[Roadsters] 1600 tuning issues

[Mike Harper]

Not sure about the 1600 push rod engine, but when they made it an OHC and
added the long timing chain from the existing cam shaft (jackshaft), to create
the 2000, it can be off a tooth and not do any damage.  (again that is on the
2000 OHC design).  I had that happen and had similar symptoms to those
described.  YMMV.


Mike Harper, CAI, AARE
Harper Auction & Realty
843-729-4996
"Experience Sells"

www.AuctionMyRealEstate.NET
 
 

--- On Tue, 11/27/12, Gordon Maness <gordon.e.maness at hotmail.com> wrote:


From: Gordon Maness <gordon.e.maness at hotmail.com>
Subject: RE: [Roadsters] 1600 tuning issues
To: roadsterdude1600 at yahoo.com, ppeters914 at comcast.net,
datsun-roadsters at autox.team.net, hrhaslett at yahoo.com
Date: Tuesday, November 27, 2012, 3:24 PM






Aren't these 'interfearance' (timing jumps a tooth = piston and valve contact)
engines? 
If so then the chain can not be an issur.
 


> Date: Tue, 27 Nov 2012 11:49:30 -0800
> From: roadsterdude1600 at yahoo.com
> To: ppeters914 at comcast.net; datsun-roadsters at autox.team.net;
hrhaslett at yahoo.com
> Subject: Re: [Roadsters] 1600 tuning issues
>
> Sure sounds like a timing issue (especially with the run-on). If this was a
> 2000 I would guess you were a tooth off on your timing chain, but that
would
> be much less common/probable with the short 1600 chain. It did this all of
a
> sudden? Did you have a rough start or something that could have caused it
to
> jump timing? Since you cannot adjust at the dizzy, it might be worth a
> look...
>
>
> Mike Harper, CAI, AARE
> Harper Auction & Realty
> 843-729-4996
> "Experience Sells"
>
> www.AuctionMyRealEstate.NET
>
>
>
> --- On Tue, 11/27/12, Roy Haslett <hrhaslett at yahoo.com> wrote:
>
>
> From: Roy Haslett <hrhaslett at yahoo.com>
> Subject: Re: [Roadsters] 1600 tuning issues
> To: "Pete Peters" <ppeters914 at comcast.net>, "Datsun Owners List"
> <datsun-roadsters at autox.team.net>
> Date: Tuesday, November 27, 2012, 1:46 PM
>
>
> It has run and idled well up until the last few hundred miles, no
> backfires. Has run especially well at highway speeds (60-65). I had been
> getting some hesitation on the street but attributed it to the heat and
vapor
> lock. As the sputtering and backfiring started and increased I decided to
> change out the electrical components from the coil to the plugs. (They were
> all pretty well toasted). I believe to have the gaps all correct and I
> believe the parts to be ok (Beck Arnley). I think it is a matter of the
> timing and carb adjusting at this point. Another current symptom is run-on
> (dieseling) after shut down. What usually causes that?
> FYI. Fresh head about
> 5,000 miles ago. Engine has approx 20,000 miles on rebuild (done back in
the
> 80's) Does not burn any oil.
> Thanks,
> Roy
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