Author Topic: Product review: Aircraft Spruce EGT Thermocouple (Read 27230 times)

stewardc · « **Reply #30 on:** March 30, 2007, 07:04:57 am »

Does anyone know of a good online source for the "Weatherpak Connector" that Jake used?

speedy · « **Reply #31 on:** April 04, 2007, 12:13:35 am »

I called Aircraft Spruce about the thermocouple the other day - they were friendly and helpful as usual. They confirmed that there were no washers in the bag.

I went to Elliot's Hardware and found a 4-pack of 1/8" copper "compression sleeves". Popped one onto the probe, tightened the nut, and... oh happy day! It now holds the probe tightly in place.

I don't know why there wasn't one included in the bag - maybe that's why they are so cheap? Surplus, missing parts... ?

speedy · « **Reply #32 on:** April 04, 2007, 08:03:16 pm »

I suppose it's possible that I didn't notice the ferrule and that Aircraft Spruce didn't notice it because it was inside the nut.

-Dave

zagarus · « **Reply #33 on:** October 08, 2007, 01:29:21 am »

so with the aircraft spruce thermocouple being k-type,

that means this autometer gauge will work perfectly as it uses a k-type coupler too correct?

http://www.autometer.com/cat_gaugedetail.aspx?gid=3230&sid=12

im trying to stay with the same brand of gauges but i jsut want confirm with you guys...also how easy is it to get the exhaust manifold off? i've never done it before and i want to get the EGT gauge setup before the snow starts to fall and it isn't easy to work on the car.

vdubin_g60 · « **Reply #34 on:** June 01, 2008, 04:08:03 pm »

would the 7ft wire they carry be enough for a diesel rabbit? also would a weld on fitting be beter? Does a fitting come with it or do you just tap the manifold?

whats better 1/8 or 1/4? thanks

speedy · « **Reply #35 on:** June 01, 2008, 05:41:08 pm »

Quote from: "vdubin_g60"

would the 7ft wire they carry be enough for a diesel rabbit? also would a weld on fitting be beter? Does a fitting come with it or do you just tap the manifold?

whats better 1/8 or 1/4? thanks

In order:

Yes, I think it should be enough.
No, I don't think a weld-on fitting would be better. I'm not sure you can weld to cast iron like that.
BOTH: A fitting comes with it, if I recall, and you have to tap the manifold to install the fitting.
1/4 NPT is pretty big, I wouldn't want to drill that big of a hole in my manifold. Go with 1/8 NPT.

-David

hamradio · « **Reply #36 on:** June 03, 2008, 09:04:46 am »

I bought one a week or two ago, and in my testing with a propane stove flame, it is very fast reacting and accurate. I'm satisfied.

saurkraut · « **Reply #37 on:** June 03, 2008, 09:25:39 am »

Quote from: "speedy"

1/4 NPT is pretty big, I wouldn't want to drill that big of a hole in my manifold. Go with 1/8 NPT.

-David

I went with what ever came with the VDO and Spruce probes. The mounting adaptors are interchangeable. I drilled and tapped two manifolds, right in in the center of the turbo mounting bolt circle.

One of the manifolds has over 100K miles, lots of boost, and over five years of service with no problems.

Here is the Spruce thermocouple in my 1.5TD project:

rabbitman · « **Reply #38 on:** June 03, 2008, 03:05:14 pm »

I bought a VDO cockpit international pyrometer and it reacts very slow, like it'll still be climbing when coasting down the other side of a hill. Anyways I don't know much about EGTs but I assume it's a k-type thermocouple, so if I get the aircraft spruce thermocouple will it react faster?

gigaz2 · « **Reply #39 on:** June 03, 2008, 03:16:02 pm »

the meter itself also has to be fast responding.
some have filters so the signal doesn't bounce and give false readings, that also makes them slow.
but most of the times its just thermal inertia on the sensor.

think as if the heat came to the sensor in a wave, changes mediums from exhaust gases to the sensors metal, travel inside it and then reaches the actual thermocouple.

Spruce's only have a very thin inox covering, hence the response speed.

saurkraut · « **Reply #40 on:** June 03, 2008, 04:05:23 pm »

Quote from: "rabbitman"

I bought a VDO cockpit international pyrometer and it reacts very slow, like it'll still be climbing when coasting down the other side of a hill. Anyways I don't know much about EGTs but I assume it's a k-type thermocouple, so if I get the aircraft spruce thermocouple will it react faster?

I have a VDO gauge and thermocouple in the 1.6. Its slow.

I have a VDO gauge with a Spruce thermocouple in the 1.5. Its fast.

Get the spruce thermocouple.

saurkraut · « **Reply #41 on:** June 03, 2008, 04:22:08 pm »

Screw it, I just took my own advice and bought another Spruce thermocouple for the 1.6.

vdubin_g60 · « **Reply #42 on:** June 12, 2008, 11:04:54 pm »

i ordered the thermo, but where can i get a vdo egt gauge. cant find a site that sells them that looks good

rabbitman · « **Reply #43 on:** June 12, 2008, 11:14:37 pm »

Quote

i ordered the thermo, but where can i get a vdo egt gauge. cant find a site that sells them that looks good

surrfman on ebay sells 'em, I think it's like $98 for just a gauge and you'll have to ask him about it, he doesn't list 'em for some reason. While yer at it see if he has a scratched one for cheap. I bought a boost gauge from him for $18 'cause it had a small scratch which I could barely find.

vdubin_g60 · « **Reply #44 on:** June 12, 2008, 11:39:44 pm »

where i can i get a hold of him couldn;t find anything on ebay. thanks

Author Topic: Product review: Aircraft Spruce EGT Thermocouple (Read 27230 times)

stewardc