Emissions query - overdue mot!

[what2do]

I've fallen a long way behind schedule and find myself without an mot - naughty boy! Anyway, before sub,it ting the van for its test I go for a good run in order to warm it up in the hope that the emissions I'll pose less of a problem - it may be unnecessary but it's just what I've done for the past few years. It's recently been pointed out to me that I've got a worn guide which shows itself on the overrun but only when the engine is warm. I've been doing short school runs and the like for the past 2 weeks and not spotted a single puff of smoke.

So, if I get the engine warm on the way to the test centre will it be detrimental and pose more of a problem than a cold engine? That's it, thanks in advance.

[cassandra]

Hi, should make no difference to the test as the vehicle must be at 'normal operating temperature' for the emissions test anyway.

[what2do]

At normal operating temperature, won't the burning oil be a problem? I appreciate that the tester won't be experiencing the overrun whilst the probe is in the exhaust, just wondering what effect it may have. Thanks.

[OddJobBob]

My van burns oil in a similar fashion and has done so for a couple of years. It has never failed its MOT because of this but each year "blue smoke" appears on the list of advisories. Should be OK.

Rob

[kevtherev]

If the van passes the emissions test @ 2000 rpm then it passes period.
If it fails at that speed then it fails altogether