A2 TDi 75 160k miles, smokey on cold start. Is it normal?

philward

Member
How about the glowplug holes = or is the scope too large

Cheers Spike
Yes all of the scopes I have seen have a 6.5mm head. Forgot to measure the end of my plug today but I'm sure it is smaller than 6.5mm.

Edit, taken a look at KP 115's picture above, perhaps they are larger than 6.5mm. Any body got one they could measure?
 
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philward

Member
Have you a link to the tightening sequence? The smoking is now gone and she’s running loads better with the new wiring harness and glow plugs
Torque 10Nm

A2.jpg
 

Howey

Member
Have you a link to the tightening sequence? The smoking is now gone and she’s running loads better with the new wiring harness and glow plugs
Superb!
Did you fit a new harness? How much are they these days?
 

kp 115

Member
Yes all of the scopes I have seen have a 6.5mm head. Forgot to measure the end of my plug today but I'm sure it is smaller than 6.5mm.

Edit, taken a look at KP 115's picture above, perhaps they are larger than 6.5mm. Any body got one they could measure?
Hi Phill,
I Can dig an old one out tomorrow evening if that helps, it might even be still in the boot will check when I get to work.
Cheers
Keith
 

kp 115

Member
Hi Phill,
I Can dig an old one out tomorrow evening if that helps, it might even be still in the boot will check when I get to work.
Cheers
Keith
Core diameter of thread is 8mm but I’m not sure that the hole where the tip protrudes through into the combustion chamber is that size, I’ll check my photos from when I had my head off to overhaul valve etc.
208A15FB-1264-4443-91A0-0C000EC98D8C.jpeg

The tip of Bosch Glowplugs is 4.5 mm dia
Shaft of parallel section of tip is 5.0mm dia so from that & looking at the photographs I would estimate 5.5mm - 6.0 mm for the aperture in the head for the camera to go in through.
Something like this may well fit!
DEPSTECH Endoscope Inspection Camera, Upgraded 5.5mm Ultra-Thin USB Inspection Camera Semi-Rigid Waterproof IP67 Snake Camera Borescope with 6 Adjustable LED Lights and USB Adpater-16.5ft https://www.amazon.co.uk/dp/B0897B9...abc_H15YNKX75144Z6EYKX9J?_encoding=UTF8&psc=1


Hth
Keith.
2CC77B48-11EB-458A-B6EF-69652983DE98.jpeg
 
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Louisp

Member
Right the garage gave me the car back with just the gasket changed and it’s been leaking oil everywhere since. Just changed the rocker cover now with a new one and hopefully all will be well. Thanks to Depronman for advice on moving the egr so I could get to one bolt to make the change!!
 

kp 115

Member
Yes all of the scopes I have seen have a 6.5mm head. Forgot to measure the end of my plug today but I'm sure it is smaller than 6.5mm.

Edit, taken a look at KP 115's picture above, perhaps they are larger than 6.5mm. Any body got one they could measure?
Hi Phil,
Just wondered wether you had got any further on your quest?
Cheers
Keith.
 

philward

Member
Hi Phil,
Just wondered wether you had got any further on your quest?
Cheers
Keith.
No I report back when I conclude something. The car is running fine, the new glow plugs haven't melted so I have other things to tackle.
I will get a look inside the cylinder though and when I do I will report my findings.
 
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