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

Subject: Re: RFC/Overheating Tiger (LONG & TIRESOME) Date: Sun, 09 May 1999 15:48:22 -0700 From: Steve Laifman To: Richard F Flynn CC: "Tiger's Den" References: 1

Richard F Flynn wrote:
> > > Running Characteristics @ 70F ambient temps: > - 170F-180F @ 60MPH-70MPH > - 210F-220F @ 30MPH-40MPH > - 250F+ after 15 - 20 minutes of stop/go traffic city (London UK) or > just idling in the drive, where upon it gets finicky, stops running, > stalls, and looses tan(!) fluid from the overflow tube only > (the current specification of my Tiger is included at the bottom of this > message) > > - having cooling system professionally flushed (the system was > drained & refilled 2 weeks ago, so the tan color is a bit > disconcerting, especially knowing it has been seldom used for > the past 3 years)
Make sure it is a "power back flush", and there are souring agents and chemical scale loosener which may still be legal in England .
> > - install Gano filer on radiator
Brass, with flared ends, of course.
> - close gaps & holes around radiator
Need to make new horn lower flat bracket about 1 inch longer, or add an extension, to go through fabricated aluminum flat plate. Double sided tape can hold it in place. Grommet hole for horn wires. And any non-original pathways. Although this is just frosting, not cake.
> > Current Specification > - 1965 Tiger MKI B9471206 > w/289ci engine, transplanted at an unknown date from an unknown origin (in > Texas apparently): > > - thermostat : unknown
Probably 170 to 180, if gauge is correct.
> > - radiator : unidentified high efficiency, unknown number of > cores with 3/8" spacing & 9 ribons/inch
AHA!!!!.
Rick, you should be seeing about 14 of those little buggers per inch, and 3 to four rows of closely spaced copper tubes. This is NOT a high efficiency radiator.
My previous posting listed this as the one I am using:
"7) Replaced original, or older design 4 row, with new high density, high performance radiator. Same thickness as original 3 row, and requires no mods of tanks. Modine H 69 H Cross flow. 18 1/2 W x 15 1/2 high. Four parallel rows of tubes, 36 tubes/row, each 3/8 inch deep by 0.080 wide externally. 14 fins/per inch fin density. This is about $300, built by radiator shop, and well worth it."
Hope this provides additional clarifications.
Steve
-- Steve Laifman B9472289

Subject: Re: RFC/Overheating Tiger (LONG & TIRESOME) Date: Mon, 10 May 1999 10:20:17 -0400 From: richards To: Richard F Flynn CC: "tigers@autox.team.net" References: 1

Tan fluid indicates oil in the cooling system. I would be suspect of a blown head gasket and/or cracked head. Run a pressure guage on the cooling system and see if you are getting super-heating from the cylinders. (pressures greater than 13-15 psi after warmup). If you truly have the tan glunky slime in your cooling system than you have oil getting into your cooling system.
Chris in Trinidad
Richard F Flynn wrote: > > Apologies to bring up what is no doubt a tiresome subject for some (a FAQ would > be helpful here - saw the start made in January - would be great to see it all > come > together!), but I am trying to cure my recently acquired Tiger of its hot > temperament. > I have surfed the list archives heavily, had some helpful advice from Mssr. S. > Laifman, and would now like to ask the list at large for any comment on my > proposed > course of treatment below. > > thanks in advance, > > rick & B9471206 > > Running Characteristics @ 70F ambient temps: > - 170F-180F @ 60MPH-70MPH > - 210F-220F @ 30MPH-40MPH > - 250F+ after 15 - 20 minutes of stop/go traffic city (London UK) or > just idling in the drive, where upon it gets finicky, stops running, > stalls, and looses tan(!) fluid from the overflow tube only > (the current specification of my Tiger is included at the bottom of this > message) > > Proposed course of treatment: > 1) Figure out what I have (see "Current Specification") and what exactly > is happening (see "Running Characteristics") > 2) Based on that information and that gleaned from the list folks, I am > planning on: > - establish accuracy of temperature gauge (though clearly there > is a problem) > - check radiator cap & thermostat (which is currently a mystery) > - having cooling system professionally flushed (the system was > drained & refilled 2 weeks ago, so the tan color is a bit > disconcerting, especially knowing it has been seldom used for > the past 3 years) > - install Gano filer on radiator > - replace 6-blade water pump fan with one of the fans identified > by the list, I suspect the Volvo will prove easier to locate > - replace unshrouded auxiliary electric fan with shrouded high > flow fan, probably the Scott Manufacturing fan discussed on > the list from time to time > - close gaps & holes around radiator > 3) Other possible modifications (no necessarily related to my problem) > - install electronic ignition (the Pertronics seems popular) > - possibly replace fuel pump (currently an unknown quantity) > > My Current Questions: > - Any comments, suggestions, things I overlooked or missed? > - Does anyone know of a source for the Volvo fans (does Volvo still make > them - parts yards are a bit scarce in central-London)? > - Anyone know a good radiator place in/near central London? > - It seems to me to be clearly a low speed problem, possibly compounded by > a semi-clogged cooling system. Is this a fair assesment of the situation > or am I missing the mark? > > Current Specification > - 1965 Tiger MKI B9471206 > w/289ci engine, transplanted at an unknown date from an unknown origin (in > Texas apparently): > - complete rebuild 2500 miles/3 years ago (yes, spent a fair > amount of time not being used) > - tested on rolling road 2 weeks ago, so timing, ignition, etc. > are fine > - no build up of grime/crud on engine > - no unusual objects restricting air flow through grill, etc. > > - air cleaner : standard > - carburetor : Carter > - manifold : Offenhauser 306 Dualport > - cam : mild, but "hotter-than-stock" > - heads/valves : standard > - pistons/crank/etc : standard > - ignition/distributor : standard > - fuel pump : standard > > - water pump : new, standard > - water pump fan : 6-blade flex fan (yellow blades pop > riveted to white star base, all fiberglass) > - fan belt : new > - radiator cap : 15lb > - thermostat : unknown > - radiator : unidentified high efficiency, unknown number of > cores with 3/8" spacing & 9 ribons/inch > - radiator hoses : new > - radiator shroud : standard & complete > - auxiliary fan : unshrouded 4-blade fan in front of radiator > - hood/bonnet : standard > rick

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29

---

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

---

	+ The Roots of Rootes   + History of the Tiger   + Tiger Model Overview   + Tiger Production   + People & Pioneers   + Workshop Manual   + Factory Race Equipment   + Literature: Books   + Articles & Videos   + Advertising   + See Rootes Resources		+ History of the Tiger   + Sunbeam Tiger 2005   + Early Race History   + Ken Miles, an appreciation   + The "Beastie" explained   + The Playboy Pink Tiger   + Casting a Light on Lucas   + LeMans at Goodwood 2002   + Monterey Historics 2003   + My Life With Cars   + See Articles & Humor		+ High Perf. Exhaust   + Tiger Dash Restoration   + 350 Lunati Tiger   + Installing a T5   + Sound Advice   + Installing New Carpet   + The Ackerman Angle   + "Cool It Buddy"   + 3 Point Belts   + Tiger Rotisserie Plans   + Tiger E-Mail List Archives   + See Technical Tips by Author		+ Tiger Club Information   + Events Calendar   + Service Directory   + Owner's Gallery   + Buyer's Guides   + Contributing Editors   + Team Tiger Updates   + Photo Gallery   + See Online Resources