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Interesting youtuber

cuslog

cuslog

Super User
Premium Member
I started watching this guy lately - rebuilding a Rolls-Royce Merlin engine. Was a professional aero engine rebuilder, now retired, just does it for fun now. Goes into quite a bit of depth. Quite amazing the depth they went to in the 1930's / 40's with slide rules and all manual machines.
 
These engines I found to be very interesting, one of things was that they have a bevel gear drive up to the cam
shaft. They have some over at the Nanton Air Museum, I have spent some hours there and hopefully more in the future.
Watched the 4 engine bomber fire up, the 4th engine did not catch rite away and had a “bit” of flames all down her, a few people beside me thought that was the end, I told them, when she does catch, she will blow the flames out. Got a few funny looks, got a few more when she did catch and blew the flames out.
They also had one of the Bristol radials on an engine stand that was fired up, now that was some noise! She seemed to be missing on one cylinder, even after warming up a bit.
Great fun, if you are into some of the history, planes, or noise, bring you ear mufflers if they are doing fire ups!
An old friend seen “the sky’s filled with bombers” when he was a small boy in England and the noise quite “loud”.
 
It's astonishing to me that the engine has such a small block casting as compared to a cast iron V8.
 
What was shown in the video was not a complete block, that was the crankcase, the cylinders sit on the crankcase with a turned down end that fits into the crankcase. I don't recall a cylinder shown in the video, and the head on top as per many engines. Though some engines have the head and cylinder as one piece.
Others may chime in on this also.
 
Bandit said:
What was shown in the video was not a complete block, that was the crankcase, the cylinders sit on the crankcase with a turned down end that fits into the crankcase. I don't recall a cylinder shown in the video, and the head on top as per many engines. Though some engines have the head and cylinder as one piece.
Others may chime in on this also.
Click to expand...
Yes same as aircooled VWs and Porsche blocks.
 
I don't know if all, but every air cooled multi cylinder engine ive seen have the cylinders seperate from the block

Many water cooled two stroke engine are like this as well

I think as casting technology improved the practice of 2 piece cylinder blocks mostly went away...at least with water cooled 4 strokes
 
As a slight aside, I'm constantly amazed by internal combustion engines. Well steam too but more so modern IC engines. The ability for a modern engine to go 100,000 miles without a hiccup, (assuming regular maintenance) is really a marvel. How many times each piston comes to a dead stop at the top of the stroke only to be jerked back don again. Over and over... mind boggling.
When James Watt was boring steam cylinders to .1" tolerance I'll bet he never imagined our current state.
 
Bandit said:
These engines I found to be very interesting, one of things was that they have a bevel gear drive up to the cam
shaft. They have some over at the Nanton Air Museum, I have spent some hours there and hopefully more in the future.
Watched the 4 engine bomber fire up, the 4th engine did not catch rite away and had a “bit” of flames all down her, a few people beside me thought that was the end, I told them, when she does catch, she will blow the flames out. Got a few funny looks, got a few more when she did catch and blew the flames out.
They also had one of the Bristol radials on an engine stand that was fired up, now that was some noise! She seemed to be missing on one cylinder, even after warming up a bit.
Great fun, if you are into some of the history, planes, or noise, bring you ear mufflers if they are doing fire ups!
An old friend seen “the sky’s filled with bombers” when he was a small boy in England and the noise quite “loud”.
Click to expand...
Here’s the one in Nanton firing up.

 
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