 | Home > Puma (Tdci) > temp gauge needle... |
 
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| Lorryman100 Member Since: 01 Oct 2010 Location: Here Posts: 2686  |
My first port of call would be the CHT sensor. If available plug in a diagnostic tool and check the CHT reading on the live data page to see if it corresponds with the temp needle movements. If that is not the cause then you can move onto the next possible issue.
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11th Nov 2013 7:18pm |
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| bell-auto-services Member Since: 08 Jul 2007 Location: North Yorkshire Posts: 2232  
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Does the rev counter fall at the same time as the temp guage ? After the temp guage has fallen does it jump back up or does it move up slowly ?
Pete |
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11th Nov 2013 7:22pm |
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| Grockle Member Since: 24 Nov 2008 Location: Peak District National Park Posts: 2266 
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Hi Pete and Lorryman,
No just the temp gauge, someone mentioned the sender unit in the block could have developed a fault, as eng temp rises the gauge goes up slowly then falls rapidly then sometimes to rise again then fall. 2.4 90 XS 1968 1/32 scale Britains 109 Pick up. |
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12th Nov 2013 8:54am |
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| Lorryman100 Member Since: 01 Oct 2010 Location: Here Posts: 2686 |
Grockle unplug the CHT (Cylinder Head Temperature) sensor plug and clean the plug contacts with electrical contact cleaner to see if that rectifies the fault. If not then it is an easy enough job to swap out the CHT with a new one.
 Click image to enlarge Click image to enlarge Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated  |
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12th Nov 2013 4:55pm |
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| Grockle Member Since: 24 Nov 2008 Location: Peak District National Park Posts: 2266
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Cheers LM is it easy to remove the plastic rockerbox cover ? 2.4 90 XS
1968 1/32 scale Britains 109 Pick up. |
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12th Nov 2013 5:57pm |
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| Lorryman100 Member Since: 01 Oct 2010 Location: Here Posts: 2686 |
Yes it is only 2 x M6 bolts at the front of the block. You may need to wiggle it a bit around the injector pipes.
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12th Nov 2013 7:03pm |
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| Grockle Member Since: 24 Nov 2008 Location: Peak District National Park Posts: 2266
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thanks again LM for your help
2.4 90 XS
1968 1/32 scale Britains 109 Pick up. |
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13th Nov 2013 8:58am |
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| Grockle Member Since: 24 Nov 2008 Location: Peak District National Park Posts: 2266
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all sorted, had a look but it was freezing, so took it to the local garage in Hartington, all in £29.00
2.4 90 XS
1968 1/32 scale Britains 109 Pick up. |
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16th Nov 2013 5:09pm |
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| Lorryman100 Member Since: 01 Oct 2010 Location: Here Posts: 2686 |
Grockle, what caused the fault?
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16th Nov 2013 6:13pm |
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