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Author Topic: Project "Abfangjaeger"  (Read 2670 times)

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grumbern

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on: May 08, 2016, 06:22:40 am
One possibility to spend your saturday morning, may be to drive outside the "Spessart" towards Tübingen and collect avon machinery.
Should be a 64 model, 750ccm, but not all parts are correct and of course not complete ;)




May she become a racer (after that didn't work with the Chief)!
Andreas

P.S.: Start of project might be at a later moment, due to some other projects... ::)


Adrian II

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Reply #1 on: May 08, 2016, 10:46:57 am
Glutton for punishment, nicht wahr?  ;D

Looking at that top yoke on those forks, it would be tempting have a good look at the engine and frame numbers...

http://www.royalenfields.com/2012/07/this-royal-enfield-vax-interceptor-is.html

https://www.youtube.com/watch?v=PPp_kU9YLgw

OK, it is probably not a VAX Interceptor.

Yes, you could build a café racer, though I think the street scrambler lines of the export Series 1 model absolutely do justice to the bike. Something like that would compliment the Chief nicely.



Picture from ebay UK

A.
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grumbern

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Reply #2 on: May 08, 2016, 03:55:29 pm
It's not a VAX, I checked that as soon as I saw it. The owner claimed it to be a 61, but from the engine and frame numbers its a 63. The yoke isn't correct for that year though (that's what made me think it was a VAX first, too). But it definitely is a 750.

We'll see, what it turns out to be like, but plans were to build a CR from the Chief, too, at first. But this one's gotta be blue, that's for sure!

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Glutton for punishment, nicht wahr?  ;D

Well, that's what the seller said, or at least something like that ;D
Andreas


Adrian II

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Reply #3 on: May 08, 2016, 07:25:30 pm
Let me know if you want a few Euros for that top yoke.  ;D

Hitchcock's have a used twin clock alloy yoke for the S1 at the moment which looks as though it will polish up OK. £110 + VAT and post, a new one is £210 + VAT and post.

http://www.hitchcocksmotorcycles.com/http://www.hitchcocksmotorcycles.com/pictures/category8748/large/used1984.jpg

A.
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grumbern

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Reply #4 on: August 01, 2016, 04:08:13 am
Has anyone got any idea, what exactly this bike is? I've been wondering for some time now and what makes me wonder is the fact, that it has the Fury yokes and a blanked rev counter terminal. Have there been versions without a rc? I am not sure, what I have here and if they changed these parts on the bike, or if they were original...

I guess RE made some small batches of any kind of configuration, as you can often see strange arrangements that don't appear on any chart. Has anyone any knowledge of anything similar to mine?

The seat and subframe aren't correct, as they were bought by the previous owner.
Thanks,
Andreas


ace.cafe

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Reply #5 on: August 01, 2016, 06:10:58 am
My guess is that the greatest likelihood is that it was built as bits and pieces from various bikes over the years. This accounts for the wide variety of parts.


Adrian II

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Reply #6 on: August 01, 2016, 12:41:41 pm
In the words of Royce Creasey, you might have a "post-industry thoroughbred", if the term bitsa sounds a little harsh.  :)

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Damon

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Reply #7 on: August 01, 2016, 01:25:03 pm
The seat and rear hoop look to be from either a later MK1A or a Series 2.
from the info and parts searching I've done over the last year for my 1965 Mk1 rebuild, they could come with or without the rev counter.
 Welcome to the Interceptor Club!!

Damon
2005 Royal Enfield Bullet 612 Continental
1965 Royal Enfield Interceptor MK1
2005 Royal Enfield Bullet 612 Continental
1965 Royal Enfield Interceptor Mk1.


grumbern

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Reply #8 on: August 01, 2016, 03:28:55 pm
"post-industry thoroughbred", that term I have to remember ;D

Damon, that's a piece of information that is very useful to me. So there would have been a kind of dummy instead of a rev counter? The subframe and seat are repros, bought by the preowner, as said, and therefore not the right ones ;)

I do have a frame for a Super Meteor/Constellation I guess. What exactly are the differences to the Interceptor? Are these longer?
Thanks,
Andreas


Damon

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Reply #9 on: August 01, 2016, 03:58:21 pm
I've not seen what might have been put in place of the Rev counter only the blanking plate, and my engine gasket set came with gaskets for the gearbox and the blanking plate.

Not sure the differences in the frames between the Interceptor and the Meteor/Constellation. I believe that the rear swing arm might have been shorter on the Connie and meteor then on the Mk1 Interceptor.
2005 Royal Enfield Bullet 612 Continental
1965 Royal Enfield Interceptor Mk1.


Arizoni

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Reply #10 on: August 01, 2016, 06:01:22 pm
According to, "Royal Enfield, The Postwar Models " by Roy Bacon, the Meteor (1952-1955), the Super Meteor (1955-1962), the Constellation (1958-1963) and Interceptor (1962-1968) had a 54 inch wheelbase.

The Interceptor Series II (1968-1970) and the Rickman (1970-1972) had a 57 inch wheelbase. (pp 167-169)

The book doesn't mention rake or trail so the differences could be due to that, the length of the trailing arm or an increase in the frame length.
Jim
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1999 Miata 10th Anniversary


Adrian II

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Reply #11 on: August 01, 2016, 09:39:26 pm
Quote
Damon, that's a piece of information that is very useful to me. So there would have been a kind of dummy instead of a rev counter?

There's a Bullet on ebay UK at the moment with a Series 1 style twin clock alloy top yoke and two speedometers fitted! ??? No, I don't know why either...



Or stay twin clock but add a 60's pattern Puca Smiths Electronic rev counter (I don't think that the Electra speedometer is too much of a mis-match):



Another alternative would of course be the Hitchcock's cafe racer alloy top yoke which is machined from the same casting but simply takes a switch (old-style light switch or ignition switch with adaptor plate), speedometer and ammeter).

And finally, if your Interceptor *is* a bit of a post industry thoroughbred, why not restore it as VAX Interceptor look-alike? Maximum points for style...

A.
Grumpy Brit still seeking 500 AVL Bullet perfection! Will let you know if I get anywhere near...


grumbern

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Reply #12 on: August 02, 2016, 03:09:21 am
Well, we'll see what it turns out like. But definitely blue! ;D
And I'll only use genuine, or selfmade parts as far as possible. These 80s or 90s speedos just don't fit.

I do have a alloy top yoke, that still needs a little attention. whatever fits best ;)


Adrian II

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Reply #13 on: August 02, 2016, 07:03:59 am
I would have used the matching Puca Smiths electronic speedometer (based on the mid/late 60's design) instead of the Indian speedo, but a) it was getting rather expensive, and b) the wiring was already a lot more complicated than I would like. (It looks a bit tidier than this now!)



Given your excellent refurbishment of the Indian Chief speedometer I'm sure you could source and repair a couple of mid-sixties instruments, but the Puca Smiths instruments are a possible alternative for someone who has the money and who also has better wiring skills than I do.  ;D

http://www.puca.co/productGF.html

A.

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grumbern

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Reply #14 on: October 23, 2017, 01:35:59 pm
Well, alittle progress has been made. Not much, but...

Started with a damaged "cockpit" that cost me a phonecall:






So I bent it back and filled the hole, using some Aluminum and rudimentary welding skills:












Some more welding and filing later:








Let's try it on. Got some genuine Smith's gauges, not RE but Triumph though:






A little more filing and sanding yet to do, then polish it.
Also got a maching mudguard carrier, notice the difference to the UK model:




So long,
Andreas


Adrian II

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Reply #15 on: October 24, 2017, 11:47:17 am
The longer mudguard carrier would suit a later Interceptor with the longer swinging arm, I understand.

Nice job with the top yoke/instrument panel repair. I had a damaged version of the same item which I cut back for a trials yoke. As it was in BETTER condition than the one you successfully repaired I should have let you have it!

The good news is that (somewhere) I have still have the mid-1960s Lucas light switch and the 41mm round steel insert for it that sits in the panel behind the main instruments. Would you like them?

A.
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grumbern

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Reply #16 on: October 24, 2017, 03:34:52 pm
Thanks Adrian, why not? I'll PN you my address.

The US-models should all have had the longer swinging arm and m.g.-carrier, as far as I know, although there are pictures with short ones?!
So long,
Andreas


grumbern

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Reply #17 on: December 17, 2017, 06:37:43 am
I could obtain a pair of cylinder barrels, one of them unluckily broke a fin during transit (got my money back though). So I prepared the broken fin and got some cast iron electrodes, but forgot to take along the grip, too - so it has to wait until I have that. :-[






What it says on the electrode box is promissing though (for those not familiar with German laguage, it says "Zylinder" in the purpose section of the description and you can guess what that is in English):




But I made some progress on the top yoke. After some sanding, filing and more sanding it looks pretty promissing:








Now it's up for glass blasting to be cleaned and after that sanded and polished. I hope the seams not to be seen that clearly as they are now. It's a big downside to using aluminium as different alloys have different colours.
So long,
Andreas


grumbern

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Reply #18 on: December 23, 2017, 05:21:08 am
The fin is welded. Not as nice as I hoped it to be, especially the root (not as much penetration as it should have). Nevertheless it will do, if not it would already have fallen off while hammering ;)




The welding with those nickel-electrodes is really strange and not quite comparable with steel ones. Completely different behaviour. But it works and with some experiance it shouldn't be any harder to do than with "normal" electrodes.
So long,
Andreas


grumbern

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Reply #19 on: January 20, 2018, 01:34:43 pm
The yoke is done, sanded and waiting to be polished:




Unfortunately, as expected the beads are still visible. Only hard to see on the picture, but clearly in real:




More tomorrow.
So long,
Andreas


grumbern

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Reply #20 on: January 22, 2018, 05:28:34 am
Hurray! After polishing the seam is nearly invisible and probably will remain unseen for someone who doesn't know.
I hope it will stay this way ::)

Speedo and tacho where set in place just for the looks, but the bezels will need some attention ;)








So long,
Andreas