DogT
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- Joined
- Jan 20, 2009
- Messages
- 7,394
I am confused. There seem to be a lot of different types of isolastics out there. Here is a picture of what came out of my 69 S.
The PTFE washers were completely disintegrated. The shims are not in the picture. On the front iso, the two small rubbers were completely loose on the spacer and on the rear, they are rather loose too. When I look in the spares list, I see several parts I do not have. On page 8, I do not have B5 06.0772 (2) and B16 06.0771 (1), the front and rear engine mounting seating spacer. Do I need these parts with replacement of original parts? My other option is to order the Norvil replacement isolastics from the UK, or are they available here in the US? I understand that I have the option too of using the Hemmings adjusters, I would still have to get parts, or upgrading to the MK3 system, but that would involve some machine work on the front mount plus parts. The parts for the original system is around $130, and the Norvil replacements are about $70 each, so it is a toss up as far as price. I guess the Norvil Isos will look different on the bike?
Also in the Haynes manual, it doesn't show the engine mounting seating spacer, nor does the commando workshop manual, but that one is real hard to read, it is an assembled cutaway drawing. The Haynes book shows circlips on the spacer tubes I guess to keep the small rubbers in place. I also assume this was an improvement from the 69 bike.I found the Mike Randell page on isolastics and that too was quite confusing to me.
Any help would be appreciated.
Thanks,
Dave
The PTFE washers were completely disintegrated. The shims are not in the picture. On the front iso, the two small rubbers were completely loose on the spacer and on the rear, they are rather loose too. When I look in the spares list, I see several parts I do not have. On page 8, I do not have B5 06.0772 (2) and B16 06.0771 (1), the front and rear engine mounting seating spacer. Do I need these parts with replacement of original parts? My other option is to order the Norvil replacement isolastics from the UK, or are they available here in the US? I understand that I have the option too of using the Hemmings adjusters, I would still have to get parts, or upgrading to the MK3 system, but that would involve some machine work on the front mount plus parts. The parts for the original system is around $130, and the Norvil replacements are about $70 each, so it is a toss up as far as price. I guess the Norvil Isos will look different on the bike?
Also in the Haynes manual, it doesn't show the engine mounting seating spacer, nor does the commando workshop manual, but that one is real hard to read, it is an assembled cutaway drawing. The Haynes book shows circlips on the spacer tubes I guess to keep the small rubbers in place. I also assume this was an improvement from the 69 bike.I found the Mike Randell page on isolastics and that too was quite confusing to me.
Any help would be appreciated.
Thanks,
Dave