temp control again :: Triumph Torque

Moordale Motors

Welcome, Guest.
Please login or register.
temp control again
Forum Login
Login Name: Create a new account
Password:     Forgot password

Triumph Torque    Chit Chat Boards    Technical Chit-Chat  ›  temp control again
Users Browsing Forum
No Members and 15 Guests

temp control again Print
2 Pages 1 2 » All Recommend Thread
dazzer
November 27, 2017, 10:29am Report to Moderator


Posts: 1,212
Posts Per Day: 0.38
Previously had overcooling problems with the early 2000 mk1 lump on the early 2000 ventilation system. On this re-incarnation. with a complete body rebuild I've utilised the slightly later system. Massive improvement on air flow and distribution. Which when idling on the spot and the temp gauge reading just above normal (just over halfway with the electric fan cutting in and out 90 degree switch) the heating is lovely.

Unfortunately, once again, on the move the engine cools to just quarter on the gauge and the heating is just luke warm. This is once again the radiator and possibly the upgraded water pump being too efficient. its the same with an 82 or 88 thermostat. The manual fan is removed and I've now disconnected the auto fan switch and just use a manual switch which is only ever used stationary for extended periods.

Great for warm weather but pants in cold weather. My next thoughts is to fit an alloy radiator to save weight and maybe it will be less efficient. than the copper. The old upgraded square top is now approx 12 years old. Or fit one of the old fashioned manual shrouds.

Do the engines cool more on the standard set up when on the move?

Cheers
Dazzer



1965 2000 MK1 Rally project, HRCR rally championship, Hexham, 12 car night rallies, trials, autotests etc, etc.

1958 DKW 3-6 Coupe. Two stroke German rally contender, screaming demon! Where modern Audi originated from.

Logged
Private Message
glang
November 27, 2017, 11:09am Report to Moderator

Posts: 621
Posts Per Day: 0.62
Surely the first (cheapest) option is to put a standard pump back in and see how it behaves then....
Logged
Private Message Reply: 1 - 24
dazzer
November 27, 2017, 12:10pm Report to Moderator


Posts: 1,212
Posts Per Day: 0.38
Like your thinking glang.

Standard pump on order.

Cheers
dazzer


1965 2000 MK1 Rally project, HRCR rally championship, Hexham, 12 car night rallies, trials, autotests etc, etc.

1958 DKW 3-6 Coupe. Two stroke German rally contender, screaming demon! Where modern Audi originated from.

Logged
Private Message Reply: 2 - 24
glang
November 27, 2017, 1:49pm Report to Moderator

Posts: 621
Posts Per Day: 0.62
Let us know how you get on cos I might be interested in an uprated pump
Logged
Private Message Reply: 3 - 24
iggy
November 27, 2017, 6:38pm Report to Moderator
Club Member
Posts: 427
Posts Per Day: 0.23
mines a mk2 2500 temperature always stays around mid way on the gauge cant rememder what thermostat is fitted but its got the original viscous fan fitted


1972 Mk2 2.5 PI on carbs
2005 Fiat Stilo jtd                                              
Logged
Private Message Reply: 4 - 24
Spitfire6
November 27, 2017, 6:53pm Report to Moderator


Posts: 1,136
Posts Per Day: 0.36
Hi,
The thermostat controls the engine temperature.
The fastest water pump and largest radiator in the world should not cause your engine to run too cool.
Are you sure nothing is bypassing the thermostat apart from the heater return that should be going back to the suction side of the water pump anyhow?

When your gauge and heating in car is low; you are saying that the radiator is cold as well?

Cheers,
Iain.


Me in Burnley, GB
Spitfire 6 EFI Alpha N (Emerald K3 ECU). Big fat 215/40/16's on the backside. (They fit and minimal camber change). Custom cooling system with 20% EG for winter with 2% corrosion inhibitor. LED's all round. NT 5W40 Oil. 3.27 diff with a LSD by Quaife. TR6 Transmission + J Type.

PUG 206CC 2L twin-Cam. NT 5W40 Oil
Automation and control systems engineer.
RIP Step-7 Classic. Long live Portal V14
IEEE Member
G6SBH
Yaesu FT 102 with all the extra's.

http://www.SpitFire6.UK               Main site- work in progress

Logged
Site Private Message Skype Reply: 5 - 24
thescrapman
November 27, 2017, 8:53pm Report to Moderator

Colin Wake
Club Member
Club member
Posts: 10,274
Posts Per Day: 2.29
Did you put all new foamy seals in the heater box?

I had the cold outside air pushing past knackered seals cooling the air too much in the cabin.


Schadenfreude expert and collector of assorted rusty Triumphs on the Essex/Suffolk Border.

2010, 2011, 2013, 2015 and 2016 CT Navigators Championship winner.

10CR 2005, 2007, 2009, 2011 2013 - RBRR 1990, 2006, 2008, 2010, 2012, 2014, 2016 - Nachtrit 2006, 2007, 2008, 2009, 2012 - Chinese rally 2007, 2008, 2009, 2010, 2011 - HCR 2009, 2011, 2012, 2013 (3rd place), 2014. 2015, 2017

On the road.
1968 Spitfire Mk3 : 1973 TR6 : 1967 Herald 1200 Estate 1970 : 1968 Mk1 2.5PI 1968
Off the road
1967 Moss Monaco (Mk1 GT6 based) : 1970 Spitfire Mk4 : 1970 Mk2 2000 auto  : 1964 Mk1 2000  : Mk2 2.5PI
Logged
Private Message Reply: 6 - 24
TedTaylor
November 27, 2017, 9:58pm Report to Moderator

Club Member
Posts: 2,691
Posts Per Day: 0.93
Is your thermostat opening correctly (at the correct temperature) ........ or even stuck open/part open!

If your thermostat does not open at the correct temperature (i.e. early) it can mean the engine can never (or with difficulty) achieve its correct operating temperature.

MUT


Mad Uncle Ted!
Growing old is inevitable but growing up is optional.

AFH849B Mk1 2000 period rally replica (under restoration ..... again) First re-built 1991
NAM616G Morris 1800 London Sydney/Monte/World Cup (awaiting restoration)
SCG115G Mk1 PI estate
WDE 76K Mk2 2500 estate (Woodie) RBRR 2014   2016  
LSE Soft Dash Range Rover with Brooklands body kit on LPG (Still for sale)

From the depths of the Forest of Dean....
Logged
Private Message Reply: 7 - 24
dazzer
November 28, 2017, 6:14am Report to Moderator


Posts: 1,212
Posts Per Day: 0.38
Hi Guys
Thermostat is correct and checked and I've substituted it. There is no extra by pass the water system is standard apart from the updated pump and HD Rad. Yes did put the foam kit in and the heater is great when the engine up to temp stationary.

You've given me another idea though. I'll try restricting or blanking the by pass where it comes out of the thermostat housing. Used to do this on TR4s but that was to get all coolant running through the rad. It may make things worse. I'll give it an experiment.

Cheers
Darren


1965 2000 MK1 Rally project, HRCR rally championship, Hexham, 12 car night rallies, trials, autotests etc, etc.

1958 DKW 3-6 Coupe. Two stroke German rally contender, screaming demon! Where modern Audi originated from.

Logged
Private Message Reply: 8 - 24
glang
November 28, 2017, 2:09pm Report to Moderator

Posts: 621
Posts Per Day: 0.62
Quoted from Spitfire6
Hi,
The thermostat controls the engine temperature.
The fastest water pump and largest radiator in the world should not cause your engine to run too cool.
Are you sure nothing is bypassing the thermostat apart from the heater return that should be going back to the suction side of the water pump anyhow?

When your gauge and heating in car is low; you are saying that the radiator is cold as well?

Cheers,
Iain.

I think an uprated pump could change the running temperature of the engine because for any given opening of the thermostat (as determined by the coolant temperature) youre now forcing more flow through. Then if the radiator is capable of cooling that flow down sufficiently to maintain the engine temperature theres no reason for the thermostat to close more so you have a stable system operating at a lower temperature.    
Logged
Private Message Reply: 9 - 24
RobPearce
November 28, 2017, 4:59pm Report to Moderator

Club Member
Posts: 1,766
Posts Per Day: 1.45
That logic assumes quite a shallow slope of response for the thermostat. I think the increase in pressure across the stat for a higher pump flow is small, too. I'm not saying the bigger pump will make no difference, I just don't think it's likely to be as noticeable as Darren reports.


Current fleet
1967 Vitesse 2L conv "Tessa"
1970 Spitfire Mk3 (project) "Toby"
1972 GT6 Mk3
Not enough time or space
Recently sold:
1972 2.5 PI estate "Harry" (gone to russell on here)
1973 Toledo 2-door "Spike" (gone to a club official)
Used to have:
1968 Vitesse 2L saloon
1980 Dolomite 1500
1977 Dolomite 1850
1980 Dolomite Sprint
1982 TR7 DHC Sprint
1975 2500S saloon
1971 Herald 13/60 Estate (with 1500 Spit engine)
1975 Stag
Logged Online
Private Message Reply: 10 - 24
glang
November 28, 2017, 5:30pm Report to Moderator

Posts: 621
Posts Per Day: 0.62
Yes the new pump would have to be quite an improvement over the original but then that wouldnt be too difficult looking at the 19th century item we have installed as standard in our engines. Some articles on line do actually comment on the risk of a less efficient cooling system at full load cos the coolant doesnt spend long enough in the rad - be interesting to hear when Darren installs the standard pump......
Logged
Private Message Reply: 11 - 24
Spitfire6
November 28, 2017, 7:51pm Report to Moderator


Posts: 1,136
Posts Per Day: 0.36
Hi Glang,
The " coolant doesn't spend long enough in the rad" is a myth. Sorry,

I am interested in the high flow water pump though as I want to change back to mechanical from electric.

Cheers,
Iain.


Me in Burnley, GB
Spitfire 6 EFI Alpha N (Emerald K3 ECU). Big fat 215/40/16's on the backside. (They fit and minimal camber change). Custom cooling system with 20% EG for winter with 2% corrosion inhibitor. LED's all round. NT 5W40 Oil. 3.27 diff with a LSD by Quaife. TR6 Transmission + J Type.

PUG 206CC 2L twin-Cam. NT 5W40 Oil
Automation and control systems engineer.
RIP Step-7 Classic. Long live Portal V14
IEEE Member
G6SBH
Yaesu FT 102 with all the extra's.

http://www.SpitFire6.UK               Main site- work in progress

Logged
Site Private Message Skype Reply: 12 - 24
glang
November 28, 2017, 8:27pm Report to Moderator

Posts: 621
Posts Per Day: 0.62
Why do you say that Iain? And what was the problem with using an electric pump?
Logged
Private Message Reply: 13 - 24
Davemate
November 28, 2017, 8:33pm Report to Moderator


Posts: 3,491
Posts Per Day: 1.17
Dazzer
I’ve had my heater bypassed due to a weeping heater matrix and my temp gauge has been sitting just over half or a tad higher way on my home from work if stuck in traffic . I’m running standard pump,rad and at the moment a 77 thermostat. On the odd occasion I’ve had to click on the electric fan just to lower the temp a tad.
Today I thought sod the leak I’m bloody cold so I reconnected the heater
On my home tonight I sat in loads of traffic and it took me an extra 40 mins to get home and that was all stop start traffic. I had full screen,full heat and the blower on (mk1 2000)
The temp gauge sat bang on normal so just having the heater blower kept the temperature down,as soon as I got moving after the road works the gauge dropped to under normal and the heater was definitely cooler within a few hundred yards
So :- as in the same situation during the summer I fitted a electric fan but only with an manual switch which I had to have on as well as the heater blower to keep the temp gauge at about 3/4 when sat in similar traffic, so my thinking is,it’s bloody freezing out at the moment so any air flowing through the engine bay will cool it rather quickly.

I’m thinking about restricting the air flow through the front grill with some sort of screen,probably cardboard to see if it works and then something better if it works

Ps
In the mornings on my way to work at 05:30 during my non stop run of 3.5 miles my temp gauge just about gets to 1/4 or just under and the heater blows cold or luke warm if I’m lucky or unlucky as it just fogs the screen up


Herald 1500,rallyfied- overdrive,swing spring with 1500 spit diff,440lb front springs, adjustable height spax on front and back, trunionless conversion,thicker arb,rear roll cage,harnesses,bucket seats,extra gauges,Vitesse steering wheel,genuine 5.5j smoothies wheels,4 branch manifold
Still for sale

Mk1 2000 saloon,now a 2.5   

Timing marshal CT autosolo Bovington 2011,2012,half of 2013,2014 and 2016
Marshalled Essex winter rally 2013
RBRR 2012, co driver
24th Nachtrit 2012, navigator
Chinese rally 2013, navigator
Essex winter rally 2014, navigator
HCR 2014, co driver
RBRR 2014, co driver
Essex winter rally 2014,navigator
Warwickshire winter rally 2016,driver
HCR 2016 driver
Essex winter rally 2016 navigator
Mr Radders official calm down buddy
Logged
Private Message Reply: 14 - 24
2 Pages 1 2 » All Recommend Thread
Print

Triumph Torque    Chit Chat Boards    Technical Chit-Chat  ›  temp control again

Thread Rating
There is currently no rating for this thread
 


Powered by E-Blah Forum Software 10.3.5 © 2001-2008

Latest Blogs-
Steve Weblin

16th December 2017 07:30am gmt
Loxhams - Triumph Car Dealers 54
Rob Pearce

15th December 2017 10:31pm gmt
They Think The Welding's All Over...
more blogs...
Next Group Meetings-
North London & Herts Monday 18th December 20:00
Glasgow Tuesday 19th December 20:00
Shropshire Wednesday 20th December 19:00
West Midlands - 2nd meeting Wednesday 20th December 20:00
Southern Area 2nd meeting Thursday 21st December 20:00
more local groups...
Upcoming Events-
more events...
For Sale-
Spitfire MKIV cylinder head, refurbed not used. Casting 312240, Stamp number 218142. Unleaded inserts, seats triple cut, new valves, guides and springs. Skimmed 0.040 inch. £300. Mob. 07764 860234 email: steve-karen.dee@ hotmail.co.uk
Pair of Stromberg CD 175 carburettors, linkage and mounting nuts. Removed from an American-spec TR6. Looking for £35. Based in Peterborough. Matt George on the forum or phone 07921 853482.
project colander aka 1973 1500tc dolomite - needs lots of welding but is largely complete though partly dismantled . contact dinger on the forum
more adverts...
CLUB TRIUMPH the Club for all Triumphs
© Club Triumph Ltd MCMXCVI - MMXV