Another thing you might want to check is to pull the valve cover and see
if you find any of those little lash pads lying around... I've had
this fun twice already... first time, the "evil L" shot through my valve
cover and bent all the valves. Second time, the chain jumped time,
bent all the valves and threw lashpads all over the place... I also had
the very weak backfiring problems while trying a restart... good luck!
Incidentally, all 2000 owners should take this into account.. ANY time
you hear the "death rattle", you'd better get working on it!! And
change your oil regularly... I would change about every 2000-2500
miles. If you decide not to believe me, I hope you and one of our fine
vendors are really good friends... After two 2000 chain throws, is
it any wonder that I prefer the 1600???
Eric
WyCROC
'68 2000
'67 1600 (wifes)
'68 + '69 1600's
Andy Cost wrote:
>
> I had a screw come loose in the distributor at an autocross. It sputtered
> and backfired and then would not start. The screw got jammed in the points.
> I doubt your chain skipped. To check it crank the motor by hand or by
> rolling the car in gear until the timing mark on the crank gear is at TDC
> and the rotor is pointed toward the front of the motor.. At this point the
> cam key(screw) should be at the 3:00 position. If it jumped a tooth the
> screw will be more like 2:30 or 3:30(A.M. or P.M your choice).
> NT
> ----- Original Message -----
> From: <MMccaf8697@aol.com>
> To: <datsun-roadsters-digest@autox.team.net>
> Sent: Sunday, July 09, 2000 11:02 AM
> Subject: Fwd: Slipped timing chain on U-20?
>
> >
> > --part1_25.810df87.2699fc0f_boundary
> >
> > In a message dated 07/08/2000 11:40:57 PM Mountain Daylight Time,
> MMccaf8697
> > writes:
> >
> > << Fellow roadsterites: Troubles began on a drive to a wedding tonight
> (not
> > mine). Upon starting from a stop sign on a steep incline, some wheelspin
> was
> > experienced, and when traction was gained, engine stalled. No restart,
> only
> > some weak backfiring. Engine seems to have some compression or load on
> > starter. Prior to this there was some timing chain rattle at low idle
> (about
> > 800-900 rpm). Engine is reportedly rebuilt about 3000 miles ago and
> previous
> > inspection revealed newer appearing timing chain, and top gear (removal of
> > valve cover only). Timing chain tension appears to have several washers
> to
> > shim shoe outward, but otherwise appears new(er). How can I quickly check
> > for timing gear jump? Is jumping most likely at upper cam gear or
> jackshaft
> > gear? (I am not looking forward to removal of front cover). Assuming
> chain
> > has jumped at top gear, can I simply set piston #1 at TDC and reposition
> cam
> > and cam gear to bright link and dimple on cam gear? Advice on diagnosing
> > this and how to proceed would be greatly appreciated.
> > Mark McCafferty
> > 67 1600 with U-20 and 5speed
> > WyCROC >>
> >
> >
> > --part1_25.810df87.2699fc0f_boundary
> > Content-Disposition: inline
> >
> > Return-path: <MMccaf8697@aol.com>
> > From: MMccaf8697@aol.com
> > Full-name: MMccaf8697
> > Message-ID: <36.85a6c19.26996a69@aol.com>
> > Date: Sun, 9 Jul 2000 01:40:57 EDT
> > Subject: Re: Slipped timing chain on U-20?
> > To: -datsun-roadsters-digest@autox.team.net
> > MIME-Version: 1.0
> > X-Mailer: AOL 5.0 for Windows sub 109
> >
> > Fellow roadsterites: Troubles began on a drive to a wedding tonight (not
> > mine). Upon starting from a stop sign on a steep incline, some wheelspin
> was
> > experienced, and when traction was gained, engine stalled. No restart,
> only
> > some weak backfiring. Engine seems to have some compression or load on
> > starter. Prior to this there was some timing chain rattle at low idle
> (about
> > 800-900 rpm). Engine is reportedly rebuilt about 3000 miles ago and
> previous
> > inspection revealed newer appearing timing chain, and top gear (removal of
> > valve cover only). Timing chain tension appears to have several washers
> to
> > shim shoe outward, but otherwise appears new(er). How can I quickly check
> > for timing gear jump? Is jumping most likely at upper cam gear or
> jackshaft
> > gear? (I am not looking forward to removal of front cover). Assuming
> chain
> > has jumped at top gear, can I simply set piston #1 at TDC and reposition
> cam
> > and cam gear to bright link and dimple on cam gear? Advice on diagnosing
> > this and how to proceed would be greatly appreciated.
> > Mark McCafferty
> > 67 1600 with U-20 and 5speed
> > WyCROC
> >
> > --part1_25.810df87.2699fc0f_boundary--
> >
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