Author Topic: Drive Chain Adjustment (Read 15025 times)

pmackie · « **Reply #15 on:** June 11, 2007, 01:16:09 PM »

Jet A and Jet A-1 ARE Kerosene. Very clean, very dry Kerosene, so they are fine. Jet B (or Mil spec JP-4) is Kerosene mixed with Naptha. I would avoid it. Not to mention that's it's extremely flammable.

Also fine is Varsol or similar petroleum parts washing solvents. This is what I use. I usually thoroughly wet a rag and wipe down the chain. Occasionally, I use a pan and paint brush and do the sprocket, hub, etc as well.

Quote

Petroleum distalilates, propane, naptha and isobutane

Without testing it on the particular O-rings, I would be hesitant to use this on a chain, even though it would clean really well. The Naptha and Isobutane MAY (or may not) cause the O-rings to swell. Again, this combination is VERY FLAMMABLE. Don't use it inside the garage, unless you have it very well ventilated.

Red01 · « **Reply #16 on:** June 11, 2007, 01:19:18 PM »

You don't have to worry about getting Jet B in the US, they don't sell it. I hear the biz jet boys that want extra power will fly up to Vancouver to get it though.

The US Army & Air Force burn JP-4, which is essentially Jet B, but it's not available commercially. The Navy, Marines & Coast Guard use JP-5, which is essentially Jet A1, because it's safer aboard ships than JP-4.

pmackie · « **Reply #17 on:** June 11, 2007, 03:16:16 PM »

I'm a little out of the loop, but I think Jet B is done here as well. No longer available on the west coast for sure. It was last being made in Edmonton for the Canadian Military for use in the arctic, but I think it may be completely gone.

Red01 · « **Reply #18 on:** June 11, 2007, 05:35:40 PM »

Well, it was 25+ years ago that I worked at the airport fuel depot when I learned Lears would go to BC for "B" - we still sold 100/130 AvGas and 115/145 could be found if you knew the right people (in hydro & air racing circles).

2005B12S · « **Reply #19 on:** June 11, 2007, 07:22:54 PM »

Modern Lears (31,45,60) can only run JetB for short periods of time and with certain limitations.

I did run into a situation where Jet B was the only available fuel at a remote airport in Canada. Rather than use it in the Lear 31 I was flying at the time, we jumped over to another airport to fuel up. Its been several years ago, but I believe it was not compatable with the fuel control units.

Red01 · « **Reply #20 on:** June 12, 2007, 02:04:05 PM »

Could be... although the H-46's I worked on in the Corps could run Jet B/JP-4 for up to 3 tanks before we had to adjust the fuel controls with a quick manual adjustment. The C-130's could run Jet A/JP-5, Jet B/JP-4 and even gasoline. Their fuel controls adjust automatically. Gasoline did require log a book entry and prolonged use would shorten hot section inspection intervals.

OOPS! Off-topic again.