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GreaTOne65 · 09-05-2015, 08:09 PM

For you fellas that have read my threads, you may have remembered I was adamant about installing a Pyrometer on this engine,(C-9). Well, today I got my first chance to see it in action, and I am a little less than impressed! Seems this thing is an accident waiting to happen. On a WOT acceleration through the gears, this thing could possibly peg the needle on this Pyrometer, it hit 1400 degrees!!?? if that is really the case, these C-9's are walkin' talkin' time bombs! So my question, has anyone else installed a Pyrometer on their C-9, and what are your experiences? Is it possible, this thing is getting that warm? The Pyrometer did as it is supposed to do, start at 160 degrees, runs 1000 degrees at 62 mph. In some of the hills in AZ and NM, I doubt it can make it with out melting itself down!

Any ideas?

laj · 09-06-2015, 12:11 AM

what's your history with the engine? if you bought the mh used did someone " chip it "
is your air filter clean? that can make them run warmer. jmho

2 Stroker · 09-06-2015, 12:40 AM

I don't have one on my C-9 but I do have one on my 06 Ford PSD and I can hit 13 to 1400deg at WOT when I had my Alpenlite 5er but I back out of it or drop a gear pulling a 7% grade.
Do you have any blockage in the exhaust system, turbo exhaust brake wide open. Have you pulled the line and added PacBrake lube in the line and on the shaft. You might call the Cat Hot line and see what they say the temps should run at WOT, just a thought.
I think my runs a lot cooler because I placed a outdoor digital temperature gauge on the floor in the closet and it only got to 80degs on the way to the coast. The reason I did it someone had posted there crocks had almost melted in there closet.

There are a lot of C-9 out there still running down the road.

2 stroker

wa8yxm · 09-06-2015, 02:19 PM

How did you calibrate the Pyrometer? Is it calibrated. Might just be a bad reading.

GreaTOne65 · 09-06-2015, 09:21 PM

Ok, this is a new to me coach, I have been driving a Discovery with a Banks equipped 5.9 L, and know what that engine would do, I also had farm tractors with pyrometers, I have never ever seen one of those engines pull 1400 degrees! It has been my understanding no engine should be allowed to run 1350 for more than a few seconds? Every filter, except the transmission filters have been changed, and they haven't been changed because I don't think it should need them yet. As for calibrating? Nothing was said about calibration, except that it was to read 160 on initial power up.

2 Stroker · 09-06-2015, 10:45 PM

Dale
Do you know what pyro you got, they can go in the exhaust manifold or they can go in the down pipe after the turbo. There is a 3 to 400deg difference in the reading. My 97 Ford had the pyro in the down pipe and I had to get the one for that and my 06 Ford I installed it in the exhaust manifold so there is a big difference. My Edge Insight shows the cold start temps same as my Silverleaf, I just don't have the pyro on my C-9.
2 stroker

MnTom · 09-07-2015, 10:15 AM

The first thing I would do is look to see if there are any boost leaks. Then look at the intake and exhaust for restrictions. You would be OK if you saw 1400* for a few seconds. Racers have been known to exceed 1800* in a 1/4 mile with no damage, but if you see 1250* continuous you risk having a meltdown. Any smoke out of the exhaust?

GreaTOne65 · 09-07-2015, 06:42 PM

Thanks for the interest, guys! I know what you are talking about, Stroker, but, I installed it where Autometer suggested it, before the turbo, as I did every tractor I installed them on. I went to Autometer, to see about calibration, it does not need calibration. Some engines have piston with steel tops, just for the protection of heat of 1400 degree combustion temperatures. I don't believe the C 9 is equipped that way? The thought about the exhaust brake sticking, something I will check tomorrow.
Thanks again guys!

GreaTOne65 · 09-08-2015, 06:53 PM

Well, as I expected, the Pacbrake is just as I thought, stuck wide open! Hell, at the rate I'm goin, I am going to have this thing rebuilt!
In answer to MnTom, if it does smoke I can't see it, the exhaust exits out the curbside, so I think unless it really blows black you won't see it. The filter meter, shows it is pulling 15 in. on a new Donaldson air filter.

MnTom · 09-08-2015, 07:36 PM

15" vacuum is pretty high. that is equivalent to 49.5% blocked or a 7.36 lb pressure differential according to this chart: Vacuum Conversion Calculator

GreaTOne65 · 09-09-2015, 06:24 PM

Well, Tom, something else to purchase! LOL!! A new filter restrictor gauge!! Replaced the air governor today because I thought it was building air kinda slow? Well, it's worse, the air dryer is leaking out the outlet. This is getting better and better!! LOL!!

Mr_D · 09-09-2015, 06:30 PM

When we had the Dutch Star it would always show 15 on the gauge when run hard even with a new filter and all it had was an ISC 350 with Banks kit. The present Magna has an ISX and shows 0 so far. Looks like there was too much restriction in the ISC inlet. In fact I was looking into larger inlet tubing and filter before we traded it for the present rig.

palehorse89 · 09-09-2015, 06:37 PM

Quote:

Originally Posted by MnTom

15" vacuum is pretty high. that is equivalent to 49.5% blocked or a 7.36 lb pressure differential according to this chart: Vacuum Conversion Calculator

I don't believe it is 15" of vacuum............it is read .......15" of H2O column.
27" of water column = 1 lb of pressure, approximately.
Mr D........I would check for leaks, make sure all the connections on the fresh air system are sealed and tight going to the air side of your turbo!! If one was to "Pull a Vacuum" on a filter minder,with your mouth, you would see that not much effort is needed to raise the gauge disc.

Max is 25" of H2O..........
Turbos/diesels like air.........with little air restriction, that is why the filters are so large........