EGT Probes & compression glands

[Greg_S]

Gonna order me up a new probe again this week.

Farnell are doing good deals on the 3mm probe at the moment.

you need both of these items for it though.

3mm x 150 mm k type thermocouple





Compression gland for 3mm thermocouple

Greg

[Doug_RS2]

Can you post the part number for that thermocouple - the link aint working.

I was just going to get one from farnell - but they are only 1m long leads?

One thing I have noticed is that although most say they are upto 1100deg C, of measurement, the operating temp is a lot lower

Are your ones melting in the manifold Greg?

[Doug_RS2]

http://www.ajthermosensors.co.uk/

I had this link - but it isn't working for me just now - I think this lace had a very rugged looking one or it had some that were 50mm long - I'm still seacrching for the right one.

[Greg_S]

Order Code 7078183

PROBE,THERMOCOUPLE; Length / Height, external: 150mm; Length, lead: 100mm; Sensor type: K; Conductor make-up: 7/0.2 mm; Diameter, external: 3mm; Material: 310 stainless steel; Temperature range: -40 to 1100 degrees C; Th

then you have choice between stainless steel and brass compression gland.

7088218

THERMOCOUPLE,COMPRESS GLAND; Diameter, probe: 3mm; Material: Brass; Thread size: 1/8" BSPT

254642

COMPRESSION GLAND; Diameter, probe: 3mm; Material: Stainless steel; Thread size: 1/8" BSPT

With the SS compression gland and this thermocouple it works out at £23.10 just ordered mine up so should arrive mon or tue next week.

Greg

im gonna go for the SS one since exhaust is SS too. Im planning to take the old thermocouple out this wend. The first one did break up in the exhaust, that was 1 or 1.5mm dia this is 3mm dia and should be upto the job alot better.

Greg

[Doug_RS2]

Where is your box of electronics Greg? Is it in the engine bay or are you extending the wires into the car?

i think I will just go with the stuff from Farnell as well.

[Greg_S]

the sender for it is in the engine bay then a different lead to the gauge. the lead you get on the 150mm x 3mm thermocouple is huge anyway, you can buy extender leads from farnell also.

But you will need some K type plug/sockets too.

Greg

[Paulm]

Greg

I ordered the above but where do i get the rest of the bits gauge etc. What kind of set up do u have

Paul

[Greg_S]

take a look at this thread

http://www.s2forum.com/forum/showthread.php?s=&threadid=1024&highlight=egt

The gauge ive got is from SPA design which is a dual gauge for boost and EGT's, was about £288 from SPA Direct.

The original probe they sent wasnt upto the job though and have got the new one from farnell like ive shown on here which is from the same range as they one i was sent.

Greg

[Stick Insect]

Originally posted by Greg_S

im gonna go for the SS one since exhaust is SS too.
Greg

Greg,

SS in SS is not always a good idea, it is not a self lubricating metal. it can gall and pick up ( just like aluminium), be careful and use coppaslip or similar.

I would suggest Brass.

David

[Greg_S]

Doh,

Ive ordered SS now, will put plenty of copper slip on anyway.

cheers.

Greg

[Stick Insect]

I have had stainless items sticking before.
Grease it up well and you should be OK

Brass can gall as well.

David

[Greg_S]

whats galling?

[Stick Insect]

Originally posted by Greg_S
whats galling?

It's something done by Asterix..

No it's a good question, it is a technical name for when two things rub together and cause damage to one another.

If you think of an engine shell bearing which has been damaged due to lack of lubrication, that is a form of galling.

If you have seen the damage that is causd when something had rubbed inside aluminium and the surface has 'picked up' that is Galling. It shows as grooves in the direction of movement and also small lumps and tears in the metal.

It is also used as a term for something annoying such as "the boss hasn't given me a pay rise and that really galls me"

HTH

David

[Stick Insect]

52mm white faced EGT 0-1600F gauge which should suit S2

http://www.diamondstarmotorsport.com/gaugeparts.shtml

D.

[S2central.net]

£288 for a frickin' guage - jees louise...

As this jiggery-pokery on the collection of S2's owned by this forum is getting to be an awful expensive addiction.

Must stay strong... avoid the voices in the dark tempting me with thoughts about hybrid turbos, silly injectors, big MAFs, exotic manifolds, AEL blocks etc etc