Section A - Cooling System, continued.....

Subject: Re: [Fwd: [Fwd: Radiators, Modine]] Date: Sun, 30 Aug 1998 21:23:10 EDT From: MWood24020@aol.com To:

Steve- I definitely think Mr. Barker was joshing with you. As a matter of fact (supposition?), I think he was paying all of you a somewhat backhanded compliment! Mike PS: Astro Chrome will have my motorcycle stuff by Monday. Thanks again for the tip.
Subject: Re: u s radiators Date: Sun, 30 Aug 1998 18:57:18 -0700 From: Bob Palmer To: "Joe Hankins" CC: :@ames.ucsd.edu

Joe,
In a "normal" radiator, all of the tubes are in parallel between the two end tanks. To make such a radiator a two or three pass, the end tanks are blocked off so as to make it into two or three sections that flow in series.
I certainly agree that slower flow velocity doesn't correlate one-to-one with cooling capacity. I will borrow the chemist's concept here of a "rate limiting step" and apply it to the radiator. Then, usually the rate limiting step is transfer of heat between the radiator surfaces and the air. Usually, the coolant flow is fast enough not to be a limiting factor. This can be confirmed by measuring the temperature drop between inlet and outlet. If there is a small temperature drop relative the the radiator/air temperature difference, then coolant flow is not limiting. It is amusing to me in this regard that the U.S. Radiator people brag about a bigger temperature difference with the three-pass versus the single pass. What they are actually pointing out is the PROBLEM with a three pass when it overly restricts the water flow.
Bob
At 09:38 AM 8/31/98 -0400, you wrote: >Guys, > >I'll freely admit that I'm not entirely clear on how radiators are >constructed, so I'd appreciate it if you could set me straight on the >difference between single pass and 3 pass. Ididn't realize that one was a >series arrangement and the other was parallel. > >The effects of bends are not neglible, by the way. But, they can be >accounted for by considering them to be an added length of pipe. > >The key point is the one Brian made. Reistance to flow, which would have >the effect of reducing the velocity of the water in the radiator, doesn't >translate directly into poorer cooling. > >Joe > Robert L. Palmer Dept. of AMES, Univ. of Calif., San Diego rpalmer@ames.ucsd.edu rpalmer@cts.com
Subject: Re: Ford and Volvo fans Date: Wed, 2 Sep 1998 16:19:02 -0600 From: "John Crawley" To: Ray McCrary CC: tigers@autox.team.net

Hi Ray:
The Volvo fan O.D. seems to be 14 1/4 when measured with my carpenter's tape. The center hole is 1 3/16. The part no is Volvo 683541 IMP 69 34. The four locating holes line up with the TIGER pump and I have successful used them for centering the fan but a better install is to use the Volvo aluminum spacer turned down to 1/4 in thickness as this will give exact centering.
Godspeed Jc

Subject: Re: Coolants Date: Mon, 21 Sep 1998 22:51:40 EDT From: BMcgu22954@aol.com To: STUART_BRENNAN@HP-Andover-om3.om.hp.com, tigers@autox.team.net

The orange stuff can be purchased as Texaco-Havoline Dexcool. It is a silicate and phosphate-free ethelene glycol antifreeze/coolant. Supposed to protect against aluminum corrosion. I use it in my '95 Jeep, '84 Toyota, '90 Ford, '66 Tiger. I mix it 25% , plus Water Wetter in the Tiger, with no overheating discharge.(so far)
Bruce McGuire
Subject: Re: Hot Tiger in Houston & Volvo Date: Fri, 9 Oct 1998 14:51:30 -0600 From: "John Crawley" To: CC: Joe Parlanti, "Tiger's Den"

The Volvo fan O.D. seems to be 14 1/4 when measured with my carpenter's tape. The center hole is 1 3/16. The part no is Volvo 683541 IMP 69 34. The four locating holes line up with the TIGER pump and I have successful used them for centering the fan but a better install is to use the Volvo aluminum spacer turned down to 1/4 in thickness as this will give exact centering.
Godspeed Jc

Subject: Another current Ford Part Number Date: Wed, 14 Oct 1998 14:48:19 -0700 From: Dave Binkley To: "'Tiger List'"

I picked up a new right angle heater hose fitting, the one that goes into the intake manifold just behind the thermostat housing, today at the local Ford dealer. The current part number is C6AZ-18599-B.
Dave
Subject: Re: Need lower rad hose p/n Date: Tue, 27 Oct 1998 06:58:46 PST From: "Bill Lawrence" To: tigers@autox.team.net, lrw@aop.com, CoolVT@aol.com

Tigers,
My Mk1A required the NAPA 7746 lower radiator hose, not the NAPA 7775. With a little trimming it fit fine. Thankyou for the suggestions.
After replacing the driver's side motor mount, thank you Sunbeam Specialties for your prompt turn around time, Ifinally had an opportunity to blow the lizards out of my Tiger.
I have a couple questions, is there a "oversized" lift dot stud? Or perhaps one with a fine thread machine/lock nut combo? The passenger side male connector that holds the tonneau cover/softtop in place has come loose. It is a coarse thread, screw in type, and frankly was always stressed even before the restoration. I am looking for suggestions, because the coarse screw threads are not biting into the sheet metal.
I also have a set of 6 13X6" Panasport lights (9lbs each) that I have saved from my Datsun 510. I know the bolt pattern is different, but, what about the offset? I believe these are a 23 positive (approxomately, 4.0" from rim edge to hub) , what is the proper offset for a Sunbeam Tiger? Would it be worth it to re-size the bolt pattern to utilize these wheels?
Bill Lawrence Ft. Lauderdale

>>>>>NAPA Part No. 7775 will fit the TIGER, just cut 5 inches off the larger end. The hose's shape will fit perfectly and even has allowances to follow the shape of the Tiger frame. > >The lower hose I purchased for my IA a few years ago was Lower #7746 > >Upper #7459 > These were both NAPA #'s Mark L<<<<<<<<<<<<<<<<<<<<>
Subject: Radiators for sale Date: Sat, 19 Dec 1998 13:43:03 EST From: PLRRESTO@aol.com To: tigers@autox.team.net

Tiger Radiators for Sale;
Brand new Brass/Copper radiators, new brackets, new core, new header plates, new thicker- walled tanks, and all new connections. These radiators look just like the originals, except for the modern updated core design. Core is three row and works best when used with a good fan such as the Ford C9DZ-8600-A.
All materials and workmanship quaranteed for one year. Satisfaction quaranteed or your money back, with return of radiator, of course. All radiators sold only after phone conversation with yours truly to determine whether or not my product/products will solve your problem. In other words, these radiators are not intended to cool 400 HP race cars or 260's bored out to 289's.
Over 130 of these radiators sold over the past ten years with lots of satisfied customers. One-off radiators made for additional cost depending on modifications.
Price: $400 plus shipping; FOB San Jose, CA
Paul Reisentz Reisentz Restorations 408-369-0470
Sorry for the advertisment; but I figured if Tiger Technologies could do it , so could I.

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These "Tech Threads" were originaly gleaned from old saved Tiger List Subscriber's submissions Tiger List Membership Link

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