Four" engine!
1972 S3 88 x 2
1959 S2 88 ARN 111-014
1959 S2 88 ARN 111-556
1988 Perentie 110 FFR ARN 48-728 steering now KLR PAS!
REMLR 88
1969 BSA Bantam B175
Fossicker
Supporterg'day mick from my little knowledge its only when the Holden clutch is used that this helps, because of the heavy pressure plate action, been trying to get more info on other pressure plates (tea20 $200)to help with this problem. markus
Lord Jock
Howdy marcus,
reading the Booklet put out by Johson's for their Holden Conversions it souns as though they still had the Holden Clutch, but i cannot be sure.
http://www.aulro.com/afvb/local_link...&catid=7&id=53
Cheers, Mick.
1974 S3 88 Holden 186.
1971 S2A 88
1971 S2A 109 6 cyl. tray back.
1964 S2A 88 "Starfire Four" engine!
1972 S3 88 x 2
1959 S2 88 ARN 111-014
1959 S2 88 ARN 111-556
1988 Perentie 110 FFR ARN 48-728 steering now KLR PAS!
REMLR 88
1969 BSA Bantam B175
AT REST
In 1971 I fitted a 186 to my 2A Station Wagon in Alice Springs. Got the Johnson kit from their Agent in Darwin. Had a Holden Clutch at that time.
The clutch was so heavy if the pedal was not modified that it regularly sheared the clutch cross-shaft pins.
You cannot fit a Land Rover pressure plate to the Holden flywheel as the pitch circle of the mounting holes breaks through the edge of the flywheel. Back in Sydney a Vauxhall Cresta pressure plate (slightly smaller in diameter than the Land Rover pressure plate) was sourced that fitted the Holden flywheel bolt holes and then I could use a standard Land Rover friction plate.
The Holden flywheel was later replaced with a larger diameter one (made by the late Roy Sim) so a standard Land Rover pressure plate could also be used. By this time the Vauxhall and a couple of others that could be adapted to fit were getting hard to find.
I am not sure whether Johnsons later made a larger diameter flywheel but others did in steel and they glazed very quickly - so called engineers.
Bob
Fossicker
Supporterg'day mick yes it does look like that in the photo's, not to shore until i can get a look at holden pressure plate, to compare with others that maybe available. as bob says they are heavy so im looking elseware, cheer's markusOriginally Posted by mick88
Fossicker
Supporter[QUOTE=marc;1909972]g'day mick yes it does look like that in the photo's, not to shore until i can get a look at holden pressure plate, to compare with others that maybe available. as bob says they are heavy so im looking elseware, cheer's markus. I wonder if the larger flywheel was used would the starter motor mounting point need to be redrilled or maybe different adapter plate? cheers markus.
AT REST
[quote=marc;1914325]Hi Mark,
The only diameter that changes is the area where the Land Rover Pressure Plate mounts. It is just a little bit bigger. BTW Roy Sim lived at Hornsby Heights. I will PM you with another suggestion.
Bob
Lord Jock
[quote=marc;1914325]The flywheel for the Marks Nissan 5 Speed to Holden Adaptor kit is a larger heavier one but is stepped so that it retains a Holden ring gear.
Cheers, Mick.
1974 S3 88 Holden 186.
1971 S2A 88
1971 S2A 109 6 cyl. tray back.
1964 S2A 88 "Starfire Four" engine!
1972 S3 88 x 2
1959 S2 88 ARN 111-014
1959 S2 88 ARN 111-556
1988 Perentie 110 FFR ARN 48-728 steering now KLR PAS!
REMLR 88
1969 BSA Bantam B175
TopicToaster
G'day All,
My Holden 202 powered Long Wheel Base Series 3 ute - Rebus was converted a long time before I bought him.
Were Holden or Land Rover clutches and pressure plates most commonly used for the conversion?
Would the starter motor be Holden or Land Rover?
Being a vehicle with a number of previous owners I am not sure what has been done to make Rebus the damn fine beast that he is.
Kind Regards
Lionel
AT REST
Hi Lionel,
At first Holden clutches were the most likely used - particularly with the Johnson kit from Geelong. Their kits were very well made and marketed throughout Australia. They are cast and machined steel.
The fabricated and welded steel adaptors made by Roy Sim in Sydney and others used the Vauxhall and a couple of other pressure plates and Land Rover clutch plates. later Roy designed a Holden flywheel that was slightly larger in diameter and would take a standard Land Rover clutch complete.
Cast and machined aluminium adaptors were/are made but were often not made to the tolerances required, similarly machined steel flywheels to use Land Rover clutches glazed up badly and were a failure.
I think all these kits used the Holden Starter Motor.
There were also some early adaptions using a re-drilled original alloy Land Rover 4 cyl engine to flywheel adaptor that did use the Land Rover Starter Motor. I have seen grey Holden, Vanguard and Falcon motors fitted up this way. Don't know how well they were put together and if they lasted.
Glad you are happy with your vehicle that has obviously stood the test of time. Best thing we could do to a Land Rover in the 'seventies. A 186 done properly with either an increased sump capacity or an engine oil cooler, seal up the three holes in the bottom of the distributor, slight adjustments to the carburettor, change the differential ratios to 4.3:1 (from Rover 90s) and get over 17mpg from a 109" !!!
Bob
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