I needed to warm up the cylinders for a compression test

[dcarver]

Well, the title about says it all -

I needed heat in the jugs to make an accurate compression test measurement.

Since the bike doesn't run right now, I fired up the the Rosebud torch to 'warm' the jugs up.

I was very careful to make sure each cylinder was heated as evenly as possible, front to rear.

I did have problems getting to the sides of cylinders 2 and 3, though. Not sure how best to heat them evenly, so I just cranked up more acetylene and oxygen for a hotter fire at the tip and threw the heat at the exhaust ports. My thinking is that since exhaust is hotter than intake, it only made sense.

When the radiator fluid started to boil, I knew I had just *enough* heat to take compression measurements.

That's when I discovered I didn't have the correct size adapter for the compression tester. Jeesh, what a waste of acetylene and oxygen.. :lol:

 

[SkooterG]

Dude, step away from the torch. Give that poor FJR to someone who knows what the hell they are doing before you **** it up even more than you have.

Mental note: NEVER, EVER take repair or maintenance advice from the crazy hippy from Kali!

 

[dcarver]

Dude, step away from the torch. Give that poor FJR to someone who knows what the hell they are doing before you **** it up even more than you have.

Mental note: NEVER, EVER take repair or maintenance advice from the crazy hippy from Kali!

You mean there is something wrong with this technique? RadioHowie said it was OK... and that he learned it from you? :lol:

 

[lonerider]

Let me know when you're gonna do that again; I want to watch..

 

[dcarver]

Let me know when you're gonna do that again; I want to watch..

Yeah, this was difficult to perform correctly. All the heat made the gas tank start to bulge.. so I had to open the cap to prevent problems. This of course led to the gas boiling and filling the shop full of fumes. It's a good thing I keep a fire extinguisher handy, just in case, jes' sayin'.. :laughingsmiley:

 

[lonerider]

Let me know when you're gonna do that again; I want to watch..

Yeah, this was difficult to perform correctly. All the heat made the gas tank start to bulge.. so I had to open the cap to prevent problems. This of course led to the gas boiling and filling the shop full of fumes. It's a good thing I keep a fire extinguisher handy, just in case, jes' sayin'.. :laughingsmiley:

Thanks for the heads up; I'll be sure to bring marshmallows and wieners along.

 

[dcarver]

Let me know when you're gonna do that again; I want to watch..

Yeah, this was difficult to perform correctly. All the heat made the gas tank start to bulge.. so I had to open the cap to prevent problems. This of course led to the gas boiling and filling the shop full of fumes. It's a good thing I keep a fire extinguisher handy, just in case, jes' sayin'.. :laughingsmiley:

Thanks for the heads up; I'll be sure to bring marshmallows and A. Wiener along.

Oh, noooo, now this thread has gone political!

 

[TomInPA]

Being Friday and all, you could put that torch to good use and grill some steaks. :yahoo:

Meanwhile, I have a need for my own pat-on-the-back. I finished doing my first valve checks, new plugs, CCT replacement, PAIR removal, coolant replacement, final drive oil, clutch, and brake fluid replacements....and

I put it back together with no leftover parts and the bike even runs!

 

[wfooshee]

and the bike even runs!

Geez, man, kick a man while he's down, why don't you??!?!?!!

 

[dcarver]

and the bike even runs!

Geez, man, kick a man while he's down, why don't you??!?!?!!

No worries, I have more bikes than just an FJR!

..Congrats Tom!

Just let me know if you ever need a compression test? :lol:

 

[HotRodZilla]

I don't even know what to say...{walks away shaking head and laughing}

 

[kaitsdad]

Uh oh....... :huh:

 

[Mike-H]

(dcarver) :lol: Most definitely a dirt donks thought process :good: :haha: :headbonk: ......(that made me laugh my butt off) thanks....

 

[bluesdog]

:dribble:

Reminded me of more than a few years ago, while wintering at my aunt's farm near Ruthilda Saskatchewan, watching my cousins warming up one of the tractors with a blow-torch so it would start

Damn that was cold.

I hate winter

 

[dcarver]

I'm glad at least some of yah's got the fact this was my attempt at a Friday joke!

 

[road runner]

Don

If you really want a more accurate comp reading then you need to get the pistons, rings, cylinder walls all warm. a torch will only heat the outside, I think a better way of doing it would be to put 2 ounces of Kero in each cylinder and lite them all at the same time. This way all 4 will get hot on inside and the kero will give you a slower burn.

 

[dcarver]

Don

If you really want a more accurate comp reading then you need to get the pistons, rings, cylinder walls all warm. a torch will only heat the outside, I think a better way of doing it would be to put 2 ounces of Kero in each cylinder and lite them all at the same time. This way all 4 will get hot on inside and the kero will give you a slower burn.

Sure, now you tell me the preferred methodology? Do you know how much acetylene I used attempting to get them jugs warmed up?

 

[wmadoty]

About a half cup of black powder in each cylinder should take care of all your problems. When it launches the head it might even fix your bulged fuel tank.

 

[S76]

About a half cup of black powder in each cylinder should take care of all your problems. When it launches the head it might even fix your bulged fuel tank.

The black powder method is only preferred when, after the compression test you want the head "Off" for valve adjustments.