Try "en67 lpg" as your search terms in Google. At least two of the links found have the official EN67 spec available. I hope EN is not equivalent to SAE, where such things need to be purchased, apologies to moderators if this is so.
Thanks to all for the interesting comments and links. Tmoose, the linked pdf you intended to send didn't. If you don't mind I'd like to have a look. Could you retry that? Here are 6 more images of the subject and related items...
I'm working on getting either better pictures or the item itself. A correction on the first post - this was not an OEM part. The OEM part has 15 teeth, this one has 14. A point was raised elsewhere that "less teeth works the chain/sprockets harder". I can find no objective, professional data...
This was coincidentally (and probably luckily) discovered while a Ducati 1098 was being routinely cleaned. There were no symptoms, noise and reportedly no abuse. Chain and rear sprocket were in good condition, i.e., not damaged at all. It looks like the damage on the 3 involved teeth were...
The US RX-8 Mazda rotary is factory mapped to go rather richer than stoich under certain operating conditions that are not high load (such as higher speed cruise) in order to keep the cat cool enough to last 80K miles. My point is that there are sometimes reasons other than optimum engine...
I'm of the opinion that the best way to answer these questions is via empirical methods. It's really difficult to accurately model this stuff as there are way too many variables. Logging the best quality data you can for post analysis, starting in safe operating regimes and going where the data...
That appears to be an attempt to combine all the potential deficiencies of 2 stroke piston engines, 4 stroke piston engines and the Wankel into one machine with bonus points for some new inefficiencies. I wonder if they're accepting investment money.....
I know of a gentleman who powered a Cozy Mark IV aircraft with a Mazda rotary. As far as I know, his only semi-catastrophic failures (engine kept running but with no boost) were due to the stock turbo hot side wheel detaching itself from the shaft a couple of times. Apparently those turbos are...
There are numerous types of lambda sensors. The diagram you've posted is of the more useless variety, the narrow band sensor. It's only reliable, reproducible ability is to tell you which side of stoich you're at. It is totally unreliable at telling you how far off stoich you're at. Most of the...
RE leaf springs not rusting to the failure point: There are a lot of owners of boat trailers in salt water service who would disagree with that premise. Even well rinsed after use you are lucky to get much past 3 or 4 years.
Personal experience in a Mazda RX-8 is city mileage 17mpg w/E10 93 PON, 21mpg w/ Rec-90(ethanol free 90 PON). Using ethanol free in the car is a no-brainer - I can't use 87 or 89 in it and the 93 E10 and R90 are the same price. Neither causes counts on the knock sensor unlike the 87 and 89 E10...
