Thanks Graeme and all,
I wasn't clear, (well, it was late, and, er...) but what I was
asking about was "does the SRL311 have timing chain(s) or belt(s)? And,
how often is service required for whatever it does have? Is the design
"interference" or "non-interference?"
Thanks very much,
Best regards,
Tom (trying to be more precise) Reynolds
Hereford, AZ
At 07:11 PM 04/30/2003 +0930, Graeme Suckling wrote:
>Tom,
>timing chains V timing belts is an interesting one.
>Nissans latest generation VQ series engines (for example) have
>reverted to chains to drive the OHC.
>I read somewhere that the car manufacturers were not getting the
>longevity from the rubber belts that were promised in the glossies.
>That has led to the re-appearance of the ubiquitous cam chain.
>Generally, unless other factors intervene, the chains only get renewed
>at engine recondition time. That is certainly more than your 100,000K
>or 60,000M interval!
>I have had experience with both technologies and I really do not have
>a preference.
>The belt is very quiet and oil free however the chain is also quiet
>(normally) also because it is enclosed within the engine.
>My Nissan RB30 engine uses a tensioner roller but it is adjusted only
>when you instal a new belt, then locked in position.
>Your typical chain has dynamic tensioning to automagically compensate
>for gradual stretching.
>I have seen a Hyundai twin cam head that had broken its rubber band,
>not pretty.
>16 bent valves and 4 scarred pistons and, reportedly, the belt had
>been changed at the recommended intervals.
>Just my contribution to your wonderings.
>Regards,
>Graeme Suckling
>1965 SP310 - under construction DSOA Member # 112
>1971 P510 4 door - daily driver, original owner, highly modified.
>1972 PL510 2 door - in storage.
>1973 HS30/240Z - re-building to 2003 specs.
>www.imagestation.com/mypictures/index.html
>Adelaide, South Australia.
>
>
>
>
>-----Original Message-----
>From: owner-datsun-roadsters@autox.team.net
>[mailto:owner-datsun-roadsters@autox.team.net]On Behalf Of Tom
>Reynolds
>Sent: Wednesday, 30 April 2003 4:35 PM
>To: datsun-roadsters@autox.team.net
>Subject: SRL311 ?s
>
>
>Just some miscellaneous things I've been wondering about for a few
>days now;
>
>Timing chain-timing belt? Time/mileage sensitive, when to change?
>Parts availability in U.S.? Good for all things, are some
>"unobtainium?"
>Parts/procedure/service manuals available?
>0-60 time for original U.S. spec cars? Gas mileage figures of current
>drivers?
>Any problem getting insurance? "Datsun" not insured by some
>companies, or
>because of age of car?
>
>Thanks very much
>Tom Reynolds
>Hereford, AZ
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