Mr. Stewart replied on Sunday to the message I sent him concerning Tiger
cooling systems. In case you "trashed" the sequence, I an reconstructing
it here so the thread can be followed.
Before I reply, with the wrong dimensions, does anyone want to take a
crack at the "correct" bushing and impeller shaft locations for the MKI
Aluminum (and MKII, dimensions).
Are 5/8 to 1/inch bushing adapters desired, or would you want to remove
your old one and press it on the new shaft, rather than a relocated 5/8
stock unit?
If the normal Ford 5/8 shaft fan mount is used (allowing changes without
having to bore the new fan) are there any special critical dimensions?
Sunbeam Tiger Workshop Manual, p 15: 260 = 5.15"; 289 = 5.43"
CAT Shop Notes 4th, A-10: "Front face of pulley hub to rear of
housing:
260 = 5.15" (13
cm.), 289 = 5.43" (13.8 cm.)
CAT Shop Notes 4th, A-10: "1/4 inch further back"
CAT Shop Notes 4th, A-12: Hub Ford part number: B9ME-8553-A
CAT Shop Notes Supplement II: "..in addition there is a diamond
with a
"C"
within, the letters HTM and an S." ..This may
mean Lincoln/Mercury"
TE/AE Tech Tip Manual, B5: "Tiger factory shop manual not
correct.
Should be
260 =
4.875;, 289 = 5.100"."
These references are a little dated, but will the "real" dimension
please stand up.
I believe he is interested in being co-operative, and would probably
deliver more than one "Tiger" Hi-Po pump design, at additional cost. His
final "connnect the expansion tank to the heater hose" is an interesting
proposition, and would not require any expansion tank movement, or inlet
(right side) radiator tank modifications
Of course, anyone should feel free to contact him directly. I am simply
trying to simplify the number of responses he must plow thru before an
order hits his desk.
Steve
<===========================================================================>
Here is the e-mail correspondence, in order sent/received:
Sun, 14 Sep 1997, to Tiger List:
Steve Laifman wrote:
Hi All,
Looked up the Stewart Components web site:
<http://www.stewartcomponents.com/index.htm>
and found lots of interesting stuff and links, but mostly Chevvy. Sent
an inquiry and received the following reply:
Subject: Cooling Systems
Date: Sun, 14 Sep 1997 08:37:35 -0400 (EDT)
From: HStew10677@aol.com
To:laifman@flash.net
The three major problems on the Sunbeam Tiger cooling system:
The water pump is insufficient, Stewart will be offering a pump within 2
months that will use a casting identical to the stock aluminum unit with
about double the capacity. A modified impeller designed for the 460 Ford
pump
will provide the increased performance.(part #16103 @$69.95) To achieve
the
Sunbeam configuration you need only press the fan hub on a bit further
and
slip a bushing on the shaft to align the larger bore Sunbeam components.
The radiator cap is on the pressure side of the system (so is the Cobra,
and
it also over heats). The higher flow pump will push water out the cap if
this
is not fixed. Replace the tank with a standard thermostat housing and
Robertshaw thermostat modified by Stewart (180 degree model is part
#301
@$10.95) and install a Moroso surge tank plumbed to the inlet side of
the
pump and the low pressure side of the radiator. This isolates the cap
from
the pump pressure.
The radiator is too small for traditional copper/brass designs. The
newer 2
row 1 1/4" tube aluminum radiators such as the Griffin units are much
better
and will offer the performace of a copper/brass with about 40% more
surface
area.
Stewart Components
<===================================================================>
> Following thru on my previous message, I sent the attached inquiry to
> Mr. Stewart. I hope I captured your questions.
> Subject: Re: Cooling Systems
> Date: Sun, 14 Sep 1997 21:11:51 +0100
> From: Steve Laifman <laifman@flash.net>
> To: HStew10677@aol.com
> References: <970914083735_334722696@emout16.mail.aol.com>
>
> Dear Mr. Stewart,
>
> Thank you for your reply to my inquiry on the Tiger. I have taken the
> liberty of forwarding your comments to the international Tiger net,
> along with your web site URL.
>
> I am sure we are all looking forward to your release date of the new
> aluminum pump. Would it be available with the correct depth and bushing?
> I am sure I can get the correct dimensions for you, if you were willing
> to make a Tiger spec spacing.
>
> I am not entirely clear on your outlet suggestions. The normal Tiger
> thermostat housing is a standard Ford unit. It is directly connected to
> the upper inlet of the left side of the cross-flow radiator. A few
> inches below this inlet is a hose connection to the expansion tank, and
> a small return tube/hose to the top of the tank. To remove the expansion
> tank would not require a change to the thermostat housing, although the
> hi-po thermostat may be in order.
>
> While familiar with the Moroso name, the "surge tank" is not illustrated
> in our suppliers catalogs (although a Dedenbear unit is listed for Chevy
> and Chrysler).
Steve Laifman
<+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>
Latest reply:
Date:
Mon, 15 Sep 1997 05:55:38 -0400 (EDT)
From:
HStew10677@aol.com
To:
laifman@flash.net
If you supply the specifications we can offer a special Tiger pump for a
slightly higher price.
I had the expansion tank on the Tiger confused with the 60's big block
style.
Simply disconnect it and install the thermostat.
The Dedenbear units I have seen have the same problem the stock unit
has, the
cap is on the pressure side of the system. The Moroso unit is typically
used
on circle track cars. Circle track suppliers such as Afco, Speedway, and
Coleman offer their own versions.
Stewart Components
<------------------------------------------------------------------------->
Last reply:
Date: Mon, 15 Sep 1997 06:18:19 -0400 (EDT)
From: HStew10677@aol.com
To: laifman@flash.net
Correcting the Tiger expansion tank may be as simple as re-routing the
line
that connects the tank to the radiator to the inlet side of the pump
(splice
into the heater hose if both ports are being used).
If you have the space this would be a very simple yet proper fix.
Stewart Components
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