Location: Leonardtown, MD
Posts: 9,006
My VIN: 03572
Your car could start cold because the cold start valve is firing. It will fire with engine temp below 95 deg. F.
You may be correct that the valve in the fuel distributor is a little sticky. Try to bounce the air plate on both cars when the engine has cooled overnight. They both should bounce freely.
Location: los ángeles
Posts: 200
After 24hrs there isn't suppose to be any rest pressure in the lines.
Bitsyncmaster- the videos are of an overnight cold test. Got up this morning and just tapped the plates on both cars. Hot start car had resistance on the metering plate.
I understand the cold start valve feeds on a cold engine, but when its warmed up and i preform a plug swap i still can't get it going.
BTW its about 107 outside, i wonder if the cold start even fires on a "cold engine" today
Last edited by zimvsdib; 08-31-2017 at 09:09 PM.
Location: los ángeles
Posts: 200
What should i try next?
Take the Distributor off and try cleaning the piston maybe.
Test vacuum.
Test spark. I don't really know how to do this.
I have an inline spark tester with a sight window but its not real scientific. Can i take some multimeter readings somewhere to check spark strength?
Location: North GA
Posts: 6,177
Club(s): (SEDOC) (DCUK)
True, but if it does, that's a good thing.Originally Posted by zimvsdib
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RE #2: If you have excellent rest pressure, leaky injectors aren't the problem...They can cause loss of rest pressure -> vapor lock.
Inline spark testers are ~ok - It's the color etc of the spark you see while using it that tells the story (google what it should look like....).
I just use a timing light to see IF it is getting to the plug wires, or, hook a plug wire to a spare plug and ground it (to the engine block) to see how good the spark is...
Trying to read spark with your multimeter would almost certainly damage it.
Location: Vancouver, BC
Posts: 3,385
My VIN: thirty two 'o five
Club(s): (PNDC)
Did you sand the spades on the ballast resistor and get them nice and clean?
If you pull the RPM relay and jump the pump, does it start? Can you hear the pump running?
Dave
Here, somewhere.
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