[DeTomaso] Fw: Cleveland engine question
jgkrenton at comcast.net
jgkrenton at comcast.net
Thu May 8 01:46:45 EDT 2014
Boyd:
Since no big pieces seem to have left the block, t he first thing to do is pull a valve cover and the distributor cap. Then hit the starter and turn the motor over (which you report is still turning??).
If the timing chain has failed, the valves and distributor will not move. If the distributor gear/pin has failed, then the valves will move but the distributor will not turn. C heck the timing too. If the gear/pin failed the distributor may turn but be way out of time... ( check: timing, compression, spark, fuel, one of them is missing....)
Good luck..
Jeff/2467
----- Original Message -----
From: "Boyd Casey" <boyd411 at gmail.com>
To: "mark skwarek" <ehpantera at yahoo.com>
Cc: "Detomaso List" <detomaso at poca.com>
Sent: Wednesday, May 7, 2014 10:06:39 PM
Subject: Re: [DeTomaso] Fw: Cleveland engine question
Well as the more astute among may have already guessed I had an "episode"
this evening while giving my pantera a workout after getting my new
CNC sssleeve clutch master,
ss sleeve long throw slave, new 90 amp alternator and new harmonic
balanceralong with new front seal and pulley. My car was running and
sounding
great! I loved the new master and slave set up and even though the expected
increase in clutch pedal effort materialised (as promised) I really liked
the pedal resistance and the new longer throw slave really seemed to make
the clutch engage ( it was like it slammed shut) the rear wheels seemed to
hook up better and I was really enjoying my drive. I was actually enjoying
it a little too much because I was in 5th and on it hard when all of a
sudden there was a loud boom and a sudden loss of all power. At first the
car was still in gear and the engine was turning due to the forward
momentum of the car. There were no cylinders firing just the lub dub sound
of an engine turning with out ignition and a substantial amount of smoke
was visible in my rear view as well as a funky smell which I hope was fuel
and air vaporising as it traveld through the hot engine with no spark to
ignite it. I was very close to my exit so I put the car in neutral and
rolled off the Parkway exit ramp.Once stopped I called a buddy of mine who
lives near by and who owns a flat bed. He is also an avid car collector and
restores classic cars as a hobby. He suggested I do a few things like try
to restart the car and when it wouldn't start he suggested turning the key
to start with the car in gear to see if it was locked up. When I turned the
starter in first the car moved forward so at least it didn't appear to be a
complete catastrophic failure ( but I guess that depends on your own
definition of "catastrophic failure" The way I was feeling a broken timing
chain or sheared distributor gear didn't seem as bad a a completely blown
engine. (like a rod through the block kind of blown engine).
So for those of you in the know whats the best way and order to check if
it's a sheared pin or a jumped or broken timing chain? The thing that
really made me think it was more then just a sheared distributor pin was
the loud boom when the shit hit the fan(in a manner of speaking). So what
to do?
Boyd
P.S. please excuse any more spelling errors then one would normally expect
from a post written by an extremely distressed Pantera owner. It seems my
spell check isn't running much better then my Pantera!
On Wed, May 7, 2014 at 11:30 PM, mark skwarek <ehpantera at yahoo.com> wrote:
> For me I have a gear driven cam and the pin that drives the cam sheared
> resulting the two broken valves. Hopefully my pics will come through.
> Mark
> On Wednesday, May 7, 2014 11:24 PM, Will Kooiman <will.kooiman at gmail.com>
> wrote:
> I would be very surprised if there isn't interference.
>
> But the timing chain rarely breaks. If it jumps a tooth, you are probably
> still safe, even with a mild performance cam.
>
> On 5/7/14 10:57 PM, "Boyd Casey" <boyd411 at gmail.com> wrote:
>
> > Do Cleveland engines (generally) have valves that will hit the pistons
> > if the timing chain breaks? I assume if you have a high lift cam and or
> > high top pistons you could have interference but what about a stock
> > engine?A
> > Boyd
> >_______________________________________________
> >
> >Detomaso Forum Managed by POCA
> >
> >DeTomaso mailing list
> >DeTomaso at poca.com
> >http://poca.com/mailman/listinfo/detomaso_poca.com
>
>
>
>
> _______________________________________________
>
> Detomaso Forum Managed by POCA
>
> DeTomaso mailing list
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> http://poca.com/mailman/listinfo/detomaso_poca.com
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-------------- next part --------------
Boyd:
Since no big pieces seem to have left the block, the first thing to do
is pull a valve cover and the distributor cap. Then hit the starter
and turn the motor over (which you report is still turning??).
If the timing chain has failed, the valves and distributor will not
move. If the distributor gear/pin has failed, then the valves will
move but the distributor will not turn. Check the timing too. If the
gear/pin failed the distributor may turn but be way out of time...
(check: timing, compression, spark, fuel, one of them is missing....)
Good luck..
Jeff/2467
__________________________________________________________________
From: "Boyd Casey" <boyd411 at gmail.com>
To: "mark skwarek" <ehpantera at yahoo.com>
Cc: "Detomaso List" <detomaso at poca.com>
Sent: Wednesday, May 7, 2014 10:06:39 PM
Subject: Re: [DeTomaso] Fw: Cleveland engine question
Well as the more astute among may have already guessed I had an
"episode"
this evening while giving my pantera a workout after getting my new
CNC sssleeve clutch master,
ss sleeve long throw slave, new 90 amp alternator and new harmonic
balanceralong with new front seal and pulley. My car was running and
sounding
great! I loved the new master and slave set up and even though the
expected
increase in clutch pedal effort materialised (as promised) I really
liked
the pedal resistance and the new longer throw slave really seemed to
make
the clutch engage ( it was like it slammed shut) the rear wheels seemed
to
hook up better and I was really enjoying my drive. I was actually
enjoying
it a little too much because I was in 5th and on it hard when all of a
sudden there was a loud boom and a sudden loss of all power. At first
the
car was still in gear and the engine was turning due to the forward
momentum of the car. There were no cylinders firing just the lub dub
sound
of an engine turning with out ignition and a substantial amount of
smoke
was visible in my rear view as well as a funky smell which I hope was
fuel
and air vaporising as it traveld through the hot engine with no spark
to
ignite it. I was very close to my exit so I put the car in neutral and
rolled off the Parkway exit ramp.Once stopped I called a buddy of mine
who
lives near by and who owns a flat bed. He is also an avid car collector
and
restores classic cars as a hobby. He suggested I do a few things like
try
to restart the car and when it wouldn't start he suggested turning the
key
to start with the car in gear to see if it was locked up. When I turned
the
starter in first the car moved forward so at least it didn't appear to
be a
complete catastrophic failure ( but I guess that depends on your own
definition of "catastrophic failure" The way I was feeling a broken
timing
chain or sheared distributor gear didn't seem as bad a a completely
blown
engine. (like a rod through the block kind of blown engine).
So for those of you in the know whats the best way and order to check
if
it's a sheared pin or a jumped or broken timing chain? The thing that
really made me think it was more then just a sheared distributor pin
was
the loud boom when the shit hit the fan(in a manner of speaking). So
what
to do?
Boyd
P.S. please excuse any more spelling errors then one would normally
expect
from a post written by an extremely distressed Pantera owner. It seems
my
spell check isn't running much better then my Pantera!
On Wed, May 7, 2014 at 11:30 PM, mark skwarek <ehpantera at yahoo.com>
wrote:
> For me I have a gear driven cam and the pin that drives the cam
sheared
> resulting the two broken valves. Hopefully my pics will come
through.
> Mark
> On Wednesday, May 7, 2014 11:24 PM, Will Kooiman
<will.kooiman at gmail.com>
> wrote:
> I would be very surprised if there isn't interference.
>
> But the timing chain rarely breaks. If it jumps a tooth, you are
probably
> still safe, even with a mild performance cam.
>
> On 5/7/14 10:57 PM, "Boyd Casey" <boyd411 at gmail.com> wrote:
>
> > Do Cleveland engines (generally) have valves that will hit the
pistons
> > if the timing chain breaks? I assume if you have a high lift cam
and or
> > high top pistons you could have interference but what about a
stock
> > engine?A
> > Boyd
> >_______________________________________________
> >
> >Detomaso Forum Managed by POCA
> >
> >DeTomaso mailing list
> >DeTomaso at poca.com
> >http://poca.com/mailman/listinfo/detomaso_poca.com
>
>
>
>
> _______________________________________________
>
> Detomaso Forum Managed by POCA
>
> DeTomaso mailing list
> DeTomaso at poca.com
> http://poca.com/mailman/listinfo/detomaso_poca.com
>
>
>
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