| Author | Message | ||
     Robert Noel Reddington Prolific User Username: bob_uk Post Number: 115 Registered: 5-2015 |
Whilst discussing paint for RR363 bits. I mentioned paint going brown due to heat. There are these little temperature sensitive stickers. Once overheated they change colour and stay that way. They are not expensive. I used to stick them on core plugs. If the sticker changed colour I know that the engine ( or other device) has been overheated regardless of what the owner may say. Thus saving time running the car to test it. And proof positive. On the RR V8 I would fit one on the radiator top tank. Not the header/filler tank. And one on the inlet manifold where the water that goes to the stat is. If say the inlet manifold one has indicated and the rad one hasn't then the stat has failed. So by correct placement of the stickers and using logic one can give a more accurate diagnoses simply by looking and importantly not allowing the engine to overheat again to check it. These stickers are used in many engineering applications | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 1389 Registered: 6-2009 |
Bob, Quite nifty. It's amazing what's out there for "specialty industry" use that you'd never know about unless someone happens to mention it. You are correct that these things are relatively inexpensive. This company, TipTemp, offers a wide range of irreversible single temperature indication labels. They would be better off mentioning that these come in a 50-pack on the page I gave a link to rather than forcing one to hit the "Learn More" button to find this out. Brian | ||
| David Gore Moderator Username: david_gore Post Number: 1646 Registered: 4-2003 |
The only problem in buying specialised industrial products is having to buy industrial quantities. Helps if you can buy on behalf of a group and share the purchase. | ||
| Robert Noel Reddington Prolific User Username: bob_uk Post Number: 128 Registered: 5-2015 |
I never thought of quantities. I had a boxes of a hundred. The ones I had, had a range of indicated temps of 30c spread. Every engine I built had temp stickers. I used two on two core plugs If missing after a claim I would then ask the question. It only happened once. The owner removed them, the engine hadn't overheated and was misfiring because the points had closed up. HB Viva. I put two new temp thingys on. No charge. I had a 1850cc Dolomite engine blow the head gasket. The stickers were indicated to max. The radiator was clogged. When I did engines for the owner to fit themselves I used to give them a dos and don't and I always recommend that the rad is checked by the Radiator shop. The stickers saved me from a civil court case. The owners expert witness agreed with me. | ||
| Robert Noel Reddington Prolific User Username: bob_uk Post Number: 129 Registered: 5-2015 |
Brian. I have just read the sticker site and 24 dollars for 50 is cheap. | ||
| Brian Vogel Grand Master Username: guyslp Post Number: 1397 Registered: 6-2009 |
Bob, There are myriad varieties of these things available for single temperatures, stepped temperature ranges, and that are irreversible (once color changes, they never go back) or reversible (act more like a thermometer). I figure for most automotive applications where you want to know if the car has overheated (or come close) you'd only need single temperature and irreversible type. Brian |
