Joined
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162 Posts
Had a chance to read all the back threads the last few days and I appreciate all the info and chatter.
I have a passle of 650 unit cranks most of them with mushroomed timing side ends.
What is the proper OD on the oil journal? how small can they get and still get a good seal for pressure?
Is a sleeve a proper fix and if so is it a Triumph part? I've heard theres an undersize so i'm guessing it has a specific seal size.
i have 2 or 3 cut away flywheel 1966 cranks. does anyone know why they went to the cut down flywheel? By cut away I mean the flywheel has wide 'lobed' section to the narrower full circumference.
Several of my cranks have mangled alternator studs. These are'nt lefthanded threads in the cranks are they? I'd imagine a little heat and penetrating oil (i'm a marvel mystery oil fan) is the way to proceed. Did they change threads in these over the years or are all of them E3114's
What radius is the connecting rod journal side for a undersize turn?
The manuals have quite a tolerance range for the journals, does anyone have a preferred size tolerance or a brand of con rod shells for superior fitment?
One of the reasons I like messing with these old Triumphs is the social side of the process. Up here in BC i had to dig around to find anyone that could do any Triumph crank machining and found an old Vincent restorer that has a machine shop. Chatted with him for quite a while, great stories of course, wonderful old timer.
So whaddya think, should I cherry all of them with new turns or just do one at a time? I have 7 or 8 sitting around.
the bottom row, right is what I'm referring to as a cutaway crank:
http://www3.telus.net/Art-Adventures/08TriumphPixA/100_3210.jpg
I have some pix of the parts i scrounged up last year if people are looking for odds and sods. I'll be using some of them this summer to get my two 500's and my TR6R up and running but certainly not all of them. Anyone cruising up here in Canuckistan should drop in and visit!
http://www3.telus.net/Art-Adventures/08TriumphPixA/Parts&Rust/
Time for some more coffee! Thanks for all the good info so far and the vicarious adventures.
I have a passle of 650 unit cranks most of them with mushroomed timing side ends.
What is the proper OD on the oil journal? how small can they get and still get a good seal for pressure?
Is a sleeve a proper fix and if so is it a Triumph part? I've heard theres an undersize so i'm guessing it has a specific seal size.
i have 2 or 3 cut away flywheel 1966 cranks. does anyone know why they went to the cut down flywheel? By cut away I mean the flywheel has wide 'lobed' section to the narrower full circumference.
Several of my cranks have mangled alternator studs. These are'nt lefthanded threads in the cranks are they? I'd imagine a little heat and penetrating oil (i'm a marvel mystery oil fan) is the way to proceed. Did they change threads in these over the years or are all of them E3114's
What radius is the connecting rod journal side for a undersize turn?
The manuals have quite a tolerance range for the journals, does anyone have a preferred size tolerance or a brand of con rod shells for superior fitment?
One of the reasons I like messing with these old Triumphs is the social side of the process. Up here in BC i had to dig around to find anyone that could do any Triumph crank machining and found an old Vincent restorer that has a machine shop. Chatted with him for quite a while, great stories of course, wonderful old timer.
So whaddya think, should I cherry all of them with new turns or just do one at a time? I have 7 or 8 sitting around.
the bottom row, right is what I'm referring to as a cutaway crank:
http://www3.telus.net/Art-Adventures/08TriumphPixA/100_3210.jpg
I have some pix of the parts i scrounged up last year if people are looking for odds and sods. I'll be using some of them this summer to get my two 500's and my TR6R up and running but certainly not all of them. Anyone cruising up here in Canuckistan should drop in and visit!
http://www3.telus.net/Art-Adventures/08TriumphPixA/Parts&Rust/
Time for some more coffee! Thanks for all the good info so far and the vicarious adventures.