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Part built Allchin 1.5 inch

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3404625/08/2019 10:33:31
772 forum posts
4 photos

Derek

I will give it a go today

What material does the drawing call for the studs to be made of just out of interest and what thread diameter / size so I can use similar.

I am sure it can be done

Thanks

derek blake25/08/2019 10:35:38
495 forum posts
130 photos

Hi

studs say bronze which is what I’ve made and 5BA, would it be a bad idea to loctite in these 4 studs? Or could that just spin them out.

derek blake25/08/2019 10:36:53
495 forum posts
130 photos

Thanks again for everyone’s time, it’s surprising how this hobby can go from fun to damm right misery for me..all because of 3mm wrong position and I hate things having to be bodged to work.

3404625/08/2019 10:46:10
772 forum posts
4 photos

Thanks Derek

I would think a high strength loctite would work but comsol would be perhaps better ?

You should be able to use comsol as do not need massive heat unlike silver solder .

Cheer up, I am sure all will be soved for you and it will be fun again.

Bill

Edited By 34046 on 25/08/2019 10:47:07

derek blake25/08/2019 10:59:09
495 forum posts
130 photos

So made up a bronze bolt, and its a tight fit in the hole, i do wonder if 648 loctite would hold this in really well and be just as good as screwing it in?

i can of course try and screw in from inside but I will have to get some tweezer or something to hold them.

3404625/08/2019 11:07:17
772 forum posts
4 photos

Sit tight for an hout or so.

My thoughts are a round head srew in a small holder - ie think of an egg in an egg cup so a small piece of thinwall brass tube say twice the thickness of the screwhead with a thin brass handle soldered to it at the bottom to stop the screw falling through but the tube just large enough to allow the screw to be free to turn when you put the screwdriver to it .

Slot in the screw then in the holder through the hole and line up and then small screwdiver and wind up through hole .

The 1/2 inch hole is big enough

Do you want me to try or shall I leave it to you to have a go ?

Quite happy to try as like a challenge ?

Bill

 

Egg and eggcup anology is the scew is the egg and the holder for it is the cup - hope that makes sense.

 

Edited By 34046 on 25/08/2019 11:09:04

Edited By 34046 on 25/08/2019 11:11:42

derek blake25/08/2019 11:09:37
495 forum posts
130 photos

Bill would you try? I will park what I’m doing for now.

would the screw be made from bronze then I guess?

3404625/08/2019 11:14:45
772 forum posts
4 photos

Derek

I will use a brass 4ba as all I have and only a dummy run but as bigger and can be done then 5ba should be easier.

Off to try now

Look back in later today for an update .

Bill

derek blake25/08/2019 11:18:26
495 forum posts
130 photos

Thank you Bill, I’m just making some bronze bolts just in case

derek blake25/08/2019 11:18:44
495 forum posts
130 photos

Thank you Bill, I’m just making some bronze bolts just in case

3404625/08/2019 11:27:09
772 forum posts
4 photos

Roundheads without a slot in the head. Perhaps make the heads larger than normal as this will increase the seating are on the pad and if too big can be turned down to suit the holder.

Bill

derek blake25/08/2019 11:30:31
495 forum posts
130 photos

Screw

derek blake25/08/2019 11:30:52
495 forum posts
130 photos

I made this, would these work maybe.

3404625/08/2019 12:57:07
772 forum posts
4 photos

Derek

Can be done ok

PM me your landline number and will call to explain how I did it as easier than e-mail for me.

Bit fiddley but it will get you out of trouble

Bill

derek blake25/08/2019 12:59:45
495 forum posts
130 photos

Hi Bill

have PM you

3404625/08/2019 13:15:53
772 forum posts
4 photos

Derek

PM reply sent

Bill

derek blake25/08/2019 14:52:27
495 forum posts
130 photos

Just an update, have now got a stripped thread.

so I’m going to give up on this engine I think, I’ve ruined a good boiler that I waited a year for and can’t see how I can fix myself as I’m limited on skills, knowledge and equipment.

the bolt from inside went in after 2 hours of trying but went very wonky and when removed the thread was bigger so bolt from above now doesn’t tighten.

oh well I guess I did my best on the build, but I hate bridging things and I can’t see a way out that I can do.

3404625/08/2019 15:11:28
772 forum posts
4 photos

Do not lose heart.

Just walk away from it for a week - it is only a set back, nothing more and nothing less, and it can be fixed.

Alternative methods have been suggested such as bushes and any compotent boiler maker could sort easily.

Helen at Western Steam would be my first port of call.

It would be a crying shame to call it a day after all the good work you have put in.

Bill

Edited By 34046 on 25/08/2019 15:12:11

derek blake25/08/2019 15:38:29
495 forum posts
130 photos

I guess I could try and make sure one of these, drill the thread out and make it so I can pull through a bolt with a smooth shoulder, i may even be able to loctite in if make it a nice snug fit, I’m going to walk away for now as I feel very disappointed, sorry I don’t know how to rotate picture

a2787db0-777f-4653-b368-0a57699a264f.jpeg

derek blake25/08/2019 19:42:52
495 forum posts
130 photos

Hi All

i just wanted to say thank you for everyone’s help, I must found very despondent.

i waited a year for the boiler, and I managed to drill the stud holes without problems all fit this strengthening plate to be in the wrong place and ruining what was great.

now I have 3 holes that MAY strip and one that has, and I know you have all done your best to help but it’s still very disappointing.

i did try the inside out fixings but dropped screw three times which took an hour to get out, and when did get one in it went at such an angle it ruined the threads.

so I’m sorry if I’ve sounded a right misery but I just feel downhearted after a year of waiting and I’m worried boiler is ruined. sad

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