[DeTomaso] DeTomaso Digest, Vol 218, Issue 19
Will Kooiman
will.kooiman at gmail.com
Mon Aug 22 23:28:38 EDT 2022
Hi Fred,
Correct, it is a Salisbury type rear-end - essentially a Dana-44, but that doesn’t really matter.
I had half shafts custom built by Action Machine - www.ActionMachineInc.com.
Image attached.
If you go to their website or any driveshaft website, they'll direct you to an order form - but you don't want that. They're not designed for half shafts. They're designed for drive shafts.
You want to measure everything very carefully, and then call them. It took me a while to get someone to answer, but once I got a technician, he was very helpful. He built exactly what I asked for. I couldn't be happier.
Will.
On 8/22/22, 3:14 PM, "DeTomaso on behalf of Fred Foreman" <detomaso-bounces at server.detomasolist.com on behalf of fred4man at att.net> wrote:
Will,
Your Cobra uses a Salsbury differential, I believe???
What 1/2 shafts did you find and end up using?? I'm looking for some
on the Iso.
Fred Foreman
On Monday, August 22, 2022 at 11:00:05 AM CDT,
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Daily Detomaso List DigestToday's Topics:
1. NPC - Weird Failure (Will Kooiman)
2. Re: NPC - Weird Failure (Christopher Kimball)
3. Re: NPC - Weird Failure ([5]byrdjf at embarqmail.com)
I bought a Contemporary Classic 427 Cobra replica about 7 years ago.
I love this car. When the weather is nice, it's like driving a
4-wheel
Harley with open pipes. It's very fun to cruise in the morning when
the sun is coming up, or in the late evening when the stars are just
start coming out, or really whenever it isn't super hot or raining.
It's even fun when it's cold outside.
But it has never felt like a big block in a 2,200 lb car. The 428
made
lots of noise, but it pulled like a 289. So, I replaced it with a
427
(482 actually) and a Tremec 5-speed.
I put quite a few miles on this engine, but it wasn't running that
great either. It had lots of flat spots. It would pull very hard
for
a few seconds, then it would go dead. I didn't push it hard, because
the Jaguar half shafts in the rear were twisted about 30 degrees.
So,
I figured I would drive easy until I got the half shafts replaced.
I drove to Arkansas from Miami during Covid. On the way back, it
died. It would not run - no way, no how. There was no gas to the
carburetor. I figured either severe vapor lock or maybe the fuel
pump
went out. I towed it from Gainesville back home. After
deliberation,
I decided to drop the fuel tank, and check everything tank to
carburetor. In the process, I would also change the half shafts.
The first weird thing I discovered was the fuel line at the tank.
The
tank is a nice, aluminum, baffled tank, with a fuel cell style oval
cap. It has -8 bulkhead fittings for fuel and vent. But the flex
hose
that attaches to the -8 siphon is -6 with weird fittings that reduce
down to about -4. I replaced all of this with an in tank pump that
regulates to 60psi. It has a -6 outlet, which is plenty at 60psi. I
hooked it all up, and I still had 0psi at the engine. I checked the
pressure at the pump - 60psi - so, yes I hooked it all up correctly.
There is a -6 male union right in front of the rear tire. It
attaches
the flex line to a hard line that goes to the front of the car. I
checked that and noticed the union was cocked to one side. I removed
it, but had to use wrenches the whole time. That was the first
indication something was wrong. The threads on the hard line side
were
stripped. It took me a while to figure out what happened, mostly
because it was hard to see (still no lift). The tube nut on the hard
line had split - most likely from over tightening. When it split, it
caused the fitting to cock to one side and block the fuel. It was
effectively a shut off valve.
I have only had time for a short test run to the gas station, but I
suspect the flat spots are gone, which will be nice.
Disclaimer - I had never had any of this apart before, so I didn't
break it. I do lots of dumb stuff, but not this time.
At any rate, I now have perfect pressure, tank to carburetor, and
it's
all wrapped in DEI fuel line wrap to keep it cool. I also have super
strong half shafts, so I'm ready to start cruising topless again.
It is amazing how one, tiny thing can disable an entire car. Kind of
like the pebble that took down Goliath!
Glad you got it fixed.
Sincerely,
Chris
Sent via the Samsung Galaxy S9+, an AT&T 5G Evolution capable
smartphone
-------- Original message --------
From: Will Kooiman <[6]will.kooiman at gmail.com>
Date: 8/22/22 5:01 AM (GMT-08:00)
To: DeTomaso_List <[7]DeTomaso at server.detomasolist.com>
Subject: [DeTomaso] NPC - Weird Failure
I bought a Contemporary Classic 427 Cobra replica about 7 years ago.
I love this car. When the weather is nice, it's like driving a
4-wheel
Harley with open pipes. It's very fun to cruise in the morning when
the sun is coming up, or in the late evening when the stars are just
start coming out, or really whenever it isn't super hot or raining.
It's even fun when it's cold outside.
But it has never felt like a big block in a 2,200 lb car. The 428
made
lots of noise, but it pulled like a 289. So, I replaced it with a
427
(482 actually) and a Tremec 5-speed.
I put quite a few miles on this engine, but it wasn't running that
great either. It had lots of flat spots. It would pull very hard
for
a few seconds, then it would go dead. I didn't push it hard, because
the Jaguar half shafts in the rear were twisted about 30 degrees.
So,
I figured I would drive easy until I got the half shafts replaced.
I drove to Arkansas from Miami during Covid. On the way back, it
died. It would not run - no way, no how. There was no gas to the
carburetor. I figured either severe vapor lock or maybe the fuel
pump
went out. I towed it from Gainesville back home. After
deliberation,
I decided to drop the fuel tank, and check everything tank to
carburetor. In the process, I would also change the half shafts.
The first weird thing I discovered was the fuel line at the tank.
The
tank is a nice, aluminum, baffled tank, with a fuel cell style oval
cap. It has -8 bulkhead fittings for fuel and vent. But the flex
hose
that attaches to the -8 siphon is -6 with weird fittings that reduce
down to about -4. I replaced all of this with an in tank pump that
regulates to 60psi. It has a -6 outlet, which is plenty at 60psi. I
hooked it all up, and I still had 0psi at the engine. I checked the
pressure at the pump - 60psi - so, yes I hooked it all up correctly.
There is a -6 male union right in front of the rear tire. It
attaches
the flex line to a hard line that goes to the front of the car. I
checked that and noticed the union was cocked to one side. I removed
it, but had to use wrenches the whole time. That was the first
indication something was wrong. The threads on the hard line side
were
stripped. It took me a while to figure out what happened, mostly
because it was hard to see (still no lift). The tube nut on the hard
line had split - most likely from over tightening. When it split, it
caused the fitting to cock to one side and block the fuel. It was
effectively a shut off valve.
I have only had time for a short test run to the gas station, but I
suspect the flat spots are gone, which will be nice.
Disclaimer - I had never had any of this apart before, so I didn't
break it. I do lots of dumb stuff, but not this time.
At any rate, I now have perfect pressure, tank to carburetor, and
it's
all wrapped in DEI fuel line wrap to keep it cool. I also have super
strong half shafts, so I'm ready to start cruising topless again.
Good Luck . . . Hope you have found "da Problem".
I enjoyed your narrative expecially since I have been going through =
something (sort of) similar on a MUCH smaller scale.
For months now, I am looking for fuel problem with a TR6.
Joe
-----Original Message-----
From: DeTomaso <[8]detomaso-bounces at server.detomasolist.com> On Behalf
Of =
Will Kooiman
Sent: Monday, August 22, 2022 8:01 AM
To: DeTomaso_List <[9]DeTomaso at server.detomasolist.com>
Subject: [DeTomaso] NPC - Weird Failure
I bought a Contemporary Classic 427 Cobra replica about 7 years ago.
=20
I love this car. When the weather is nice, it=E2=80=99s like driving a
=
4-wheel Harley with open pipes. It=E2=80=99s very fun to cruise in the
=
morning when the sun is coming up, or in the late evening when the
stars =
are just start coming out, or really whenever it isn=E2=80=99t super
hot =
or raining. It=E2=80=99s even fun when it=E2=80=99s cold outside.
=20
But it has never felt like a big block in a 2,200 lb car. The 428 made
=
lots of noise, but it pulled like a 289. So, I replaced it with a 427
=
(482 actually) and a Tremec 5-speed.
=20
I put quite a few miles on this engine, but it wasn=E2=80=99t running =
that great either. It had lots of flat spots. It would pull very hard
=
for a few seconds, then it would go dead. I didn=E2=80=99t push it =
hard, because the Jaguar half shafts in the rear were twisted about 30
=
degrees. So, I figured I would drive easy until I got the half shafts
=
replaced.
=20
I drove to Arkansas from Miami during Covid. On the way back, it
died. =
It would not run =E2=80=93 no way, no how. There was no gas to the =
carburetor. I figured either severe vapor lock or maybe the fuel pump
=
went out. I towed it from Gainesville back home. After deliberation,
I =
decided to drop the fuel tank, and check everything tank to
carburetor. =
In the process, I would also change the half shafts.
=20
The first weird thing I discovered was the fuel line at the tank. The
=
tank is a nice, aluminum, baffled tank, with a fuel cell style oval
cap. =
It has -8 bulkhead fittings for fuel and vent. But the flex hose that
=
attaches to the -8 siphon is -6 with weird fittings that reduce down to
=
about -4. I replaced all of this with an in tank pump that regulates
to =
60psi. It has a -6 outlet, which is plenty at 60psi. I hooked it all
=
up, and I still had 0psi at the engine. I checked the pressure at the
=
pump =E2=80=93 60psi =E2=80=93 so, yes I hooked it all up correctly.
=20
There is a -6 male union right in front of the rear tire. It attaches
=
the flex line to a hard line that goes to the front of the car. I =
checked that and noticed the union was cocked to one side. I removed =
it, but had to use wrenches the whole time. That was the first =
indication something was wrong. The threads on the hard line side were
=
stripped. It took me a while to figure out what happened, mostly =
because it was hard to see (still no lift). The tube nut on the hard =
line had split =E2=80=93 most likely from over tightening. When it =
split, it caused the fitting to cock to one side and block the fuel.
It =
was effectively a shut off valve.
=20
I have only had time for a short test run to the gas station, but I =
suspect the flat spots are gone, which will be nice.
=20
Disclaimer =E2=80=93 I had never had any of this apart before, so I =
didn=E2=80=99t break it. I do lots of dumb stuff, but not this time.
=20
At any rate, I now have perfect pressure, tank to carburetor, and =
it=E2=80=99s all wrapped in DEI fuel line wrap to keep it cool. I also
=
have super strong half shafts, so I=E2=80=99m ready to start cruising =
topless again.
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