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Valve Clearances
#1
I was called by a neighbour yesterday who was checking his valve clearances prior to timing belt etc change and had a surprise at the results.
Vehicle had covered 100 k miles.

Every exhaust valve clearance was pretty much spot on at 0.30 mm

Every inlet valve was too tight at 0.038 mm against the required 0.15 mm
( 1.5 thou instead of 6 thou )

I have to say I was surprised at the results and double checked the cam position and the feeler gauges, my neighbour was also surprised hence his asking for a second opinion.......

Naturally all will be rectified but I just thought I'd share the story.
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#2
I have found that between @ 140k &180k that they close up sufficiently for the engine not to start from cold, makes a huge difference once they are correct again.
My C15 DW8 engine, is ready for its second adjustment at 265000 miles, as the starting issue is becoming noticeable .
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#3
(14-03-2014, 09:27 AM)Lighty Wrote:  I have found that between @ 140k &180k that they close up sufficiently for the engine not to start from cold, makes a huge difference once they are correct again.
My C15 DW8 engine, is ready for its second adjustment at 265000 miles, as the starting issue is becoming noticeable .

Are you the lighty from the c15 forum?

Reading this http://visaforum.freeforums.org/c15-fuel...-t935.html was what persuaded to finally de-EGR my van, and knowing that people had just ripped the flap out the EGR made life much easier. I love a bit of brute force. Wink

MOT passed with no problems, so thanks to you and the other contributors. I never bothered joining just to post asking for pics and to say thanks Smile
2004 1.9D Multispace/Budget crew cab work van!
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#4
(14-03-2014, 05:18 PM)chronyx Wrote:  
(14-03-2014, 09:27 AM)Lighty Wrote:  I have found that between @ 140k &180k that they close up sufficiently for the engine not to start from cold, makes a huge difference once they are correct again.
My C15 DW8 engine, is ready for its second adjustment at 265000 miles, as the starting issue is becoming noticeable .

Are you the lighty from the c15

The very same Confusedalut:
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#5
(14-03-2014, 08:47 AM)geoff Wrote:  Every inlet valve was too tight at 0.038 mm against the required 0.15 mm
( 1.5 thou instead of 6 thou )

Speaking of EGR's, who wants to bet that bloody thing is responsible for wearing the inlet valves while the exhaust valves remain spot on? Rolleyes
2004 1.9D Multispace/Budget crew cab work van!
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#6
EGR's ... quite possibly as valve recession is more usually associated with exhaust valves.
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#7
Is true in my opinion. A friend of mine has a dw8 partner 04 reg... EGR disabled from new and crankcase breather vented to fresh air instead of back into the manifold, this means no sticky gunk in no's 1 and 2 cylinders either. Has remained within tolerances and has done 156000 miles now. EGR is a short term solution causing long term engine damage Sad
Adam..2003..1.9D..LX..Silver Crew Cab Van.....
If at first you don't succeed, destroy all evidence that you tried.
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