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Oil Temperature Gauge Print
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Dannyb
October 4, 2017, 9:01pm Report to Moderator

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I have fitted a new Lucas Oil temperature gauge to my Spit 1500.
Problem is it does not register above 50 deg. I first has the sender unit fitted to the sump and now have it fitted to the side of the engine where the pressure  sender is fitted. I know it works as I have connected it to the water temperature sender and it registers a reading.
The oil must be getting hotter than 50 deg and the sender came with the gauge.
Any ideas ?


Danny Baker
Langdon Hills, Essex.
RBRR Finisher 2012  2014  2016
My first car in 1970 was a 1965 Spitfire4 with 8 port head stage 2 conversion
Now drive 1980 Spitfire 1500
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piman
October 5, 2017, 6:02am Report to Moderator


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Hello Danny,

no, not necessarily, oil doesn't heat up as quickly as the water in the engine, and your readings sound quite realistic.

Alec


Oswestry, Shropshire.

Mk1 1\2 P.I.,Jaguar Mk 2, very long term restoration. Jaguar X Type estate 2.5, Hymer 564 motorhome.
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JohnD
October 5, 2017, 8:31am Report to Moderator


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Can you remove the sender, and keep the oil in?

Set up a pan of water on a camp stove, or improvise.   Propane torches are often designed to be laid on their side while working.
Arrange to measure the water temp and put your sender on a long lead, so you can put it in the pan.
Heat the water while measuring its temp and observing the guage reading.
You have now calibrated your sender/guage, and confirmed - or proved faulty - it's functioning.

John


Serial Vitesse racer.

Old Blue.  1995-2001
Silverback. 2001-2007
SofS. 2007 - to date.

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Velocita Rosso
October 5, 2017, 10:07am Report to Moderator

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Off topic......Alec , sent you two PM`s
Mike


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Dannyb
October 5, 2017, 3:18pm Report to Moderator

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Ok I have tested the sender unit in with hot water which was measured as 70 C.  and the gauge was about right.
so how long do you have to drive before oil gets to operating temperature
Does it matter on the grade of oil. mine is 20w60


Danny Baker
Langdon Hills, Essex.
RBRR Finisher 2012  2014  2016
My first car in 1970 was a 1965 Spitfire4 with 8 port head stage 2 conversion
Now drive 1980 Spitfire 1500
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RobPearce
October 5, 2017, 3:53pm Report to Moderator

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It depends a lot on the driving conditions but at least twice as long as the coolant. Remember, the hot bits of the engine are all in the top, where the coolant is, but the oil is all in the bottom - only a carefully limited amount dribbles through the rocker gear. It takes especially long if you have a cooler without a stat...


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
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andy thompson
October 5, 2017, 8:54pm Report to Moderator

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At least 10 miles to see 75-80 deg on my 2000, no oil cooler - more on a cool day


Andy Thompson, Perth WA So many cars so little time

1965 Mk1 2000 2.7PI - broken engine   awaiting steel crank and block prep
1969 TR6 PI Signal Red
1970 Mk2 2.5PI Estate Wedgewood
1972 Stag - engine build in progress
1973 Mk2 2100 EFI Howling mad Daily Driver.
2002 Land Rover Disco TD5��- rattle , rattle, sip, sip��

http://triumphwestoz.blogspot.com
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Nick Jones
October 5, 2017, 9:53pm Report to Moderator

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Oil temperature rate of rise is fairly revs dependent - the more revs, the more heat so if just pottering about it'll never get very hot.  In my experience, 1500s are usually pretty good at getting their oil hot but I'd not argue with Andy's figures.

Nick


Nick Jones
Somerset UK

Vitesse Mk 1.5 Convertible EFI, Survivor of RBRR 2008, HCR & 10CR 2009, HCR 2010, 10CR2011, HCR 2012, 10CR2013, 10CR2015, HCR 2016 & HCR 2017.
GT6 Mk3 Roto - project in progress
Spitfire MKIV son's project now on the road as a daily driver
2.5 PI Saloon now EFI (PIe?), Engine rebuilt and running sweet.  Diff howling...... Survivor of HCR 2013 & 2014 Gone to live in Swansea

http://www.tengaston.plus.com
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Dannyb
October 6, 2017, 1:00pm Report to Moderator

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Took the Spit to work this morning. 40 miles around the M25 between 60 and 80   and the oil never moved above 50C


Danny Baker
Langdon Hills, Essex.
RBRR Finisher 2012  2014  2016
My first car in 1970 was a 1965 Spitfire4 with 8 port head stage 2 conversion
Now drive 1980 Spitfire 1500
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JohnD
October 6, 2017, 2:30pm Report to Moderator


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Quoted from Dannyb
Took the Spit to work this morning. 40 miles around the M25 between 60 and 80   and the oil never moved above 50C


Do you have a thermostat on the oil cooler circuit?     50C is too cold, oil not working well.
John


Serial Vitesse racer.

Old Blue.  1995-2001
Silverback. 2001-2007
SofS. 2007 - to date.

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Dannyb
October 6, 2017, 4:53pm Report to Moderator

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I do have an oil cooler and it does have a thermostat.   Maybe I should block the radiator see if it improves as I would not know how to test it.


Danny Baker
Langdon Hills, Essex.
RBRR Finisher 2012  2014  2016
My first car in 1970 was a 1965 Spitfire4 with 8 port head stage 2 conversion
Now drive 1980 Spitfire 1500
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JohnD
October 6, 2017, 8:24pm Report to Moderator


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Try "temp-tabs", one-time use adhesive stickers that show the highest temp reached. If the hoses between t'stat and cooler never heat up the 'stat is seized closed.  If they warm up after a short, 5 min drive, it's seized open.
John


Serial Vitesse racer.

Old Blue.  1995-2001
Silverback. 2001-2007
SofS. 2007 - to date.

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Dannyb
October 6, 2017, 9:17pm Report to Moderator

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Thanks JohnD, I'll give it a go.


Danny Baker
Langdon Hills, Essex.
RBRR Finisher 2012  2014  2016
My first car in 1970 was a 1965 Spitfire4 with 8 port head stage 2 conversion
Now drive 1980 Spitfire 1500
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Nick Jones
October 6, 2017, 10:38pm Report to Moderator

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With a 50ºC max oil temperature on a 1500 the oil-'stat is either seized open or opening way early.

The one I had on my Herald 1500 (90ºC opening IIRC) used to take about 15 fairly fast miles.  When I went back to 1300 (small crank) it hardly ever opened and I eventually took it off.

Nick


Nick Jones
Somerset UK

Vitesse Mk 1.5 Convertible EFI, Survivor of RBRR 2008, HCR & 10CR 2009, HCR 2010, 10CR2011, HCR 2012, 10CR2013, 10CR2015, HCR 2016 & HCR 2017.
GT6 Mk3 Roto - project in progress
Spitfire MKIV son's project now on the road as a daily driver
2.5 PI Saloon now EFI (PIe?), Engine rebuilt and running sweet.  Diff howling...... Survivor of HCR 2013 & 2014 Gone to live in Swansea

http://www.tengaston.plus.com
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cliftyhanger
October 7, 2017, 5:40am Report to Moderator

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You could try removing the cooler, or at least bypassing it (loop one hose to join the 2 take-off plate connections) see how that affects temp. But I think Nick could be right about the thermostat, as you have already checked the calibration.


Clive Senior

Location-Brighton, East Sussex
Foxy is here, 1500od tax exempt Toledo. Now has the decent engine back in Slant 4 engine bolted in, sprint box and axle.Now has fresh MoT. Needs paint though.
Spitfire Zetec project is started work progressing slooooowly on the road!
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Spitfire6
October 7, 2017, 10:54am Report to Moderator


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Hi,
From a different post.
Cheers,
Iain.



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Me in Burnley, GB
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PUG 206CC 2L twin-Cam. NT 5W40 Oil
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Dannyb
October 7, 2017, 1:29pm Report to Moderator

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I think you are right because when stuck in traffic for awhile on my way home on the M25 which is normal on a Friday night.
The oil temp started to climb a little and then when I Started to move along 40+mph it went back down.
I'm now thinking , do I need an oil cooler at all.  The hardest drive I do it the RBRR.


Danny Baker
Langdon Hills, Essex.
RBRR Finisher 2012  2014  2016
My first car in 1970 was a 1965 Spitfire4 with 8 port head stage 2 conversion
Now drive 1980 Spitfire 1500
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cliftyhanger
October 7, 2017, 1:45pm Report to Moderator

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Now you have a gauge, try it without a cooler and get some readings.

Service kits for the thermostats are available for about £12 (bottom of page)
https://www.merlinmotorsport.co.uk/s/oil-system/oil-thermostats


Clive Senior

Location-Brighton, East Sussex
Foxy is here, 1500od tax exempt Toledo. Now has the decent engine back in Slant 4 engine bolted in, sprint box and axle.Now has fresh MoT. Needs paint though.
Spitfire Zetec project is started work progressing slooooowly on the road!
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Dannyb
October 7, 2017, 1:58pm Report to Moderator

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Thanks Clive


Danny Baker
Langdon Hills, Essex.
RBRR Finisher 2012  2014  2016
My first car in 1970 was a 1965 Spitfire4 with 8 port head stage 2 conversion
Now drive 1980 Spitfire 1500
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Dannyb
October 28, 2017, 1:05pm Report to Moderator

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Update.
Checked oil cooler thermostat in hot water and it operates OK. closes when the water is cooled.
I have since added a sandwich plate that now take the oil pressure and oil temperature senders. This is fitted on top of the oil cooler sandwich plate.
I'm now getting the correct temperature readings.
I have read a few threads on this and other forums that say the sender should have oil running across it rather than in a blind hole of an adapter on the block.


Danny Baker
Langdon Hills, Essex.
RBRR Finisher 2012  2014  2016
My first car in 1970 was a 1965 Spitfire4 with 8 port head stage 2 conversion
Now drive 1980 Spitfire 1500
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Chasj
November 10, 2017, 5:56pm Report to Moderator

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Hi. Not on a "proper"car but my Skoda has both water temperature gauge and, via the computer, oil temperature.

The water soon gets up to 90 and stays there however driven. I always bring up the oil temperature read out, not pulling too many revs until the oil heats up. Running temperature being 95/98 and can take 10 miles to get there. Always careful not to rev. too much until oil hot for the sake of the turbo.

On a classic I have always driven on the oil pressure gauge when starting off, keeping revs down until oil pressure doesn't go too high, ie,until it reaches running temperature. Not a believer in loosing oil pressure too much above standard.

In the late 60s to 80s use to run and race Morgans with both crossflow and Lotus twin cam engines. Instead of fitting a high pressure oil pump I used a high capacity pump but I swopped to a standard spring, result 45psi at all times, also with some 40% more flow available didn't need an oil cooler. However did run a slightly larger sump and larger spin off oil filter, prior to which, using a paper/felt filter a Wooler aluminium ribbed casing.
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