Perfect. Easy to get from there to 1/8th" NPT.
The ONLY thing then is whether the temp probe reaches into the gearbox case far enough to be accurate, or if all of the metal components in the area are going to be the same temperature more or less, and the stacked adapters won't really matter.
One Thing I like about the adapter for the VDO sender is that it adds very little depth to the arrangement, so that the Temperature probe is well into the case, and into the oil.
The oil cooler set-up, with the stainless fixtures also put the sensors in the oil flow.
You got a point there.
The probe looks like it sticks out by half an inch, before the adapter. It would probably come flush with the tranny case. The probe would still be flooded by fluid though.
The problem with this gauge is that it has a range of 150-400 degrees, whereas our transmissions generally run under 200 degrees. To make matters worse, the gauge face basically has 150-200 degree range as the first two hash marks and the 200-400 degree range make up the rest of the gauge range. (See pic in second post) So, most of the time, the needle is going to be setting near the low poin
It's more about setting and monitoring a base trans Temperature and watching it as you drive.
If the absolute temp is off by some % due to air flow, or the case temperature Vs. the actual Oil Temp, or whatever, once you get used
to what "normal" is for your truck is, and you can notice "hotter than normal", or "Too dang hot" , then that is what I'm looking for, anyway.
The more accurate the better, of course, as some systems or lubricants have
temperatures where they absolutely fail, but I'm just wanting to establish
an idea of what I'm doing to the trans Temps during extended desert drives, as well as setting a baseline for what the cooling system will, eventually, be doing to help that.
It's more about setting and monitoring a base trans Temperature and watching it as you drive.
If the absolute temp is off by some % due to air flow, or the case temperature Vs. the actual Oil Temp, or whatever, once you get used
to what "normal" is for your truck is, and you can notice "hotter than normal", or "Too dang hot" , then that is what I'm looking for, anyway.
The more accurate the better, of course, as some systems or lubricants have
temperatures where they absolutely fail, but I'm just wanting to establish
an idea of what I'm doing to the trans Temps during extend desert drives, as well as setting a baseline for what the cooling system will, eventually be doing to help that.
That's true, abnormal fluctuation monitoring is the goal here
I've done some checking on gauge accuracy by Brand, and in some cases
at least, the VDO stuff does not come out so well. There was a "study" done in Australia (by a car Mag, I think) and it was interesting. Some brands had very accurate water temps, but really bad oil pressure accuracy. It's been a while.Autometer had some problem areas as well.
I think Autometer , in general, has a good rep however, and there are certainly a ton of race teams that use them, on and off road. Livorsi (sp) and SPEK are two others that are showing up, off-road at least.
I have also heard that the Autometer EGT gauge works better (at least it registers changes more quickly than the VDO version), and I want to match everything up. Since I think the EGT gauge is probably the most important, I plan to start with that and add others that match.
There are, of course, other good options out there.
There was something that Dr. Dan posted on the Mail-List some time ago where he listed his Trans temps, speed on the hwy, outside air temps, etc....I can't find it, but I think his trans got up into the 250 degree range. I could be way off here, maybe it was 180...it is a drag to not be able to find stuff...but we have a lot of help here....at their keyboards. maybe they'll chime in...
sorry , maybe im off topik ,
i want to ask about high temp at the transmision
(and if anyone know what type of oil is used in 411 gearbox)
im instaling a faster engine here http://www.benzworld.org/forums/3780388-post14.html
and i think i must install a temp sensor too :/
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