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Fw: OHC Chains and belts

To: <datsun-roadsters@autox.team.net>
Subject: Fw: OHC Chains and belts
From: "The Belgian Roadster" <chriss@euregio.net>
Date: Fri, 9 Mar 2001 16:12:48 +0100
-----Urspr|ngliche Nachricht-----
Von: The Belgian Roadster <chriss@euregio.net>
An: Ben Zech <motormite@hotmail.com>
Datum: Freitag, 9. Mdrz 2001 15:48
Betreff: Re: OHC Chains and belts


>Hi Ben,
>I ordered H20 parts to compare them to U20.
>Pistons can be used but are dished - not flat - so you have to
>reconsider the compression ratio.
>Crankshaft has the same size everwhere, but not counterweighted.
>Bushings for crank and jackshaft are the same.
>Lower tensioner - only the part that touches the chain can be used.
>Chains - Chains are available aftermarket from Ross or Stan Chernoff
>or new here in Europe.
>Camgear, jack gear inner and outer and crank gear are different in
>offset, as H20 is single chain only.
>
>Stock U20 chains and stock U20 flat top pistons oversize 1 are still
>available here.
>H20 bushings for jack and crank, suitable for U20 also available.
>H20 chain tensioner, only the top not the body, can be used as U20
>lower tensioner.
>
>But there is no replacement kit available right now!
>If the Nissan-Renault meeting about Z and roadster parts will be
>succesfull, stock parts will probably be rebuild.
>
>Regards,
>Chris
>
>-----UrsprC<ngliche Nachricht-----
>Von: Ben Zech <motormite@hotmail.com>
>An: chriss@euregio.net <chriss@euregio.net>
>Datum: Freitag, 9. MC$rz 2001 13:33
>Betreff: Re: OHC Chains and belts
>
>
>>I am sorry to be so ignorant, but are you saying that a compatible
>>replacement(s) are readily avaiable for the SRL311 timing chain
>setup?
>>If so, please give us all a list of part numbers, pricing and if
they
>are
>>available from you let us know. My understanding is that you are a
>Nissan
>>dealer.
>>I am ready to purchase these parts if they are going to be cheaper
>>alternative.
>>Thank You, Ben
>>
>>
>>BZ/RZ/NC/SPL/SRL/"SEROC"
>>motormite@hotmail.com
>>
>>
>>
>>----Original Message Follows----
>>From: "The Belgian Roadster" <chriss@euregio.net>
>>Reply-To: "The Belgian Roadster" <chriss@euregio.net>
>>To: "Marc Sayer" <marcsayer@home.com>,   "Roadster list"
>><datsun-roadsters@autox.team.net>
>>Subject: Re: OHC Chains and belts
>>Date: Fri, 9 Mar 2001 11:49:39 +0100
>>
>>Hi all,
>>We all have to wait the famous meeting I told you about and hope
that
>>Renault believes in our roadsters.
>>About the H20 conversion... I ordered the H20 chain as well as the
>>tensioner and the gears.
>>Chain is different, gears have the same tooths but the offset is
>>different, bore hole for tensioner body is at a different position
>and
>>has no valve inside, the top which touches the chain can be used.
>>
>>Regards,
>>Chris
>>BTW Both chains are still available in Europe.
>>
>>-----UrsprC<ngliche Nachricht-----
>>Von: Marc Sayer <marcsayer@home.com>
>>An: Roadster list <datsun-roadsters@autox.team.net>
>>Datum: Freitag, 9. MC$rz 2001 05:41
>>Betreff: Re: OHC Chains and belts
>>
>>
>> >datsunmike wrote:
>> >>
>> >> While I admire the engineering ingenuity that went on to convert
>to
>>belts
>> >> from chains, I think for the majority of you it would be cheaper
>to
>>buy all
>> >> the chains, gears and guides and far easier or convert to
another
>>engine.
>> >
>> >The problem is the timing sets for the U20 are NLA now. Somebody
is
>>going to
>> >have to ante up to reproduce those parts, and that's expensive.
>That
>>means the
>> >parts are going to be expensive, even more expensive than they
>were,
>>which was
>> >already expensive. I talked a bit with Les about trying to develop
>a
>>kit that
>> >used cheaper and more readily available parts, but from what I
>could
>>see, by the
>> >time you made adapters etc., it would be as costly as reproducing
>the
>>correct
>> >parts.
>> >
>> >Roadsters are in the limbo zone right now, where factory parts are
>>drying up and
>> >there aren't any repro parts replacing them yet. Most Brit cars
>went
>>through the
>> >same thing back in the late 80s. To make things worse, there are
>far
>>fewer
>> >Roadsters than there were of most of the Brit cars. That means
>sales
>>volume will
>> >not support the repro parts as easily and therefore prices will
>have
>>to be
>> >higher. The Nissan timing set ran about $700 if I recall
correctly,
>>so a repro
>> >set will likely have to sell for twice that, or more! And even
then
>>the
>> >manufacturer won't see any return on their investment for quite a
>>while. They
>> >only way folks will pay those sorts of prices is if the car value
>>warrants it,
>> >and that is going to take time. That increase in value will also
>make
>>the cars
>> >unsuitable for the street. :-( Again, the same thing happened to
>the
>>Brit cars.
>> >Back in the 80s and early 90s you saw MGBs on the street all the
>>time, but not
>> >anymore. I used to see a dozen a week or so, now I might see a
half
>>dozen in a
>> >year. My $2500 72 MGB now is easily worth over $6500. And this is
>for
>>a car
>> >where there are still a lot of them left (there's probably more
>70-73
>>MGBs left
>> >just in CA than all the Roadsters in the world), so the effects
>will
>>be even
>> >more severe with the Roadsters. I'm betting that in 3-5 years an
>>honest
>> >restoration on a 2 liter will run well over $50k to do, and will
>>require some
>> >parts to be made by hand. Its sad but true that right now if
>someone
>>is sitting
>> >on a stockpile of parts, they would be just plain nuts to sell at
>>current
>> >values. The parts are *guaranteed* to go up in value a bunch in
the
>>next few
>> >years. Luckily, most of the Roadster community (and Vendors) are
>>neither sane
>> >nor profit motivated. :-) I remember folks sitting on stocks of MG
>>parts for
>> >several years because they knew the parts would skyrocket in
value.
>I
>>know of
>> >several people who made quite a piece of change. I also know of
>>several who
>> >waited too long to offer their stash for sale and found Moss had
>>already
>> >reproduced the parts and the value had dropped off considerably,
>but
>>even they
>> >made money. Sadly I wasn't one of them, I sold my parts at fair
>value
>>'till they
>> >were gone and made friends but very little money. I'm betting most
>of
>>the
>> >Roadster vendors will do the same, and end up with lots of
friends.
>>:-)
>> >Hopefully they will also make enough money to start reproducing
>parts
>>or running
>> >Roadsters are going to become as rare as a model T.
>> >
>> >--
>> >Marc Sayer
>> >82 280ZXT
>> >71 FJ510
>>
>>_________________________________________________________________
>>Get your FREE download of MSN Explorer at http://explorer.msn.com

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