Recent content by mic

we have the same problems, using a brake hone was the cause of my problems. the hone is to short for length of bore.if you used lapping compound on a long tube after using the brake hone it would take a fair bit of time to get all the bore dead true again, try using coarse then changing down to...

hi i made this engine a few years ago and had the same problems, finally worked out that the bore length was to long for the hone length. which made the bore not dead true and bypass of the rings, decided to find longer hones and gave up as cost to high for commercial, its sitting under the...

hi HwwKww1 Ce 1440E precision high speed lathe made in Taiwan, swing over bed 330mm. between centres 1metre BM-30A turrent mill both these machines are large for model machining but i do a lot of work for the locals here on a wide variety of tasks, hence the size both are fitted with DRO, as it...

hi attached V4 howell manifold drawings, used cast iron for material as aluminium does not solder and when i used loctite it failed when running, sucked air through mic

hi have plans available for intake and exhaust manifolds from billet material.

hi talked with the sunen man and found that it is ratio of length of stones to bore length that is a major part of true bore. i can hone a v4 howell bore reasonable with brake hone but a atkinson diferential cylinder is 5" long this is where i had bad experience with brake hones. so if i get a...

hi will go sunen, your Hodgson 9 cy radial was that the one i saw at minitech a few years ago. was impressed with the quality mic

hi thank you all for info, did try brake cyl hones but found not quite true enough consistently, sunen i shied at price and missed the p180 size but will get a quote and go that way as much as the price will hurt i like the accuracy and true bore first. mic

hi live in australia and its difficult to get some things here, trying to locate a good cylinder hone for small bores 3/4" to 1 1/2 or there abouts any suggestions welcome. have looked at ammco but start to big mic

hi i found that you must stick to the plans 100%, every time i did not quite fully understand or new better, had to remake back to plans. crank shaft centre bearing must run smooth no tight spots or will come loose, the distributor needs a lot of thinking to understand how it works in all with...

hi finished the v4 some time ago, it runs but not as smooth as i would like. still tweaking distributor problems and fuel pump mic

swifty thanks. used sketchup to profile 40 degrees and 45 degrees, not sold on spark advance but keeping my mind open. not getting magnet repusling so 40 degree does not work, just don't understand why he has it on drawing and noted with explanation as well. will machine new magnet rotor to 45...

hi howells V4 sheet #61 of jerrys drawings show rotor disc with magnets offset by 40 not 45 degrees, however when timing set to top dead No 1 cylinder, No 2 &4 cylinder fires 5 degrees early. am saying it should be 45 not 40 degrees as am not getting the magnets to repulse each other at 40...

thanks for replies, went back to v4 and found that rotor disc and magnet disc are not staying in position allowing the rotor disc to just miss when coil sparks in one direction ie a bit of back lash in the mitre gears. so will rework these items mic

hi have v4 completed, however the plugs will only spark when rotation is clockwise at the flywheel, spark is good and timing correct when clockwise. the engine is designed for anticlockwise rotation. the hall effect is lighting up ok, have checked wiring etc. any ideas mic