B20 – Water Pump Removal Procedures

by Paul Burr in the April 1982 RootesReview: I recently changed the water pump in my Tiger and would like to share this information with you. At first glance, getting the thing out looked like a nasty job, but once underway, it went smoothly. First Steps First, drain the radiator into a suitable container by (more…)

B19 – Replacement Alpine Water Pump in Question

by Carl Moon in the October 2001 RootesReview: Alpines do not typically suffer from cooling problems at least to the degree that Tigers do. But, as I have found, it can become problematic even for these small 4 cylinders. When I rebuilt my 1725 engine I replaced the original water pump with a new aluminum (more…)

B18 – Tiger Cooling Study Responses

from the March 2001 Rootes Review: The cooling article in the last Rootes Review garnered lots of comments and questions. The following letter from Bill Holden is typical of many letters and comments received. Bill’s comments and questions are printed below along with Chuck King’s and Tiger Tom’s responses in italics. Be sure to check (more…)

B17 – Simplify Your Cooling Tests

by John Logan in the May 2001 RootesReview: The purpose of this paper is to describe a simple method to use in testing and analyzing vehicle cooling performance for those of you who want to improve your vehicle. Through the years, this procedure has been used to quickly analyze cooling problems in vehicles such as (more…)

B16 – Air Dam for the Tiger

by Larry Paulick in the June 2002 RootesReview: The Tiger has an inherent problem in the cooling system design. The bottom of the fan shroud does not complete the 360 degree shroud. If it did, the shroud would interfere with the rack and pinion. There are also no seals around the other parts of the (more…)

B15 – Tiger Cooling Revisited

by Dave Spiwak (June 1994) in the January 2002 RootesReview: Having spent fifteen summers in a black MkI Tiger running at 210 degrees, I finally decided that a rolling sauna was not my idea of a sports car. Here are some thoughts on reducing engine heat. My car now runs at 185 degrees. For the (more…)

B14 – Free Cooling

This is in regards to closing the air horn openings in our Tigers. It seems that is one more step in cooling. Our good friend Tiger Tom relates this to making all the incoming air go through the radiator instead of creating positive pressure in the compartment. This may have already been done, but wanting (more…)

B13 – Tiger Cooling Hint

from the May 1995 RootesReview “Slow the coolant through the engine and expect the efficiency to improve” … So is the theory. Previous tech tips from other Clubs outline what can be done to water pumps to achieve the desired result. My tip comes from the Graham Bros. Rad shop in Toronto that I recently (more…)

Cooling the Sunbeam Tigerby Tiger Tom and Chuck King

Since our Tigers were produced in the mid-60’s, one of the things that has continued to be considered a problem has been the cooling system; in particular overheating after extended periods of idling on hot days. Some owners have been successful at cooling their Tigers and some are still trying to keep their Tigers cool. Solutions have been offered that have generally been based on empirical evidence. This is the first fact- and data-based findings published regarding effective cooling solutions for the Tiger and some fan airflow information for Alpines. Our findings are also applicable and maybe of interest to other owners with similar engine cooling configurations with overheating problems. Read the rest

B1 – Heating Solution No. 999

The original Heating Solution No. 999 published in 1980, and No. 999 revisited in 1981, 1983 and 1984, have assisted dozens of Tiger owners in the U.S. and Canada resolve their overheating problems. Here is the latest information on what some call the “INDIANA CORE.” Increased cooling with the “INDIANA CORE” is provided by the (more…)