Thread: EGT gauge reading too low?

Your cruising figures of 250 (gentle) and 400 (100km/hr) sound correct. Full load up hills should be more like 650-700. Looks like you have some room to boost the fuelling

Those figures are SPOT on.....

do a hard Hwy hill then on the down hill clutch it and idle.... should drop to 200 in seconds...

Originally Posted by Wilbur

Holding it flat to the boards in 3rd at about 80KPH up a 1 kilometre hill it reaches 450 degrees, which seems suspiciously low to me.


Grateful for any suggestions.

Cheers everyone,

Paul

That figure is not overly suspiciously low. The EGTs would be higher if you tackled that hill in 4th. Next time you run that hill, try it in 4th - if it labours, just keep the foot planted - the EGTs will go well beyond 450.

When I towed with my 200Tdi Discovery, the EGTs dropped markedly if I downshifted to 4th and let it rev rather than strain in 5th.

Thanks for the replies - that is just what I wanted to hear!

Reckon I will try boosting the fuelling. It is VERY economical, maybe that's why. The only reason I haven't tried it before is that even with over a ton of camper on the back it is nearly as fast (on the flat) as my TD5 130.

It also gets the same economy......

Cheers all,

Paul

Oh also, it does drop some black smoke a bit when under heavy load. Am I right in guessing that means I shouldn't increase the fuelling?

That little pocket is fine, as long as you have 20mm extending into it. The difference between here and No.1 exhaust branch are virtually identical. Ian peterson, http://www.thermoguard.com.au/ who markets his own egt gauge tested these two positions, he is a wealth of knowledge on egts and gauges.( I am not affiliated with him, I just picked his brains).

Originally Posted by Wilbur

Oh also, it does drop some black smoke a bit when under heavy load. Am I right in guessing that means I shouldn't increase the fuelling?

Depends where - if it's only smoking on WOT then you can still get more mid range performance by boosting the turbo compensator cct. Perhaps wind the max fuel screw out another 60deg if it is only at WOT.

Originally Posted by pawl

That little pocket is fine, as long as you have 20mm extending into it. The difference between here and No.1 exhaust branch are virtually identical. Ian peterson, ThermoGuard Instruments who markets his own egt gauge tested these two positions, he is a wealth of knowledge on egts and gauges.( I am not affiliated with him, I just picked his brains).

Thanks Pawl,

That's good to know.

In fact it is one of Ian's thermocouple kits I used, to replace the one that came with the VDO kit that I lost.....

Cheers,

Paul