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| Joined: | 04-24-2006 |
| Location: | Chandler, Arizona USA |
| Posts: | 18 |
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Greg is correct on both counts. Jensen Healeys were not fitted with PCV valves in the early years, if ever. As to the possibility of an oil fire, I have never heard of such an occurrence. The emission regulators of the time apparently thought it made sense, and the oil fire theory persisted for many years. In actual practice, the function of the PCV valve is widely adopted and so long as the valve does not stick closed, they generally cause no problems. Crankcase emissions are far more chemically reactive than exhaust gasses and will react with uv-sunlight in the upper atmosphere to create far more 'brown cloud' than an equal mass of exhaust.