Irony
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| posted on 17/2/10 at 10:08 AM |
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Duplex Timing on a V8
After taking my timing cover off my V8 I find more evidence that the engine has been rebuilt in the past. The standard timing cover came off and
revealled a shiny very new looking duplex timing unit.
Does anyone know the exceptable chain stretch (it looks brand new, I could have put on yesterday)? And how you get it off. Do I need a gear puller
or can I just hammer it off with a suitable bit of wood?
Cheers
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MakeEverything
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| posted on 17/2/10 at 10:30 AM |
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Hammer the chain off with a bit of wood???  hope not!
There should be a tensioner that can be released to give you some slack.
Acceptable slack should be between 5 and 10mm?
Kindest Regards,
Richard.
...You can make it foolProof, but youll never make it Idiot Proof!...
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Irony
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| posted on 17/2/10 at 11:23 AM |
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When I said Hammer I meant, use a bit of dowel to gently tap the gears off the shaft. I don't recall any sort of tensioner.
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Agriv8
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| posted on 17/2/10 at 11:35 AM |
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no tensioner ( its 60's technology we are talking about ).
suspect it is seized on you need to slyde it off the crank and the cam in unison.
to unseize it I have always suceeded with a bit of gentle tapping with nylon mallet.
regards
Agriv8
Taller than your average Guy !
Management is like a tree of monkeys. - Those at the top look down and see a tree full of smiling faces. BUT Those at the bottom look up and see a
tree full of a*seholes .............
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Richard Quinn
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| posted on 17/2/10 at 11:40 AM |
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No tensioner on an RV8. I think they are just on a keyway.
Damn - just spotted AgriV8's post and wasted some electrons!
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mookaloid
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| posted on 17/2/10 at 12:39 PM |
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quote:
Originally posted by Richard Quinn
No tensioner on an RV8. I think they are just on a keyway.
Damn - just spotted AgriV8's post and wasted some electrons!
being pedantic - I don't think you wasted any electrons - you just moved some about!  
"That thing you're thinking - it wont be that."
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Richard Quinn
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| posted on 17/2/10 at 02:26 PM |
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That's ok then. I don't feel so bad now
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Canada EH!
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| posted on 17/2/10 at 02:30 PM |
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There are pullers, I have one, look for 3 threaded holes in the cam gear should be SAE thread.
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jollygreengiant
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| posted on 17/2/10 at 05:14 PM |
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As all above, you should be able to pull off both, once retaining bolt on cam pulley is undone. Should just require a little wriggling or at worst a
puller.
Oh and duplex chain was standard.
Beware of the Goldfish in the tulip mines. The ONLY defence against them is smoking peanut butter sandwiches.
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Andy S
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| posted on 19/2/10 at 02:24 PM |
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The standard chain was not a Duplex - The standard chain is a Morse. A Duplex requires two rows of rollers which means in effect two sprockets on each
component. The Morse has one row of wide teeth and is in short terms cr4p.
Andrew
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