Codbasher · Apr 23, 2007

Asked a while ago about tappet spaces for a 2.5, 0.025 was the quoted figure, any way adjusted em, and now have oil blowing from the dipstick tube, with the dipstick in place....

Still getting pressure at the breather, engine runs quieter....

But what is wrong???

Bradj999 · Apr 23, 2007

Worn rings? Maybe gases are pushing past um into crankcase

discomania · Apr 23, 2007

You mean 0.25mm?

Adz · Apr 24, 2007

0.025 inches I think mate - 25 thou in old money

discomania · Apr 24, 2007

I don't think so, the clearance should be 0.25mm, that would be 0.9 thou!

Trewey · Apr 24, 2007

errr .25mm is about 10 thou!

discomania · Apr 24, 2007

Adz said:
0.025 inches I think mate - 25 thou in old money

Argh, yes 0. was an error!

So yes 9.85 or something, 10thou in round numbers. The point is, if he has done his clearances to 25 thou, they are wrong, I assume he meant mm because it should be 0.25mm, if he meant thou it would be 10 thou...

Adz · Apr 24, 2007

Well if he's done 'em up to 0.025mm then they is 10 times too tight

discomania · Apr 24, 2007

Indeed...

And if 25 thou, to big a gap...

Griffdowg · Apr 24, 2007

well whatever hes done, sounds like he ****ed it

Codbasher · Apr 24, 2007

Ah.......

Guess they were too tight, maybe not quite closing properly, allowing back pressure....

Fingers crossed no damage to valves or pistons, or yet another strip and rebuild...

Now I'm gettin confused here...
What exactly are the correct gaps in mm and thou...

GRUNT · Apr 24, 2007

On one off my owld Tritons I used to do em finger tight then back em of a gnats cock hair with the engine hot and it ran as sweet as a nut. Thing is I was either double rock hard then or didn't mind burnt fingers.

Valve clearances are

10J, 12J &19J engines 0.25mm or as far as tappets are concerned 0.010" (ten thou).
200TDi & 300TDi engines 0.2mm or as far as tappets are concerned 0.008" (eight thou).

eightinavee · Apr 24, 2007

GRUNT said:
On one off my owld Tritons I used to do em finger tight then back em of a gnats cock hair with the engine hot and it ran as sweet as a nut. Thing is I was either double rock hard then or didn't mind burnt fingers.

Valve clearances are

10J, 12J &19J engines 0.25mm or as far as tappets are concerned 0.010" (ten thou).
200TDi & 300TDi engines 0.2mm or as far as tappets are concerned 0.008" (eight thou).

Triton eh ? Slimline F/bed and a T110 motor ?

Codbasher · Apr 24, 2007

I thought Triton made showers................

GRUNT · Apr 24, 2007

I had a few 6TA, T100, T110. Dint have many showers in them days though.

slob · Apr 24, 2007

Codbasher said:
Ah.......

Guess they were too tight, maybe not quite closing properly, allowing back pressure....

quote]

can you explain how that happens????????

GRUNT · Apr 24, 2007

His exhaust is routed through the rocker cover.

yella · Apr 24, 2007

the original egr eh

slob · Apr 24, 2007

oh that eggplanes it then.. thank you mr grunt fer that lurverly bit of in****e to the workings of his infernal combusting injun. it probably has to do with amission control and other stuff that david bowie sings abart.
must be some kinda erg valve or summin or maybe a fuel pre heater system incoperating a blow by sprocket ring seporater waffle plate

slob · Apr 24, 2007

fook they'll be a spate of mot failures now.. tappets need tightning as yer emission levels are too high

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