[Tigers] Tigers Digest, Vol 10, Issue 231

Fri Sep 28 12:41:34 MDT 2018

Regarding Plastic cam gear teeth,  My 1979 351 failed at 143K miles.  Put steel gears in at that time.

I agree with Bugzy about the Edelbrock carb boiling.  I went back to a new Holley 1848. I could not tolerate the poor start up and stalling on warm restart of the Edelbrock.

Tom calvert.

-----Original Message-----
From: tigers-request <tigers-request at autox.team.net>
To: tigers <tigers at autox.team.net>
Sent: Fri, Sep 28, 2018 2:16 pm
Subject: Tigers Digest, Vol 10, Issue 231

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Today's Topics:

  1. Re: Carb Question (Mark Rense)
  2. Fwd: nylon teeth (James Armstrong)
  3. Re: Fwd: nylon teeth (Ron Fraser)

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

Message: 1
Date: Thu, 27 Sep 2018 14:09:16 -0400
From: Mark Rense <mark44124 at gmail.com>
To: Joe Brown <jbbrown1980 at gmail.com>
Cc: Tigers Den <Tigers at autox.team.net>
Subject: Re: [Tigers] Carb Question
Message-ID:
    <CA+8dKTuoVztX+owZjWPYX4_iDdnO15JRcAFJrdaJTBQQfNjuqA at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Are you trying to be authentic or do you just want the best fuel metering
system? As an engine builder I?ve used many different carbs in many
different applications. I use a gas analyzer to get mixture correct and
have found the Edelbrock (Carter) series easiest to tune. The 1403 500 CFM
is a great and responsive carb for anything under 250 hp.  However, they
are definitely more susceptible to gas boiling, and we all know how cool it
is under a Tiger bonnet!

The 1848 is what I think came on a LAT1 kit and worked well on the 260.
Also the Holley 570 Street Avenger works well on moderately breathed-upon
engines and tolerates more thermal input but comes way too rich out of the
box. Plus they need a full setup (butterfly position, accept pump, bowl
cleaning and float setup) before running, as do all new Holleys. There is
also a Street Demon with poly bowls that is claimed to run much cooler but
at 625 CFM is much too big for a 260.

There are many new FI systems out there and to me the biggest advantage is
cool recirculated fuel, instant tuning and tolerance of the poor quality
swill that comes out of the pump. I am thinking that I will install the
Holley Sniper kit on one of my Tigers this winter as it is the least
invasive system I?ve seen so far.

https://www.holley.com/products/fuel_systems/fuel_injection/sniper_efi/sniper_4bbl_tbi_kits/parts/550-516

Good luck!
Bugz

On Tue, Sep 25, 2018 at 7:47 PM Joe Brown via Tigers <tigers at autox.team.net>
wrote:

> Hey,
>
> I will be rebuilding my engine soon (original 260, no modifications) and I
> want to use a new carburetor.  The original owner had a Holley 650cfm on it
> and I understand that something smaller will work better.
>
> So which is a better solution, a Holley 1848 (465cfm) or an Edelbrock 1403
> (500cfm).
>
> Is anybody using a FiTech system?  I have a friend who is using the FiTech
> Go EFI 4 on his old truck and he swears by it.
>
> Thanks,
> Joe Brown
> _______________________________________________
>
> tigers at autox.team.net
>
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>
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Message: 2
Date: Fri, 28 Sep 2018 09:02:58 -0400
From: James Armstrong <rollright at aol.com>
To: tigers at autox.team.net
Subject: [Tigers] Fwd: nylon teeth
Message-ID: <16620466ede-1ec4-d87 at webjas-vaa053.srv.aolmail.net>
Content-Type: text/plain; charset="utf-8"

Pay attention Mk 1A and Mk 2 owners to info from Dr. Ron Fraser !!!
?
 If you have the face of the engine off, CHANGE THE TIMING GEAR
FROM NYLON/ALUMINUM TO STEEL
It IS an interference engine.
?
Jim Armstrong
From: rfraser at bluefrog.com
To: rollright at aol.com
Sent: 9/27/2018 6:22:27 PM Eastern Standard Time
Subject: RE: nylon teeth

Jim
??????????????? It was one of those better ideas to quiet the chain noise.
I?m sure Ford tested it extensively and I?m sure it ran fine for their tests but it did not take into account time, years of time.
?
I don?t know when Ford changed back to steel, my reference material only goes to 1969 and it still shows nylon teeth.
?
Ron
?
From: James Armstrong <rollright at aol.com> 
Sent: Thursday, September 27, 2018 3:59 PM
To:rfraser at bluefrog.com
Subject: Re: nylon teeth
?
What idiots
?
When did they go back to steel?
?
Jim A
?
In a message dated 9/27/2018 2:55:56 PM Eastern Standard Time, rfraser at bluefrog.com writes:
?
Jim
??????????????? Ford started using the nylon teeth on an aluminum hub March 1965; prior to that it was steel gears.
Ron
?
From: James Armstrong <rollright at aol.com> 
Sent: Thursday, September 27, 2018 2:35 PM
To:rfraser at bluefrog.com
Subject: nylon teeth
?

Do you mean they started using nylon teeth or changed from nylon teeth, Ron?
?
?
Jim Armstrong
Mk 1A
382002083 LRXFE
Code 86
TAC #....
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Message: 3
Date: Fri, 28 Sep 2018 12:25:57 -0400
From: "Ron Fraser" <rfraser at bluefrog.com>
To: <tigers at Autox.Team.Net>
Subject: Re: [Tigers] Fwd: nylon teeth
Message-ID: <006d01d45747$f54c2650$dfe472f0$@bluefrog.com>
Content-Type: text/plain; charset="utf-8"

The nylon teeth on the aluminum hub cam gear started in March 1965.

The nylon teeth crack and break off with age and use

If you are working on an engine and you find the nylon teeth ? replace it before it fails completely and leaves you stranded somewhere.

B19KC, A11KK, A22KK engines will have this nylon toothed gear

All engines before March 1965 have the steel gears.

I do not know when Ford stopped using this nylon gear and went back to steel.

Ron Fraser

From: Tigers <tigers-bounces at autox.team.net> On Behalf Of James Armstrong via Tigers
Sent: Friday, September 28, 2018 9:03 AM
To: tigers at autox.team.net
Subject: [Tigers] Fwd: nylon teeth

Pay attention Mk 1A and Mk 2 owners to info from Dr. Ron Fraser !!!

If you have the face of the engine off, CHANGE THE TIMING GEAR

FROM NYLON/ALUMINUM TO STEEL

It IS an interference engine.

Jim Armstrong

  _____  

From: rfraser at bluefrog.com <mailto:rfraser at bluefrog.com> 
To: rollright at aol.com <mailto:rollright at aol.com> 
Sent: 9/27/2018 6:22:27 PM Eastern Standard Time
Subject: RE: nylon teeth

Jim

                It was one of those better ideas to quiet the chain noise.

I?m sure Ford tested it extensively and I?m sure it ran fine for their tests but it did not take into account time, years of time.

I don?t know when Ford changed back to steel, my reference material only goes to 1969 and it still shows nylon teeth.

Ron

From: James Armstrong <rollright at aol.com <mailto:rollright at aol.com> > 
Sent: Thursday, September 27, 2018 3:59 PM
To: rfraser at bluefrog.com <mailto:rfraser at bluefrog.com> 
Subject: Re: nylon teeth

What idiots

When did they go back to steel?

Jim A

In a message dated 9/27/2018 2:55:56 PM Eastern Standard Time, rfraser at bluefrog.com <mailto:rfraser at bluefrog.com>  writes:

Jim

                Ford started using the nylon teeth on an aluminum hub March 1965; prior to that it was steel gears.

Ron

From: James Armstrong <rollright at aol.com <mailto:rollright at aol.com> > 
Sent: Thursday, September 27, 2018 2:35 PM
To: rfraser at bluefrog.com <mailto:rfraser at bluefrog.com> 
Subject: nylon teeth

Do you mean they started using nylon teeth or changed from nylon teeth, Ron?

Jim Armstrong

Mk 1A

382002083 LRXFE

Code 86

TAC #....

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