[DeTomaso] Fw: Cleveland engine question
Larry - Ohio Time
Larry at ohiotimecorp.com
Thu May 8 10:01:06 EDT 2014
Boyd,
I like to pull all the plugs out. Look at them for damage, oil or water. It
helps to know what cylinder is the problem. Set your static timing to TDC
and check the rotor to see if it is pointing at the #1 wire on the cap. If
it is ok do a compression / leak down test next. Pop the valve covers off to
have a peek is always good idea.
I wish you good luck
Larry - Cleveland
-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at poca.com] On Behalf Of Sean Korb
Sent: Thursday, May 08, 2014 7:52 AM
To: detomaso at poca.com
Subject: Re: [DeTomaso] Fw: Cleveland engine question
The loud boom is classic distributor pin shear or gear shattering (that's
fun to pick the pieces out). Get the engine to TDC and pull the
distributor cap off. It should be pointing almost to #1 unless 180
degrees out so if that's the case turn the motor again.
This has happened to me 6 times with Clevelands and Windsors. Each time it
was under power, each time there was a large BOOM and then no power. Check
that first. Then check for spark, then check for fuel, then check for
compression... then check for holes :)
sean
On Thu, May 8, 2014 at 7:02 AM, Will Kooiman <will.kooiman at gmail.com> wrote:
> Sorry to say this, but loud boom almost always means you broke something
> big.
>
> And especially a loud boom followed by the engine not running.
>
> The distributor shear pin doesn't boom.
>
> Jumped timing chain doesn¹t boom.
>
> Me thinks you get to pull your engine.
>
> On 5/8/14 6:31 AM, "michael at michaelshortt.com" <michael at michaelshortt.com>
> wrote:
>
> > Make sure that there is no water in the oil and oil in the water. All
> > electrical connections are secure, do you have spark?
> > Pull the dist cap, is the rotor turning?
> > If timing chain issue...you may want to pull a head and see if any
> > valves smacked the pistons.
> > If a sheared pin, you can fix that or use this opportunity to look
into
> > a distributorless engine with an Electromotive system ( works great ).
> > Hopefully, something simple and easy ($) to repair.
> >
> > Michael
> >
> > On May 8, 2014 1:47 AM, <[1]jgkrenton at comcast.net> wrote:
> >
> > A A Boyd:
> > A A Since no big pieces seem to have left the block, the first
> > thing to do
> > A A is pull a valve cover and the distributor cap. A Then hit the
> > starter
> > A A and turn the motor over (which you report is still turning??).
> > A A If the timing chain has failed, the valves and distributor will
> > not
> > A A move. A If the distributor gear/pin has failed, then the valves
> > will
> > A A move but the distributor will not turn. Check the timing too.
> > A If the
> > A A gear/pin failed the distributor may turn but be way out of
> > time...
> > A A (check: timing, compression, spark, fuel, one of them is
> > missing....)
> > A A Good luck..
> > A A Jeff/2467
> > A A
> > A __________________________________________________________________
> > A A From: "Boyd Casey" <[2]boyd411 at gmail.com>
> > A A To: "mark skwarek" <[3]ehpantera at yahoo.com>
> > A A Cc: "Detomaso List" <[4]detomaso at poca.com>
> > A A Sent: Wednesday, May 7, 2014 10:06:39 PM
> > A A Subject: Re: [DeTomaso] Fw: A Cleveland engine question
> > A A Well as the more astute among may have already guessed I had an
> > A A "episode"
> > A A this evening while giving my pantera a workout after getting my
> > new
> > A A CNC sssleeve clutch master,
> > A A ss sleeve long throw slave, new 90 amp alternator and new
> > harmonic
> > A A balanceralong with new front seal and pulley. My car was
> > running and
> > A A sounding
> > A A great! I loved the new master and slave set up and even though
> > the
> > A A expected
> > A A increase in clutch pedal effort materialised (as promised) I
> > really
> > A A liked
> > A A the pedal resistance and the new longer throw slave really
> > seemed to
> > A A make
> > A A the clutch engage ( it was like it slammed shut) the rear
> > wheels seemed
> > A A to
> > A A hook up better and I was really enjoying my drive. I was
> > actually
> > A A enjoying
> > A A it a little too much because I was in 5th and on it hard when
> > all of a
> > A A sudden there was a loud boom and a sudden loss of all power. At
> > first
> > A A the
> > A A car was still in gear and the engine was turning due to the
> > forward
> > A A momentum of the car. There were no cylinders firing just the
> > lub dub
> > A A sound
> > A A of A an engine turning with out ignition A and a substantial
> > amount of
> > A A smoke
> > A A was visible in my rear view as well as a funky smell which I
> > hope was
> > A A fuel
> > A A and air vaporising as it traveld through the hot engine with no
> > spark
> > A A to
> > A A ignite it. I was very close to my exit so I put the car in
> > neutral and
> > A A rolled off the Parkway exit ramp.Once stopped I called a buddy
> > of mine
> > A A who
> > A A lives near by and who owns a flat bed. He is also an avid car
> > collector
> > A A and
> > A A restores classic cars as a hobby. He suggested I do a few
> > things like
> > A A try
> > A A to restart the car and when it wouldn't start he suggested
> > turning the
> > A A key
> > A A to start with the car in gear to see if it was locked up. When
> > I turned
> > A A the
> > A A starter in first the car moved forward so at least it didn't
> > appear to
> > A A be a
> > A A complete catastrophic failure ( but I guess that depends on
> > your own
> > A A definition of "catastrophic failure" The way I was feeling a
> > broken
> > A A timing
> > A A chain or sheared distributor gear didn't seem as bad a a
> > completely
> > A A blown
> > A A engine. (like a rod through the block kind of blown engine).
> > A A So for those of you in the know whats the best way and order to
> > check
> > A A if
> > A A it's a sheared pin or a jumped or broken timing chain? The
> > thing that
> > A A really made me think it was more then just a sheared
> > distributor pin
> > A A was
> > A A the loud boom when the shit hit the fan(in a manner of
> > speaking). So
> > A A what
> > A A to do?
> > A A Boyd
> > A A P.S. please excuse any more spelling errors then one would
> > normally
> > A A expect
> > A A from a post written by an extremely distressed Pantera owner.
> > It seems
> > A A my
> > A A spell check isn't running much better then my Pantera!
> > A A On Wed, May 7, 2014 at 11:30 PM, mark skwarek
> > <[5]ehpantera at yahoo.com>
> > A A wrote:
> > A A > For me I have a gear driven cam and the pin that drives the
> > cam
> > A A sheared
> > A A > resulting the two broken A valves. A Hopefully my pics will
> > come
> > A A through.
> > A A > Mark
> > A A > A On Wednesday, May 7, 2014 11:24 PM, Will Kooiman
> > A A <[6]will.kooiman at gmail.com>
> > A A > wrote:
> > A A > A I would be very surprised if there isn't interference.
> > A A >
> > A A > But the timing chain rarely breaks. A If it jumps a tooth,
> > you are
> > A A probably
> > A A > still safe, even with a mild performance cam.
> > A A >
> > A A > On 5/7/14 10:57 PM, "Boyd Casey" <[7]boyd411 at gmail.com>
> > wrote:
> > A A >
> > A A > > A Do Cleveland engines (generally) have valves that will
> > hit the
> > A A pistons
> > A A > > A if the timing chain breaks? I assume if you have a high
> > lift cam
> > A A and or
> > A A > > A high top pistons you could have interference but what
> > about a
> > A A stock
> > A A > > A engine?A
> > A A > > A Boyd
> > A A > >_______________________________________________
> > A A > >
> > A A > >Detomaso Forum Managed by POCA
> > A A > >
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> > A A > >[8]DeTomaso at poca.com
> > A A > >[9]http://poca.com/mailman/listinfo/detomaso_poca.com
> > A A >
> > A A >
> > A A >
> > A A >
> > A A > _______________________________________________
> > A A >
> > A A > Detomaso Forum Managed by POCA
> > A A >
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> >
> >References
> >
> > 1. mailto:jgkrenton at comcast.net
> > 2. mailto:boyd411 at gmail.com
> > 3. mailto:ehpantera at yahoo.com
> > 4. mailto:detomaso at poca.com
> > 5. mailto:ehpantera at yahoo.com
> > 6. mailto:will.kooiman at gmail.com
> > 7. mailto:boyd411 at gmail.com
> > 8. mailto:DeTomaso at poca.com
> > 9. http://poca.com/mailman/listinfo/detomaso_poca.com
> > 10. mailto:DeTomaso at poca.com
> > 11. http://poca.com/mailman/listinfo/detomaso_poca.com
> > 12. mailto:DeTomaso at poca.com
> > 13. http://poca.com/mailman/listinfo/detomaso_poca.com
> > 14. mailto:DeTomaso at poca.com
> > 15. http://poca.com/mailman/listinfo/detomaso_poca.com
> >_______________________________________________
> >
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>
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>
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--
Sean Korb spkorb at spkorb.org http://www.spkorb.org
'65,'68 Mustangs,'68 Cougar,'78 R100/7,'60 Metro,'59 A35,'71 Pantera #1382
"The more you drive, the less intelligent you get" --Miller
"Computers are useless. They can only give you answers." -P. Picasso
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