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    Turning piston undersize above top ring

    Most of the car engines I have rebuilt over the years do have a smaller dia. above the top ring. The smaller the bore the less the difference. " A " series BMC, about 2.5 in bore usually - .010 smaller. I make my little pistons (1 inch) about 005 smaller. Also makes rings somewhat easier to...
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    Metric Threads on Generic 12x 36 lathe

    Just finished another test piece, YAHOO! amazing what happens when you finally get the set up right. Time to stop beating myself up re.my innabilty to figure this out and get on with the job. Thanks,Jasonb and all other folks for your help. What a great forum. Colin
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    Metric Threads on Generic 12x 36 lathe

    Went and tried Jasonb suggestion but quickly looked at the chart on my lathe and set up with top gear driving 86 tooth then 91 driving lower gear opposite to what Jasonb had posted. Wrong! I will ignore set up as shown in my booklet and set up exactly as Jasonb describes and try again, Thank...
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    Metric Threads on Generic 12x 36 lathe

    Scott: I do not think you are codecending at all; I thank you for your help and concern. A post by Jasonb, post #6 may explain what I am doing wrong. The manual that comes with this machine is very poor in comparison with the Grizzly that Jasonb has posted a link to. I read my book to indicate...
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    Metric Threads on Generic 12x 36 lathe

    Meant to say in last post that I am not disengaging the half nuts but stopping, backing out and reversing as you state Thanks again Colin
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    Metric Threads on Generic 12x 36 lathe

    Thanks Scott. On this version to cut Metric threads the lower gear (input to quick change box ) is replaced with a 60 tooth from the 40 used for Imperial and the upper (drive) gear is replaced with gears 26,27,35,45 or50 tooth from the40 tooth used for Imperial, depending on pitch used in...
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    Metric Threads on Generic 12x 36 lathe

    Recently bought a King 1236 lathe , probably the same as Grizzly or Jet or Precision Machine. Probably sold under many different names in Europe and Australia too. In setting up and trying out my new toy I was going through the different Metric and Imperial threads to check for accuracy. All...
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    Measure internal taper

    Gordon : I made a 5C adaptor for my heavy 10 a few years ago and thought it was morse5 until I recently bought a generic Chinese 12x36 King lathe and found my adaptor did not fit. When I made it, I offset the tail stock using a dial indicator on the plug that holds the SB dead centre as a...
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    1" Bore x 1" Stroke Vertical i.c. Engine

    Brian: I wondered if you had moved the inlet only as the cams are held on the shaft with set screws . That is if I've read the drawings correctly. Colin
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    1" Bore x 1" Stroke Vertical i.c. Engine

    Brian: Did you retard the camshaft or just the inlet cam? Is that crank degrees or camshaft degrees? Would you post a final open-close diagram of the timing. This may be the cure for my poor running Panther Pup variation. Thanks Colin
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    1" Bore x 1" Stroke Vertical i.c. Engine

    Congratulations! Hooray! On to the next. Want drawings ASAP... Colin
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    1" Bore x 1" Stroke Vertical i.c. Engine

    Brian; Been following this build with great interest. Just looked back at the Mar 3 post of installed fan . Is it going to stay together at 7500 RPM ? Assuming 5 in flywheel and 3/4 in fan pulley its gonna be buzzing at 1000 engine RPM. Just saying, Colin
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    Advice on boiler size

    Thanks for the continuing comments and advice on boiler size. You are right K2 ,I do not have the skill or equipment to make my own boiler. As mentioned in an earlier post I have put the Stuart triple aside for awhile to earn some $ restoring a customer's Honda S600 to pay for my NEW 12x36 King...
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    Workaround for low tailstock?

    Not silly at all BaronJ! I have an old worn SB Heavy 10 and have put a strip of 003 shim stock under the flat side to bring the tail stock up to very close to where it should be . When I drill a small hole it is really close to what it is intended to be. Centre side to side after you shim...
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    Hello From Behind The Redwood Curtain

    You are right propclock ,they run better on steam but they will run on comp.air .Check out Keith Appletons videos on You tube .My problem is fiddleing with the timing and valve position enough to get it to run on all 3 cyl.at the same time. Setting the valve position on the IP cylinder requires...
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    Hello From Behind The Redwood Curtain

    Welcome Stuart: I too am working on a triple. Very fussy on valve timing but satisfying when you get it to rotate. Does not run well on compressed air, Mine will run on LP, IP or both of these together but not if HP is connected, Will run on HP alone though. Get back at it so you can tell me...
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    Cx701 lathe report

    Sir John : I too have been reading the horror stories about electronic variable speed machines. I have a 3 year old BB CX 603 mill , belt speed change and no #%!electronic junk. Works VERY well. 270- 3260 RPM 220V 1phase 1.5 H.P. Only changes I made were new North American belts some cheap BB...
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    Advice on boiler size

    Steamchick and fceslop: Great information, thanks. Yes London is only 1/2 hour away and coffee shops on every corner. It's Canada Eh! Winter is going away here too. Was up to 15C here to-day but thats unusual We'll be back below 0C in the next few days. Going to put the Stuart away for a bit...
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    Advice on boiler size

    The triple has 3/4 HP cyl 1 1/4 IP cyl and 1 3/4 Lp.cyl.with a1inch stroke . Steamchick: Thanks for taking the time to look into this for me. Iv'e reached the point with this engine where the valve timing has to be set and lots of other "fiddleley bits" made. Spring and other projects are...
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    Advice on boiler size

    Thankyou Steamchick and fcheslop. Very good advice. If my computer would let me download those files it would no doubt be better. Just one question. What the devil is a Mamod? Thankyou very much. Colin
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