Tinker
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| posted on 6/12/03 at 10:15 PM |
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Sprocket Adapter - you're having a larf...
As a competant, time served technical engineer. I feel very worried that the following picture of an item I have seen today, has actually been used on
a car (yes - really!). With no apparent securing mechanism to hold the adapter on to the sprocket - and it doesn't even look as though it's
been hardened/tempered or anything. Under scrutiny the welding is a bit dodgy too, it is so out of true!
If you ever see this being used on a BEC - or you have one... quickly take it back to where ever it came and demand a safe replacement. IMO this item
should never have got through SVA (if it ever has?) and is very dangerous in it's current form. It could save you life...
TELL US WHAT DO YOU GUYS THINK?
 
Rescued attachment Pc060141.jpg
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Tinker
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| posted on 6/12/03 at 10:16 PM |
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And this...
 
Rescued attachment Pc060144.jpg
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Staple balls
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| posted on 6/12/03 at 10:18 PM |
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That looks really, really shoddy.
the teeth look far too shallow (10mm length?) and look like they've been distorted pretty badly.
i really really hope no-one uses that
[Edited on 6/12/03 by Staple balls]
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Hellfire
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| posted on 6/12/03 at 10:22 PM |
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How is it held on?
If it's the adapter for a BEC - how is it held on? Surely, it would slide off of the engine sprocket wouldn't it?
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chrisg
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| posted on 7/12/03 at 12:20 AM |
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mmmmmmm....
Looks familiar.
Cheers
Chris
Note to all: I really don't know when to leave well alone. I tried to get clever with the mods, then when they gave me a lifeline to see the
error of my ways, I tried to incite more trouble via u2u. So now I'm banned, never to return again. They should have done it years ago!
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bob
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| posted on 7/12/03 at 08:21 AM |
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Chris
I somehow knew where this was going before i opened this post up,i seem to remember one of these breaking not to long ago.
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theconrodkid
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| posted on 7/12/03 at 08:29 AM |
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looks like the standard end of some ford props with a joint in the middle,so what did this prop come off then???
who cares who wins
pass the pork pies
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madforfishing
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| posted on 7/12/03 at 08:46 AM |
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God, what a mess.
I know this is a bit out of section topic but...
Just as a thought - Bikes usually have the rear sprocket mounted through rubber bushes to eliminate the snatch effect on the chain (which is also O
ringed) when you grab a handful of throttle. How do you get round this prob with a shabby system like this ? Does the output shaft bearing from the
B.E take it all ? If so it'll not last many miles.
Also B.E.s are usually driving the sprocket with the loads being beared on the output bearing at 90 degrees. Can't do the gearbox inards much
good driving the BEC 'end on', can it ?
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chrisg
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| posted on 7/12/03 at 11:32 AM |
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I think quite a few people know where this came from, but I'm not going to say 'cos I think there's a court case in the offing.
Cheers
Chris
Note to all: I really don't know when to leave well alone. I tried to get clever with the mods, then when they gave me a lifeline to see the
error of my ways, I tried to incite more trouble via u2u. So now I'm banned, never to return again. They should have done it years ago!
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Liam
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| posted on 7/12/03 at 05:40 PM |
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!!!
I presume that must be made of the innards of the original bike sprocket welded to a bit of shaft - or how did they cut the spline?
I can see it would stay on (for a while anyway) if the sliding joint doesn't allow enough movement for the spline to disengage, but it's
not exactly sound engineering practice!
What baffles me is why there is that length of shaft after the sprocket adaptor. With the movement in that rubber mounted centre bearing, that
central uj must flail around like a skipping rope. Must be what has totally shafted the teeth in that spline (which surely must be hard if
that's made from a bike sprocket).
<shudder>
Liam
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MK
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| posted on 7/12/03 at 07:02 PM |
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Hi all, with regards to this prop shaft, we would like to reply, but since there is a possibility of two seperate court cases pending, for the moment
it would not be wise for us to comment.But as and when we will.
m.k.
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ned
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| posted on 10/12/03 at 11:02 AM |
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being brave and abstaining from comment, perhaps related to this thread:
http://locostbuilders.co.uk/viewthread.php?tid=7874&page=2 ?
See post 4th from end by woodster.
Ned.
beware, I've got yellow skin
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chrisg
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| posted on 10/12/03 at 06:25 PM |
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Well I supose it has to be said, the propshaft is the work of Sports Power Drive, and the court action results from SPD going back on their word and
not paying for the repair.
There is also some doubt about the SVA status of the car and indeed the identity.
My sympathies are with Woodster
Cheers
Chris
Note to all: I really don't know when to leave well alone. I tried to get clever with the mods, then when they gave me a lifeline to see the
error of my ways, I tried to incite more trouble via u2u. So now I'm banned, never to return again. They should have done it years ago!
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Jon Ison
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| posted on 10/12/03 at 10:41 PM |
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mmmmmmmmmm, the very same guys that sent me several e~mails regards my comments on the subject at the time, i did'nt then and wont now reply to
them or make them public, but i guess you dont have to be the brightest bulb in the world to guess their content.
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Jon Ison
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| posted on 10/12/03 at 10:47 PM |
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oh, this was the post that was the subject of the e~mails i recieved
"read the above posts carfully, ok MK is repairing the car but who is footing the bill ?
bit like saying it was ADR's fault your mondeo got trashed on the M1.
I have seen the car at BTW not just posting speculation".
the aim of the post was to make a point i IMO felt need'd making, in no way IMO, was the fact that MK was doing the repair where they
responsible in the 1st place
like i said if you trash your Mondeo you dont blame ADR the company that repaired it for you for the accident in the 1st place.
thats it me done.
merry xmas all.
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chrisg
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| posted on 11/12/03 at 12:24 AM |
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I don't think Woodster trusted SPD to fix it.
Cheers
Chris
Note to all: I really don't know when to leave well alone. I tried to get clever with the mods, then when they gave me a lifeline to see the
error of my ways, I tried to incite more trouble via u2u. So now I'm banned, never to return again. They should have done it years ago!
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suparuss
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| posted on 11/12/03 at 06:10 PM |
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i dont think id trust them either, that shaft is absolutely appalling. i think the spline bit must bolt onto hte sprocket output on the engine before
bolting the rest of the shaft on, or it would fly straight off, i have no words to describe whoever designed that and deemed it safe for the road,
without landing myself in bother. someones obviously taken the A-team a bit too seriously and mixed that in with a "how to build so and so for
so much" book, without the slightest bit of common sense or technical knowledge.
2 cents over,
Russ.
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suparuss
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| posted on 11/12/03 at 06:17 PM |
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ps- the splines arent actually that hard, just the outer part where the teath are is hardened, i machined one a bit ago while preparing to do
something similar to waht spd have done (although i had bougt some 25mm solid round silver steel for the shaft and several large bearings mounted in
cast iron flanges ready for the job) and it was really easy to machine.
Russ.
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MikeR
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| posted on 12/12/03 at 01:12 AM |
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Jon, thanks for explaining your previous post, I read it at the time and didn't quite get the point (as it had been said the other company, not
MK, was footing the bill).
Oh, and thanks for someone explaining what is going on (aledgedly - don't want to get sued either !) I was starting to form the impression that
it was MK's work and was worrying about all the owners of BEC's he'd made. Glad to hear its not MK!
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woodster
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| posted on 28/2/04 at 02:38 PM |
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more prop pics
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madforfishing
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| posted on 28/2/04 at 02:47 PM |
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Woodster, where ?
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madforfishing
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| posted on 28/2/04 at 02:56 PM |
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Woodster, sorry...me being a thickie.
Looks messy.
Hope it all gets sorted.
Can't say too much of course.
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dblissett
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| posted on 28/2/04 at 09:31 PM |
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?
is this company or business now up for sale on ebay
mmmmmm
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Staple balls
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| posted on 28/2/04 at 09:43 PM |
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yeah
auction ended with no bidders iirc
[Edited on 28/2/04 by Staple balls]
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