Well I put mine back in and shimmed the tensioner to take up most the slack.
You should also shim the upper tensioner even with all new parts.
Just my two cents.
Jim
70 2000
-----
Subject: RE: U20 Lower chain guide needed
> Although I reinstalled the chain guide when I rebuilt my U20, it is a
> toss-up. I was told that before I put the new guide back in the car, that
> I should run a weld bead aliong the new one to reinforce it. This part
> breaks often and, as Fred pointss out, it can get shard of metal in the
> lower timing chain housing and cause some nasty consequences. I woud
> either leave it out or run a weld bead along a new one for reinforcement
> before installing a new one.
>
> Perry Smith
> '68 2000
>
> roadster katman <roadster@rcn.com> wrote:
> Hi Paul - I don't think you need to re-install the lower chain guide.
>
> When I rebuilt my U-20 I left it out and the engine is still going
> strong after about 15,000 miles. The old guide had broken, and I think
> the metal debris from when it got kicked around caused spun bearings. So
> I left it off during the rebuild.
>
> (Hmmn, were roadsters made by Nissan? Could have fooled me.)
>
> Fred
> So.SF, Ca
> '66 2L Lucy
>
> To: Roadsters
> Subject: U20 Lower chain guide needed
>
> Opened up two U20s from parts cars and found both had broken lower
> chain
> guides. My parts guide is a bit confused but my guess is I need Nissan
> part
> number 13068-25500. Sound right?
> Anybody know if they are still available from Nissan? My local
> dealers
> don't think roadsters were ever made by Nissan. Any good
> recommendations
> for a dealer that will take an order and ship?
>
> TIA,
> Paul Kort
> Ohio
> Sloan Racing
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