[Roadsters] 1600 tuning issues

[Tom Hendricksen]

Jumping a chain tooth in an interference engine is a good point.  I 
jumped a tooth in my second 2000 many years ago and replaced the chains, 
gears, upper tensioner, and at least 3 valves if I remember correctly.  
all for around $30.00 at the time.

I am just finishing installing new timing chains in Mr. Hyde and even 
though I was trying to be very careful about damaging the head gasket, I 
had a huge oil leak after reassembly.  I spent last Sunday searching for 
the source of the leak and then replacing the head and manifold 
gaskets.  Should be good for another 10 years and I hope more than 
18,000 miles.

Tom
69 2000 - Mr. Hyde
Las Vegas
http://www.datsun2000.com
http://www.nowroc.org


On 11/27/2012 12:24:22 PM, Gordon Maness (gordon.e.maness at hotmail.com) 
wrote:
 > 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