Author Topic: Strictly.... “ Hot Air “  (Read 71649 times)

Offline Jo

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Re: Strictly.... “ Hot Air “
« Reply #180 on: August 30, 2018, 07:59:26 AM »
Just put the hole in the right place to help counterbalance the weight of the piston :LittleDevil:

I was thinking if I put on the flywheel so that when the power piston is fully out the hole is at the bottom it would not be as noticeable especially after the JBWeld filler goes off ;)

Jo
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Offline Alyn Foundry

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Re: Strictly.... “ Hot Air “
« Reply #181 on: August 30, 2018, 11:15:56 AM »
Damn, damn.... DAMN!!

Never, ever had this kind of problem in the past. What if I had interested parties overseas? I wouldn't dream of sending something out with potentially hidden flaws. Sadly this effort is already tarnishing my reputation.

The foundry is, as I write, replacing the faulty flywheel castings. But with what? More of the same?

Jo, a little dust from the swarf mixed with the filler helps disguise the finished repair.   ;)

Hopefully your " O " ring arrives today, late, but that's the new improved postal service. It cost £1.01 to send first class and still didn't get there the day after. And the price, who the hell came up with the penny?

All I can say is that you shouldn't have any problems with the other castings they're genuine OEM !!   :)

Ok, sorry for the rant....

Cheers Graham.

Offline Jo

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Re: Strictly.... “ Hot Air “
« Reply #182 on: August 30, 2018, 12:09:04 PM »
Royal Snail  :disappointed: As we have stamp collectors in the family I normally "recycle" stamps  :-X Its amazing how many do not get franked these days. I can't remember when I actually paid for one. I'll keep my eyes open for it but the new postie doesn't normally turn up until about 2pm  :-\

The displacer cylinder is due to be delivered around dinner time  :cartwheel: Thanks to Dave for convincing me that having home deliveries of groceries is a good thing = less time tediously walking round shops, sitting in traffic jams and no Diesel used  :ThumbsUp:


While I wait for the grass to dry I have been making a little swarf in the workshop  :naughty:

Jo

« Last Edit: August 30, 2018, 12:13:09 PM by Jo »
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Offline Alyn Foundry

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Re: Strictly.... “ Hot Air “
« Reply #183 on: August 30, 2018, 12:24:48 PM »
Jo, I hope I've caught you in time.

You really need to do all the other faces before the bore.

I squashed my first cylinder oval using the vice to mill the flat faces. Once learned never forgot.


Cheers Graham.

Offline Jo

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Re: Strictly.... “ Hot Air “
« Reply #184 on: August 30, 2018, 12:42:23 PM »
:headscratch: I had to mill the base flat and square to be able to hold it in the four jaw. It might still be a bit tall but until I know where the bore is I have nothing to measure off of  :noidea:


Just taking the last boring cut before starting on the back face about 1mm to come off of there before doing the 25.4mm hole. Then it can be turned round and possibly mounted on a mandrel.

Jo
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Offline Alyn Foundry

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Re: Strictly.... “ Hot Air “
« Reply #185 on: August 30, 2018, 01:45:12 PM »
Hi Jo.

Never mind the head scratching, I've machined many a rough casting, but in this case you did the right thing. Once bored you can expand your 3 jaw into it and do the tail end.

Don't worry about the height it doesn't matter much. In fact most of the engine doesn't matter much either! The only really critical part is the piston to bore fit. Oh and of course the crankshaft. And definitely the displacer rod hole.

As I've written recently they need to be a tad " slack " just remember Eric's words.   ;)

Cheers Graham.

Offline Jo

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Re: Strictly.... “ Hot Air “
« Reply #186 on: August 30, 2018, 04:32:39 PM »
His usual term is "a rattling good fit"  ;)

The cylinder was turned round and the other end counterbored for the governor cover but it has not been finished as the displacer cylinders arrived and some Sticky Wotsits to go with my coffee  :naughty:

Jo
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Offline Alyn Foundry

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Re: Strictly.... “ Hot Air “
« Reply #187 on: August 30, 2018, 04:52:16 PM »
Okay, which are the " sticky whotsits " ?

Has your " O " ring arrived yet?

And no, that wasn't the one you wrote about some weeks ago!    ;)

Cheers Graham.

Offline Jo

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Re: Strictly.... “ Hot Air “
« Reply #188 on: August 30, 2018, 05:06:21 PM »
The best Sticky wotsits are made by Thorntons  :LickLips: but they only come in packets of 9 and Mike proved that a packet has a very short life expectancy - under 1 min with him around ::) . So these are being quality tested to see if they are up to acceptable standards. The Waitrose own ones went down ok at Bristol  :thinking: But I found the chocolate a little solid on the shortbread ones 

Has your " O " ring arrived yet?

:ShakeHead:

Royal fail-ed, so much for first class  :toilet_claw:

Ah the other phrase that Eric uses I am sure I have not written that down on the forum  :hellno:

Jo
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Offline zeeprogrammer

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Re: Strictly.... “ Hot Air “
« Reply #189 on: August 30, 2018, 05:28:54 PM »
and some Sticky Wotsits to go with my coffee  :naughty:

Coffee? In the background I see some  :wine1:
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline Alyn Foundry

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Re: Strictly.... “ Hot Air “
« Reply #190 on: August 30, 2018, 05:37:44 PM »

Ah the other phrase that Eric uses I am sure I have not written that down on the forum  :hellno:

Jo

Dear Jo.

Some of us have longer memories!!   ;)

http://www.modelenginemaker.com/index.php/topic,7664.msg171010.html#msg171010

Cheers Graham.

Offline Jasonb

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Re: Strictly.... “ Hot Air “
« Reply #191 on: August 30, 2018, 05:54:29 PM »
and some Sticky Wotsits to go with my coffee  :naughty:

Coffee? In the background I see some  :wine1:

Zee, that makes everything loosen up :LittleDevil:

Offline Jo

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Re: Strictly.... “ Hot Air “
« Reply #192 on: August 30, 2018, 07:23:50 PM »

Ah the other phrase that Eric uses I am sure I have not written that down on the forum  :hellno:

Jo

Dear Jo.

Some of us have longer memories!!   ;)

http://www.modelenginemaker.com/index.php/topic,7664.msg171010.html#msg171010

Cheers Graham.

That's the somewhat cleaner version of the real expression  :-X 

Jo
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Offline Jo

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Re: Strictly.... “ Hot Air “
« Reply #193 on: August 31, 2018, 02:02:00 PM »
More swarf has been seen in the workshop  :naughty:

And Royal Snail finally arrived from far away lands  ::) Thankyou Graham  :ThumbsUp:

Jo

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Offline Alyn Foundry

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Re: Strictly.... “ Hot Air “
« Reply #194 on: August 31, 2018, 04:46:19 PM »
Phew!!

Be very careful with that Jo, I'm waiting on a phone call from the original supplier. They don't have any record of them at that particular size.

Cheers Graham.

 

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