Re: [DML] Can someone explain this? (distributor positioning)

[Warren Wallingford <warren@xxxxxxxxxx>]

Check the vacuum hose connections at the thermal switch and solenoid. 
Sounds like you got one of them backwards.  There's a technical bulletin 
on this.
Warren at DMC

stainlessilusion wrote:
> Thank you Jeff Friday. Good thing you told me to check the timing,
> must have been around 40 degrees (!). So I adjust it back to 13, it
> idles smooth, and so far has been starting up quickly (tomorrow
> morning is the ultimate test). Also readjusted CO. But it now back
> fires more anytime you let off the gas (it backfired before but not
> nearly as much), AND I'm lacking serious power- I'd step on the gas
> before and the car would boogie, now it's sluggish. I changed the
> advance diaphram last year so I know that it's good (will double check
> tomorrow), vac lines are silicone. Any suggestions? Thanks again!
> -----Dani B. #5003
> 
> 
> 
> --- In dmcnews@xxxxxxxxxxxxxxx, "Jeff Friday" <DeLorean_Type304@xxxx>
> wrote:
> 
>>I had a problem just like this on one of the cars I serviced.  It
> 
> popped and 
> 
>>ran really rough unless I aligned the distributor all the way over
> 
> to one 
> 
>>side of the alignment area.  The distributor was off by one tooth
> 
> where it 
> 
>>meets the camshaft.  I pulled the distributor and aligned the motor
> 
> by hand 
> 
>>(valve cover on the right side off to check valve movement and be
> 
> sure the 
> 
>>motor is on the right stroke) once I reinstalled the distributor the 
>>position of the rotor was a bit away from the center and I checked the 
>>timing after the car was running.  I had to move the distributor a few 
>>millimeters or so over once the car was running but we hit a perfect 13 
>>degrees and the car started and ran perfectly from then on out.
>>
>>Be sure to use the 13 degree mark and not the 0 on the timing plate.
> 
>  You 
> 
>>can pick up a cheap timing light from any autoparts store.  Also when 
>>aligning the cranksahft pulley be sure your using the mark on the
> 
> right of 
> 
>>the pulley not the one to the left of it...that mark is for the
> 
> number 6 
> 
>>cylinder.
>>
>>Jeff in NC
>>
>>P.S. Also you may have to readjust your CO once the distributor is
> 
> aligned 
> 
>>properly.  CO balance is very inportant.  You can smell the exhaust
> 
> and tell 
> 
>>right away if it is too rich if it burns your eyes to be near it.  Also 
>>gauge the heat with your hand.  I don't personally know your mechanical 
>>ability but that's a trick I use.  An easier way to get proper CO if
> 
> you 
> 
>>don't have the device to measure it in the exhaust is to listen for the 
>>Frequency Valve.  It will cease to make a continuous buzzing noise
> 
> if too 
> 
>>rich.  play with the CO screw making 1/8 turns and listen to both
> 
> the engine 
> 
>>and the Frequency Valve when you hit the sweet spot it will be just
> 
> below 
> 
>>the sound of the valve cutting off as you rotate counterclockwise from 
>>richer to lean.  The instant the valve comes on and remains constant
> 
> once 
> 
>>the car is warmed off, stop and cover the access hole.  The car will
> 
> run 
> 
>>perfectly from that point out.
>>
>>Unless you have a problem with the O2 Sensor and in that case
> 
> replace or 
> 
>>unplug.  Unplugging forces the car to a default rich mixture and the 
>>Frequency Valve buzzes to life.  We used that solution on a couple
> 
> cars here 
> 
>>in NC until they ordered a new O2 Sensor and they ran like a dream.
>>
>>
>>>From: "stainlessilusion" <5n-@xxxxxxx>
>>>Reply-To: dmcnews@xxxxxxxxxxxxxxx
>>>To: dmcnews@xxxxxxxxxxxxxxx
>>>Subject: [DML] Can someone explain this? (distributor positioning)
>>>Date: Sun, 31 Jul 2005 01:09:40 -0000
>>>
>>>I'm still battling to get my engine running good, but encountered some
>>>problems. The distributor is adjusted a little bit counter clockwise
>>
>>>from the center line-the engine starts right up fast, but idle
>>
>>>condition is horrible with "popping" and rough running not to mention
>>>vibrations. Adjusting the distributor so it is on the centerline will
>>>give me the same results as described above, just a bit less popping.
>>>When it is adjusted a slight bit clockwise over the centerline, the
>>>engine runs so smooth and perfectly! BUT after the engine is off for 5
>>>minutes it is hard to start, and letting it sit over night it won't
>>>start at all the next morning. The only way to start it is with a
>>>great deal of starting spray, or by unbolting the distributor and
>>>adjusting it CCW. So instead of having a nice running engine, I run it
>>>CCW to eliminate start-up problems but also have to deal with bad rock
>>>and roll. Does anyone have any ideas on why this is happening? Is
>>>there something else I need to replace in order to get it to start
>>>right up? Thanks guys! -----Dani B. #5003 (almost there)
> 
> 
> 
> 
> 
> 
> 
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