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Topic: engine overheating (Read 1130 times) previous topic - next topic

Re: engine overheating

Reply #25 –
The next thing you need  is a products of combustion test kit. This will rule out any leaking head gasket. They are very inexpensive and easy to use. I bought a kit with a pint of of testing fluid but eash test only uses a ounce or so. The only other part they come with is a glass tube. You then go to the hardware store and buy a rubber plug/cork and drill a hole in it so the glass tube will go through it. You put a little fluid in the glass tube, start the coach and watch for bubbles. If the blue fluid turns yellow, the head gasket is leaking. $25 will do it: Head Gasket Test Kit for sale | eBay

I've used it on several vehicles and it works great and can't make a mistake. No mistaking the color change. Just take the radiator cap off and put the rubber plug in place.

Pierce
Pierce and Gaylie Stewart
'93 U300/36 WTBI
Detroit 6V-92TA Jake
1140 watts on the roof
SBFD (ret)

Re: engine overheating

Reply #26 –
Another option for a combustion test kit is harbor freight. They have one ready to go as well. This is a YouTube link to how it works.  https://youtu.be/4KDcRkiliuQ?si=E5RcCWITF0Xyfs3G

Thank you Pierce for suggesting that as a check. Gives me another tool to want :)
Michael & Ginny
Frankfort, KY
1992 U240 GV Build #4116
2007 Mini Cooper

Re: engine overheating

Reply #27 –
The combustion test was one of my first test's on my issue and showed negative. Jim.
Jim and Dona
2002 U295 36'
Lily, blue healer. Our fury person
Manx mid travel Ecotec turbo
2022 Bronco badlands Sasquatch
Trail 90 and 110cc

Re: engine overheating

Reply #28 –
I may be wrong but diesel doesn't produce carbon monoxide which the tester is looking for. When I was a mechanic with the Operating Engineers we worked in tunnels with heavy equipment running through the tunnels. The only thing on the exhaust of the equipment was a scrubber which was a water tank that the exhaust ran through to remove the particulates. We did need oxygen masks.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
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Re: engine overheating

Reply #29 –
Quote from: craneman –
I may be wrong but diesel doesn't produce carbon monoxide which the tester is looking for. When I was a mechanic with the Operating Engineers we worked in tunnels with heavy equipment running through the tunnels. The only thing on the exhaust of the equipment was a scrubber which was a water tank that the exhaust ran through to remove the particulates. We did need oxygen masks.
Pretty close on that one. Yes, diesel produces much less CO so it's harder to kill yourself with the exhaust but diesel exhaust does produce almost 300 compounds that are products of combustion. Another good reason for turning off your engine while fueling. Some of these compounds are carcinogenic, one of the reasons there are laws for shutting the engine down while fueling.  Fun watching English crime series where the diesel exhaust kills the guy in the back of the van. :D

Here is just a partial list of the compounds found in diesel exhaust: https://www.osha.gov/diesel-exhaust/chemical

 The tester does work on diesel engines but the fluid turns green instead of yellow:  560000 | Uview Combustion Leak Tester Kit (Gas/ Diesel Detector)

Nice if our diesel generators had turbos as they really knock down the particulates and the nasty smell up at altitude.

Anyone remember what a Greyhound station used to smell like? Totally different for the 2 cycles compared to 4 cycles.

Pierce
Pierce and Gaylie Stewart
'93 U300/36 WTBI
Detroit 6V-92TA Jake
1140 watts on the roof
SBFD (ret)