british-cars
[Top] [All Lists]

Re: STILL no Start!

To: tomstory@slip.net
Subject: Re: STILL no Start!
From: mburdick@netserv.unmc.edu (Michael Burdick)
Date: Fri, 27 Jan 95 10:04:10 CST
   > Let's just say that right about now I am ready to throw a large hammer
   > through the windshield...Scenario...1967 MkII, 1500 engine, Stromberg
   > Carb(single150cdse), brand new starter, brand new coil, new points,
   > condensor, plugs, wires, carb rebuilt...150 pounds of compression on all
   > etc...

Tom,

It sounds like you need to begin at the beginning to get this thing sorted
out.  It is possible that the distributor driveshaft is improperly
installed.  The following is the method I have used to install it
properly.  It is straight out of the Haynes Spitfire Manual (which you
should buy if you haven't already!).  It assumes that the distributor has
not yet been installed (i.e. the distributor along with its base is
removed from the block).  My comments are [enclosed], typos are mine, run 
on sentences are theirs: 

1)  It is important to fit the distributor drive correctly, otherwise the 
ignition timing will be totally wrong.  It is easy to set the driveshaft 
in apparently the right position but in fact exactly 180 degrees out, by 
not working on the correct cylinder, which must not only be at TDC but 
also at the end of compression and the start of the power stroke with 
both valves closed.  [.....] 

2)  Rotate the crankshaft so that No1 piston is at TDC at the start of 
the power stroke.  This is when the inlet valve on No. 4 cylinder is just 
opening and the exhaust valve just closing, or when the [cam] sprocket 
timing marks are aligned [timing cover must be removed to see this].

3)  [... stuff about end float adjustment]

4)  [Fit the distributor drive shaft].  This must be done so that, in 
addition to engaging the oil pump drive spindle, the offset slot in the 
top of the driveshaft is in the position shown when fully engaged with 
the camshaft skew gear [I HATE doing ascii art]:

Breaker type distributor:                 Breakerless distributor:

                 ______                            ______
              -          -                      -   x      -
            -           x  -                  -     x        -
           -        x       -                -      x         -
           -     x          -                -      x         -
            - x            -                  -     x        -
              -          -                      -   x      -
                --------                          --------

[Sorry for the poor drawings.  -- outline where the dist. drive goes into 
the block.  x is the slot of the distributor drive.  Remember that the 
slot is cut in the drive with an offset.  With the breaker type 
distributor, the offset is towards the top of the drawing, and with the 
breakerless, the offset is towards the left.]

As the driveshaft turns every time it is fitted or removed [as it engages 
the camshaft gear], in order to arrive at the correct final position, 
several attempts at pre-positioning the shaft before fitting it may be 
necessary on a trial-and-error basis.  On completion, check that the oil 
pump spindle is engaged with the driveshaft.

5)  Fit the gasket of the required thickness to achieve the specified 
driveshaft endfloat and then fit the distributor pedestal and its two 
nuts and washers.

6)  Lubricate the distributor driveshaft with clean engine oil and then 
fit the distributor to the pedestal, aligning the drive with the 
driveshaft and securing the clamp plate with the nut, bolt, and washer.


End quoted material.  From here, set the static timing as has been 
described by others and it _should_ go if you have the other 2 necessary 
ingredients!

I have done this on three engines and it has worked the first time, each 
time.

Good luck,
Mike
mburdick@unmc.edu
'70 Spit Mk3
'75 Spit 1500 w/1296


<Prev in Thread] Current Thread [Next in Thread>