Cylinder block

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Cylinder block

Post  Lufccrowther on Thu 08 Nov 2018, 6:32 pm

Hi guys
Ive just had a close look at my cylinder block i got last month and realised ther is two small holes in the lining of the cylinder. However the holes dont proceed into the cylinder block it self. I believe it could be holes for the drain cocks. Does anyone else block look like this or this a mistake on STW behalf?

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Re: Cylinder block

Post  Lufccrowther on Thu 08 Nov 2018, 6:34 pm



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Re: Cylinder block

Post  Steve Traill on Thu 08 Nov 2018, 7:23 pm

Pretty sure they are the cylinder drain cock holes for letting any water out that condenses in the cylinder. I always start with them open so that any water is ejected and it gives a softer more controlled start especially if you're up on full pressure.
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Re: Cylinder block

Post  Lufccrowther on Thu 08 Nov 2018, 7:36 pm

Hi steve. Thanks for the reply, Yeah , i understand the priniciples. But im questioning wether the who should go through the cylinder block as well as the lining?

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Re: Cylinder block

Post  lynnr on Thu 08 Nov 2018, 7:46 pm

Hi

There should be drains there. Looks like the either the liner is not in the correct place or the drains have not been drilled deep enough to reach the liner holes.

By the fact that the drains are drilled I would suggest finding out the length and stick a wire up the drain holes to see how long the hole has been drilled.

Might just need a drill stuck up it to finish off the hole.
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Re: Cylinder block

Post  Lufccrowther on Thu 08 Nov 2018, 7:50 pm

Thanks lynn, ill give it a go
Thanks
Luke

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Re: Cylinder block

Post  Steve Traill on Thu 08 Nov 2018, 7:55 pm

Aah, I see said the blind man! The holes should go through to the outside, the liner might be slightly out of line, looking at your picture the holes look completely blanked off. Do the slots/ports for the steam line up nicely?
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Re: Cylinder block

Post  Lufccrowther on Thu 08 Nov 2018, 8:07 pm

Ah, i would say the liner is about 7mm too low by looking at the steam ports

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Re: Cylinder block

Post  Lufccrowther on Thu 08 Nov 2018, 8:08 pm


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Re: Cylinder block

Post  Steve Traill on Thu 08 Nov 2018, 8:15 pm

I'd send it back. The liner is out of line, you could get over it with a dremel but right is right & it's a pretty important part of the whole engine.
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Re: Cylinder block

Post  Lufccrowther on Thu 08 Nov 2018, 8:19 pm

Ok, yeah it a pretty important part of the engine. Ill call STW tomorrow concerning the problem. Thanks for all your help
Thanks
Luke

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Re: Cylinder block

Post  Simon C on Thu 08 Nov 2018, 8:31 pm

Hi Luke
Just done the measuring thing for you I can get a 4mm drill bit 58.5 mm into the drain boss on the side of the block.
Just one other thing if you put the block on the boiler in its correct position the drain should be in the 6 o'clock position, if you do not have your boiler yet then put the block on its valve cover face and the drain port should now be at 3 o'clock and 9 o'clock depending on the port you are looking at.
hope this makes sense.
Simon C
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Re: Cylinder block

Post  Lufccrowther on Thu 08 Nov 2018, 8:39 pm

Hi simon. I can get a 4mm drill bit 60mm in to the drain boss.
I haven't got the boiler, thats the next kit. It seems that the drain port is around 2:30 mark on rhe valv cover.

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Re: Cylinder block

Post  lynnr on Thu 08 Nov 2018, 8:40 pm

Defo


Liner is not in the correct place. Contact Steam Traction World
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Re: Cylinder block

Post  Lufccrowther on Thu 08 Nov 2018, 8:51 pm

Yeah, i thought so. Ill contact them in the morning.
Thanks
For all your help
Luke

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