86 Golf Starting Problem

I have an 86 Golf, it will start fine first thing morning, afternoon
or evening. But after running for 5-10 minutes or longer, and I shut
off the engine, it will not start again, engine will turn over, but
will not start, after waiting about 10-20 minutes, it will start just
fine. We have replaced the in-tank fuel pump and filter recently
thinking thisa might fix the problem, but it did not. Then I found
this forum, anybody have a suggestion?

Thanks, Steve

Steve 86VW Golf wrote:

I have an 86 Golf, it will start fine first thing morning, afternoon
or evening. But after running for 5-10 minutes or longer, and I shut
off the engine, it will not start again, engine will turn over, but
will not start, after waiting about 10-20 minutes, it will start just
fine. We have replaced the in-tank fuel pump and filter recently
thinking thisa might fix the problem, but it did not. Then I found
this forum, anybody have a suggestion?

Thanks, Steve

Usually the fuel pressure-regulator is responsible for hot starting.
al.

Have you "tuned" it recently? New plugs, wires, rotor, cap, air filter,
etc.?
What do the spark plug electrodes look like? black and wet with hard
deposits?
How well does it run when it is running?
Got a repair manual?

Getting a little more technical..................
Did you check the CO either with an exhaust analyzer or dwell meter on the
freq valve?
Does pressing down on the accelerator pedal help in starting when you are
having problems?
Did you check the cold start valve operation?
Check for any vacuum leaks?

Something is happening like the injectors are leaking and flooding the spark
plugs.
Spark is not strong enough to fire the plugs.
Or the mixture is too lean during the time it is not starting.
NEED:
spark
compression
fuel

--
later,
dave
(One out of many daves)

"Steve 86VW Golf" <shcpa (AT) gte (DOT) net> wrote

I have an 86 Golf, it will start fine first thing morning, afternoon
or evening. But after running for 5-10 minutes or longer, and I shut
off the engine, it will not start again, engine will turn over, but
will not start, after waiting about 10-20 minutes, it will start just
fine. We have replaced the in-tank fuel pump and filter recently
thinking thisa might fix the problem, but it did not. Then I found
this forum, anybody have a suggestion?

Thanks, Steve