250k miles, help with engine health checks/diagnosing

flatline · Thursday at 19:24

As title, 300tdi with 250k miles. Smokes on acceleration, white/grey and hangs in the air. Can see it during the day too.

Recently fixed a split lower intercooler pipe, drives much better than it did !

Timing belt done around 55k miles ago. Recently serviced.

Did a sniff test which appeared clear.

I've have a leak down tester which I'm planning on having a go with this weekend, I have a smoke tester and a compression tester.

After a bit help with what to do and in what order and tell me if I'm doing things correctly as I go

Cheers in advance

kevstar · Thursday at 21:02

Think your going to go through the list, enny meeny minny moe.............leak down first. lol

flatline · Thursday at 22:45

Forgot to mention, I did a leak off test and got no fuel in the bottle, not even any in the hose.

Is that normal?

flatline · Saturday at 18:49

Well that was a waste of a few hours

Fitting for the leak down tester leaks and the compression spring retainer thingy fell apart on the compression tester

flatline · Sunday at 17:20

New compression tester arrived today, can't seem to find an adapter for the leak down tester.

Cylinder 1 - 400
Cylinder 2 - 440
Cylinder 3 - 435
Cylinder 4 - 400

All looks good?

Also adjusted the valve clearance, some of them were extremely tight and somebody else has had a right go at them in the past as the bit where the flathead goes was mangled. I would like to check them again but I'm worried about damaging them even further.

lynall · Sunday at 19:14

Tight normally means idiot adjusted them last time, or valve seat recession.

flatline · Monday at 20:44

Any advice on the compression test results?

flatline · Monday at 22:01

Also got a pic of one of the glow plug tips, they all look like this. No oil, not clean but with a little soot.

All look normal?

Cheers

lynall · Monday at 22:09

flatline said:
Any advice on the compression test results?

So long as roughly the same then no worries, unless they are all amazingly low!

I would say maybe get injectors reconned and leave it at that on the engine health front.

flatline · Monday at 23:01

Need to change the adjuster screws in the head at some point, got a timing belt kit on the way from dingocroft also.

Sounds like I I'm gonna need an 8njector puller too

250k miles, help with engine health checks/diagnosing

flatline

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