[tcb] Re: Bus engines woes for a Saturday
- From: "Trey Jung" <treyjung@xxxxxxxxxxx>
- To: <tcb@xxxxxxxxxxxxx>
- Date: Sun, 4 May 2008 13:22:58 -0500
compufire...
----- Original Message -----
From: Will Wood
To: tcb@xxxxxxxxxxxxx
Sent: Sunday, May 04, 2008 10:37 AM
Subject: [tcb] Re: Bus engines woes for a Saturday
I didn't find out, are you running points or a pertronix/compufire unit?
-----Original Message-----
From: Trey Jung
Sent: May 4, 2008 7:21 AM
To: tcb@xxxxxxxxxxxxx
Subject: [tcb] Re: Bus engines woes for a Saturday
correct on connected to the left port...
----- Original Message -----
From: Will Wood
To: tcb@xxxxxxxxxxxxx
Sent: Saturday, May 03, 2008 10:09 PM
Subject: [tcb] Re: Bus engines woes for a Saturday
Okay, on the hesitation issue. How much mechanical advance do you have
set for the SVDA. It shouldn't be more than 30 degrees BTDC. It could be that
it's advancing too far and causing the issue under load, however when you're
accelerating the vacuum signal to the SVDA should be low. You're connected on
the left port of the 34 PICT 3 near the idle bypass and mixture screws right?
On the second issue, you relay could be shot or your solenoid could be
shot. You could also have too low of voltage from the battery to trip the
relay and the solenoid.
-----Original Message-----
From: Trey Jung
Sent: May 3, 2008 9:25 PM
To: tcb@xxxxxxxxxxxxx
Subject: [tcb] Re: Bus engines woes for a Saturday
Guess what.. I went on my little 20 mile "deer run" as I call it and
stopped about 1/2 as my Berg dipstick was flicking on at 45 mph.... so I go
back to the engine and I notice the air hose coming from the back of the engine
to the oil bath nozzle was disconnect.. ( might be a reason it's running hot
letting the hot air into the engine compartment) connected it then I notice
that the vacuum connection the top left of the pict 34 coming from the
diaphragm of the SVDA was not connected, so I connected it... Got in the bus ,
cranked it up and drove.
The hesitation came back just like before I changed the plugs. Stopped
the bus went to the back and disconnected that hose coming from the diaphragm
on the SVDA, guess what , drove fine (as in not jerking, hesitation ) when
shifting from one gear to the next. Drove a ways disconnected and same thing
(jerking and missing like at the higher rpm's in the gears)..... Did this
switch about 4 times to make sure...... now the fun part!
Stopped the bus to disconnect the hose (final experiment to get back
home) got back the bus, turned the key, nothing, no noise, got lights and radio
, gauge lights all light up, not even a murmur from the starter or solenoid. I
do have a hard start relay in it and I checked the fuse and it was blown.. no
15 amp fuse in the bus.... bummer
out in the middle of no where (close to where I got stuck trying to
chase hogs in the other bus)....
Finally a guy came by, pushed me off, got home , (forget the cell phone
too) apologized to the wife... went out to the bus , stuck a 30 amp fuse in the
hard start relay,,,, nada... nothing.. fuse didn't blow either.... no start....
2 problems:
Why does the bus run like crap with the vacuum connected and run ok
with it not connected.,... a bad vacuum can? (not doing it's job? maybe) bad
SVDA
Electrical (blew the hard start relay somehow or a ground came loose) I
do know if the hard start was blown if the started would turn over. Anyone
know. Thinking that the hard start blew along with the fuse and power is not
getting to the started....
I need a beer.....
----- Original Message -----
From: sammie smith
To: tcb@xxxxxxxxxxxxx
Sent: Saturday, May 03, 2008 6:47 PM
Subject: [tcb] Re: Bus engines woes for a Saturday
Trey: Spark plugs are critical on the VW engine. About 9,000-10,000
miles on a set and that's about it. I change my plugs, points and condenser
every 10,000. If you have a VW engine "cutting out" i.e., missing at higher
rpm on acceleration the first suspect should be the plugs. That's not
necessarily always the problem, but is the most probable.
Trey Jung <treyjung@xxxxxxxxxxx> wrote:
Sammie,
Keeping my fingers crossed. I changed the plugs (NGK) and gapped
them to .026. Drove thru the neighborhood and so far so good. No jerking when
shifting from 2nd to 3rd and 3rd to 4th. trying to talk the wife into going for
a ride but looks like we will tomorrow.
I owe you a beverage of your choice next time I see you.
Thanks,
Trey
----- Original Message -----
From: sammie smith
To: tcb@xxxxxxxxxxxxx
Sent: Saturday, May 03, 2008 4:25 PM
Subject: [tcb] Re: Bus engines woes for a Saturday
Sounds to me like the plugs could be cutting out. That's the
first thing I would do; change the spark plugs.
Trey Jung <treyjung@xxxxxxxxxxx> wrote:
Right before you shift from 2nd to 3rd and 3rd to 4th, the bus
jerks at the end of the rpm spectrum. I don't have a tach in it but at around
25 mph (in 2nd) the bus jerks then I shift to 3rd it's ok until I get ready at
35 to 40 mph shift to 4th, same thing happens, bus jerks , pulsates....
The other day on the highway it started doing this at 55 mph in
4th.... Freaked me out. I've changed the coil, spark plug wires twice and still
same symptoms. Running an SVDA with a compufire it in, could the compufire be
going out? I think these things will just fail.
I'm sure everyone is out in their buses today enjoying
beautiful weather,
I'm trying to get ready for Spicewood.
any suggestions please let me know. I did take the pict 34 off
a few weeks ago and cleaned it up, blew out all the jets and all that..Plus
took the fuel pump and cleaned the screen and installed a new fuel filter.
Trey
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