80-96-list-digest Wednesday, August 12 1998 Volume 02 : Number 279



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Ford Truck Enthusiasts - 1980-1996 Trucks and Vans
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In this issue:

FTE 80-96 - Muffler Explosion - 1980 F250 Ranger 351 M - 65,000 miles
RE: FTE 80-96 - 300 Inline Six
FTE 80-96 - Re: 300 inline 6
FTE 80-96 - Door lock problem
Re: FTE 80-96 - Muffler Explosion - 1980 F250 Ranger 351 M - 65,000 miles
FTE 80-96 - H*LP!!! 89 7.3l diesel won't start
Re: FTE 80-96 - Muffler Explosion - 1980 F250 Ranger 351 M - 65,000 miles

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Date: Tue, 11 Aug 1998 07:51:20 -0400
From: Dick Hughes
Subject: FTE 80-96 - Muffler Explosion - 1980 F250 Ranger 351 M - 65,000 miles

Hello:

On Sunday, I started up my truck and there was a _very_
loud explosion. Sounded like a sonic boom. The neighbours
came a-running (g.) My heart must be in good condition for
I am still here. Scared the daylights out of me.

The muffler opened up along a seam. It looked as though
someone had taken a large size can opener (or saw) and run a
straight line down the muffler. (cylinder shaped). Muffler has
approx. 6100 miles on it.

Manual defines Muffler Explosion (ME) as an explosion
which takes place in the exhaust system and is expelled
from the tailpipe. An explosion occurs when exhaust, which
is unburned fuel, is ignited.

Causes could be: (.) engine vacuum leak; (.) worn distributor;
(.) incorrect engine timing; (.) dirty or worn carb; (.) worn
parts in the intake or exhaust valve train.

Manual goes on to state that if the explosion is out the tailpipe,
look for (.) a sluggish air valve inside the snorkel of the carb
air file (.) a faulty air pump diverter valve of the air reaction
system.

This is the first time I have experienced such a happening.

Mechanic who installed muffler says that the muffler warranty
does not apply since the cause of the muffler exploding was
the unburned fuel being ignited.

Going to replace the muffler today. Has anyone experienced
such a happening? Anyone care to offer advice as to what I
should look forward to avoid a recurrence. I have the thought
in my mind that there could have been a fault in the muffler
that caused it to explode. I wonder why the explosion was not
out the tail pipe.

My apologies for the length of the message.

Dick

- --
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Date: Tue, 11 Aug 1998 08:14:52 -0500
From: Ron Madurski
Subject: RE: FTE 80-96 - 300 Inline Six

Yeah, but just try to do that towing 4500 lbs. My old truck with the
300 was very anemic above about 55 or 60. My 6.9L diesel is a whole
different story, I won't take it much past 75 since it winds out so bad
(for a diesel). More on that coming soon...

- -----Original Message-----
From: Anthony Rio [mailto:trio tigroupchicago.com]
Sent: Monday, August 10, 1998 10:17 PM
To: 'big'
Subject: RE: FTE 80-96 - 300 Inline Six


My 300 I6 has no problem doing 80 mph. Don't know how much faster I
need to go!! :)
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Date: Tue, 11 Aug 1998 11:28:20 -0500
From: lordjanusz juno.com (Paul M Radecki)
Subject: FTE 80-96 - Re: 300 inline 6

>Date: Mon, 10 Aug 1998 18:25:43 -0700
>From: Gene Ball
>Subject: Re: FTE 80-96 - 300 Inline Six
>
>David have you been to cliffordperformance.com
>Anyways I have a 300I-6 I put about $3500 in the my motor, just the
>top!
>cam kit , valve job, decked the head, ported the head, 4 barrel
>intake and carb,
>headers, ignition, distributor, and a bunch of petty stuff! It runs
>much better!
>But it still needs to be jetted and tuned, plus I need a little longer
>pushrod
>before I try to get it all dialed in. Any qustions? Just ask!
>Geno

The PERF list has discussed this subject at length, except with regard to
the 351/400 M block rather than the 300. The consensus: build the weird
engine if you really want to (it's YOUR truck) but it will be cheaper and
easier to just swap in a Windsor or 460. Better parts availiability =
more performance per dollar.

>>
>> Gotta wonder what supercharging would do for this situation.
>Anybody ever
>> blow a big six? Probably a question for the PERF list, but most of
>those guys
>> are into big blocks. Can't blame 'em--makes sense in a truck!
>>
>
I have found no economical way to make large improvements to my 300.
Mine is a fuelie, and the bottleneck is the speed-density airflow sensor.
Without mass air, the computer will not accept major changes. If it
won't even take a better cam, forget the blower. If you're carburated,
you may have a chance at making it work but dropping in a 351W would be
cheaper and easier IMHO. lordjanusz

'94 F150 (300ci) '73 F100 (mystery FT block) '97 Saturn (hers)

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Date: Tue, 11 Aug 1998 11:33:45 -0700
From: "Gerald L. Hinkle Jr. CPA"
Subject: FTE 80-96 - Door lock problem

Hello list people! I have a new problem now I hope some one can help me
with. My 94 F-350 has electric door lock switches on the drivers and
passengers side. After my son cycled the lock/unlock switch back and forth
about a hundred times :( the drivers side lock no longer responds. Now to
unlock I must use a Key and to lock I must manually push it down. I am
real lazy I guess but this problem is bugging the heck out of me. By habit
I hit the lock button and exit the truck not always remembering that the
drivers side remains unlocked? Could some one walk me through the fix?
Thanks!
Jerry Hinkle Jr. CPA
"RULEMAKER" 94 F-350 Crew Cab 4x4
"LTS-ROK" 80 JEEP CJ-5
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Date: Tue, 11 Aug 1998 15:07:30 -0400
From: "Matt Fitzsimmons"
Subject: Re: FTE 80-96 - Muffler Explosion - 1980 F250 Ranger 351 M - 65,000 miles

The very same thing happened to my '82 Bronco a few years ago. I happened
to be driving along one day, hit a bump and the ignition died, coasted to
the next bump and the ignition came back. The explosion was deafening. The
mufflers were wide open along the seams. The engine was still running, but
making quite a roar. My problem turned out to be a corroded connection to
the coil.

I had a heck of a time 'sneaking' in the driveway with headers and wide
open exhaust. I had to replace my mufflers at my expense as well.

Hope that helps a bit.

Matt
- ----------
> From: Dick Hughes
> To: 80-96-list ford-trucks.com
> Subject: FTE 80-96 - Muffler Explosion - 1980 F250 Ranger 351 M - 65,000
miles
> Date: Tuesday, August 11, 1998 7:51 AM
>
> Hello:
>
> On Sunday, I started up my truck and there was a _very_
> loud explosion. Sounded like a sonic boom. The neighbours
> came a-running (g.) My heart must be in good condition for
> I am still here. Scared the daylights out of me.
>
> The muffler opened up along a seam. It looked as though
> someone had taken a large size can opener (or saw) and run a
> straight line down the muffler. (cylinder shaped). Muffler has
> approx. 6100 miles on it.
>
> Manual defines Muffler Explosion (ME) as an explosion
> which takes place in the exhaust system and is expelled
> from the tailpipe. An explosion occurs when exhaust, which
> is unburned fuel, is ignited.
>
> Causes could be: (.) engine vacuum leak; (.) worn distributor;
> (.) incorrect engine timing; (.) dirty or worn carb; (.) worn
> parts in the intake or exhaust valve train.
>
> Manual goes on to state that if the explosion is out the tailpipe,
> look for (.) a sluggish air valve inside the snorkel of the carb
> air file (.) a faulty air pump diverter valve of the air reaction
> system.
>
> This is the first time I have experienced such a happening.
>
> Mechanic who installed muffler says that the muffler warranty
> does not apply since the cause of the muffler exploding was
> the unburned fuel being ignited.
>
> Going to replace the muffler today. Has anyone experienced
> such a happening? Anyone care to offer advice as to what I
> should look forward to avoid a recurrence. I have the thought
> in my mind that there could have been a fault in the muffler
> that caused it to explode. I wonder why the explosion was not
> out the tail pipe.
>
> My apologies for the length of the message.
>
> Dick
>
> --
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------------------------------

Date: Tue, 11 Aug 1998 23:33:04 -0400
From: Ken Payne
Subject: FTE 80-96 - H*LP!!! 89 7.3l diesel won't start

Forwared for: "Mike S. in FL"

If it's not one thing it's another: Can anyone tell me how to find out
if the injector pump is working? I was hit by an idiot and now that I'm
able to try to get my truck working again, it won't start. I found
something in the book that also says to "check the electrical connection
to the fuel supply cut off solenoid in the front of the fuel injection
pump..." but I can't find it. I tried to remove one of the injector
lines and see how much fuel comes out while cranking (a good strong
crank!) but it barely drips out. It seems like there should be more
than what I get, but I don't know?

It has run since the accident a couple of times...

Thanks,
Mike


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------------------------------

Date: Tue, 11 Aug 1998 23:46:05 -0700
From: Randy
Subject: Re: FTE 80-96 - Muffler Explosion - 1980 F250 Ranger 351 M - 65,000 miles

Hahahahaha,
Dick, thanks for the memories! I just had flashbacks to my '77 AMC
Matador station wagon (a real B.C. [Birth Control] car, ya know). In
my not so intelligent phase (high school) we'd go out along a stretch
of road about 50 mph and turn off the ignition for about 4-5 seconds.
When you turned the key back to 'ON' woooohooooo we'd wake the
dead!!! That lasted about 5 or 6 times until the muffler blew it's
seams!!!
That's also the car I took to the local gas station where my buddy
was working and went thru the car wash and decided to smoke the tires
on the way out (wet pavement + a 16 yr old w/a lead foot =
stupidity). With the front tire in the groove where you stop for the
wash the car didn't move so I kept smoking 'em and keep on going and
on and on. I couldn't see to drive out when I was done I just knew to
keep it straight ahead! I immediately left and the next day at school
he told me that 4 or 5 people stopped to ask him if he was alright and
if they should call the fire dept. from all the smoke!!!!! The tire
was baby-butt smooth when I got home. DUMMY!

Dick Hughes wrote:
>
> Hello:
>
> On Sunday, I started up my truck and there was a _very_
> loud explosion. Sounded like a sonic boom. The neighbours
> came a-running (g.) My heart must be in good condition for
> I am still here. Scared the daylights out of me.
>
[snip]
>
> My apologies for the length of the message.
>
> Dick....


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