[TR] Water pumps.

[rbtr3a at cox.net]

Well I struggled with the decision as to which to buy. Stock had served me well over the years, although there were a few days during summer months while sitting at a long red light I could witness the needle rise. 

Having said that I thought I would spend a few bucks more and purchase the five vane pump. Hopefully I can report back any differences I may discover.  My system is completely stock and I do have the original radiator which I had been boiled and cleaned it also includes the hand crank access hole.

Stand by for future report  

Ronnie

> On May 10, 2017, at 12:04 AM, Paul Tegler <ptegler at verizon.net> wrote:
> 
> moving water too fast through a cooling system can be just as bad as not moving it fast enough
> (no time to xfr the heat)
> always a good bet to up the cooling capacity (fans etc)
> 
> Paul Tegler ptegler at verizon.net www.teglerizer.com
>> On 5/9/2017 9:08 PM, Michael Porter wrote:
>>> On 5/9/2017 4:52 PM, TERRY SMITH wrote:
>>> 
>>> Just curious.  Is this an engine that sits a lot, with a long time since last disassembly and boiling?  Wouldn't engines with corrosion in the water channels may need additional coaxing to cool enough?
>>> 
>>> 
>> Corrosion is an interesting question.  In a cast-iron engine, it's desirable.  Little-known fact:  the highest rate of heat exchange of known metals is off rusty cast-iron.  That likely has something to do with the large amount of surface area created by rust. Where corrosion becomes a problem is when microscopic flakes break off and combine with used-up anti-corrosion precipitates from the coolant. This forms an insulating sludge that can cause hot spots and nucleate boiling if the system pressure isn't high enough. Probably everyone tearing down a Triumph engine with lots of mileage has encountered the stuff behind the rearmost cylinder, where flow isn't high enough to keep the particulates from settling out.
>> 
>> In short, rust is okay.  The by-products of that corrosion are not.
>> 
>> 
>> Cheers.
>> 
> 
> 
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