for table mechanic/s

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gmillioni

AzB Silver Member
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is there a torque value recommended for tightening t-rail bolts on an old brunswick? is there something you use to keep the bolts from loosening? also are washers necessary to put behind each bolt?..
gerald 901 412 9618 gmillioni@yahoo.com
 
gmillioni said:
is there a torque value recommended for tightening t-rail bolts on an old brunswick? is there something you use to keep the bolts from loosening? also are washers necessary to put behind each bolt?..
gerald 901 412 9618 gmillioni@yahoo.com
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The use of washers behind the head of the rail bolts helps to stop the head of the rail bolt from drilling into the wood rail liner. If you don't stop that process what'll happen is you end up running out of rail bolt anchor to tighten the rail bolt to because there's no where for the threaded end of the rail bolt to go...if the head of the bolt continues to drill the rail. Then if you want to keep the rail bolts tight, place a 5/8" lock washer between the head of the bolt and the added washer, that'll keep tension on the bolt at all times. The reason the bolts keep coming loose is because the wood is giving into the pressure of the head of the rail bolt, crushing the wood fibers even deeper. Ever notice that hole where you run the rail bolt into....and wonder how it got there?;)

Glen

PS. You're going to have to look for fender washers to fit the size of the head of your rail bolts.
 
Some tables made today still use t-rail design and are considered by some the best banking tables around.
 

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OTLB said:
http://www.verhoeven-biljarts.be/

you can contact them for questions and they are relevant and probably the best source for this question.
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John,

two inch plus slate, one thousand pound frame, offset going into the frame and slate at 45 degree angles on the vertical face, is not a relevant comparison to a T rails on a pool table. It's certainly not relevant to the question posted, and that particular attachment system is available only on carom tables. One other thing, their are 58 bolts holding those rails.

Jay
 
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do they use washers on their rails? I thought they could also provide info on torque settings. I will contact them for their opinion or maybe you can Jay as I would think they can contribute relevant info here.

I am not stewpid hahaha and know these tables are not even close but we are NOT comparing tables just a system of attaching a bolt.

The number of bolts per rail is not relevant. Do they use washers and how tight they crank them is IMO and thats the jist of my pic. You guys should know by now that my way of communicating is more clue based.

I already PM'd on his first questions on which washers to use to prevent problems. I don't see anyone else with the answer.
 
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Why would a Dutch table manufacturer be the best source for questions about an antique Brunswick? Just because they use a T rail system?

Would a Mercedes dealer be the best place for questions about a Chevy? I mean they both make a V8 how different could it be.

Just because you don't see anyone else with the answer doesn't mean you have to clutter the thread trying to make one up
 
Hi Gerald,
How have you been? I am greatly looking forward to getting down to Memphis to visit my dad again over the summer, maybe you can come by? About the bolts, I vary the torque mostly based on feel. The adjustable spanner is a PITA even though I modified on to use on a ratchet. As a ball park I would say between 10-25 ftlbs of torque would be normal, as long as the rail sits squarely on the edge of the slate. Any twisting would require a specific torque sequence just like installing a head on an engine. Give me a call if I can be of help.
Rob

gmillioni said:
is there a torque value recommended for tightening t-rail bolts on an old brunswick? is there something you use to keep the bolts from loosening? also are washers necessary to put behind each bolt?..
gerald 901 412 9618 gmillioni@yahoo.com
Click to expand...
 
torque and washers

thanks for the responses. two were most helpful. i'll try the fender washer with the lock washer because yes the bolt is bearing into the wood and maybe the end of the bolt is hitting the end point of the threaded inset. so that may help. and the torque value is helpful because i have been nervous about over-tightening and fracturing the slate or pulling the threaded inset loose. i usually just tighten by seat of the pants experience with auto engines. from my lack of knowledge and experience comes these questions.

gerald

ps. yes table tech (rob). would be great to have you by. maybe we can recover at that time. since youve seen and played the table tell me what you think would be good for cloth. currently have the simonis 760 but i'm thinking of using the tour edition 3030. ive played both in addition to 860 but just wondering what you think. i play everything on the table, not committed to any particular game or skill level.
 
Sounds good, I will contact you once I schedule with my Dad. I am still a fan of Simonis 860, though it seems many rooms are switching to the 3030. I would advise against 760 unless you are going to be playing a lot of straight pool because it wastes spin for stroke based games like 9 ball. The 760 sure does make clusters easier to break open though! Anyways, we will see what is going on when I come down. I would like to take care of the shim work for you if we do recover. Talk to you in a month or two. Thanks
Rob
 
torque

Think of a aluminum wheel on a car bolted with steel lugs and studs..if the lugs are not mechanically or digitally limited by a torque wrench to say 100 ft/lbs per stud in a star figure to distribute the torque evenly there is a good chance that wheel lugs will come lose do to improper torque with a small amount of vibration...
Also try a combo of steel and brass threads together on water lines or fuel lines and see how well they do not seal..
..
I was told by a old school brunswick mechanic that had done table work with Al Conte and they torque the GC rail bolts to 15 ft/lbs..
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Hope ya catch my drift..
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Rob.M
 
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