Search results for query: *

You're pretty much SOL in that case unless you normalize it first then reharden .

Old trick on keyways for the amature machinest .Take an old tap,grind the teeth off one fluke ,leave about a 7-10 degree postive rake on the very end .Take that thing and use it as a brooch in a drill press ,mill or whatever to cut the keyway .You just use the quill as kind of a light duty arbor...

You have to use some pretty good steel for a spur gear ,I think it was either 4140 or A2 that I used for one of the Macs and heat treated to boot . It has to be around 55-60 Rockwell C .Too hard it breaks,too soft the chain drivers cut it up like butter .

Well you're not going to use that saw that much anyway .If it's sharp you might not need a file job again for a long while .On that I have a loop of Stihl .404 chisel on a Mac super 44A that I've never filed in 7-8 years because that saw sees very little action .Those old Macs if you fire them...

Indeed most of them were 1/2" chain but they made a .404 spur for them which few ever used .It's a rarity to even find one of those spurs . As far as the Macs they are just about the easiest saw ever made to work on .Nothing really ever goes bad on them except maybe a set of points needs...

I was incorrect on that .404 chipper .I just retrieved a NOS loop of 1/2" chipper from my garage still in the Homelite box .404 chipper is in fact 25 thou and 1/2" is indeed 35 thou as per directions on that box . It would most likely be best to keep it at that 25 thou but keep in mind it's a...

You could hit it a lick with a Dremel then go back over it with a file if you wanted to .. I can't remember off hand the depth gauges /rakers but 30 thou kind of sticks in my mind .BTW it's 35 thou on 1/2" chipper .You get it sharp that thing will cut .

Assuming that chain GAS has on that thing is chipper ,it doesn't have much back taper on the tooth . I suppose you could use a smaller file when it gets worn about half way back but I doubt it would help much . What you would end up with is a smaller gullet that would not hold the amount of...

The picture looks like chipper but it's hard to tell .If it is sharpen that stuff all the way down to the tie strap and on soft green stuff it will pull fluffy chips about 2 to 4 inchs long .Looks weird .Rolls them up and spits them out like a wood planer .

It might be chipper chain B. That would be the only difference, same file size .

Hmm ,could be several things . I doubt you are over running the carb so that's out . It could be the transfers aren't allowing enough transfer .They say you need the increased area in the transfers for sustained high speed .To be quite honest about it I have no idea how much of an increase you...

That flat back carb has a big enough metering diaphragm to run a small motorcycle . If it is a tad stiff try lifting the fuel lever just a tad bit but not too much else that thing will flood in a heart beat . Once you get it to stay running that diaphragm might limber back up again ,you never...

You would be totally amazed at the amount of people that attempt to work on those old Macs but screw them up . They have got to be the easiest saws ever made to turn a wrench on .With the exception of those infernal Mini Macs . Those could make a preacher cuss .:what:

Yep on the 797 ,fact is I have about any ever made but some are on micro fitche and I have no way to copy them . The flat back is a Walbro and a chore to find parts for and then at 50 bucks a pop to boot if you do find a kit . If the innards are stiff try soaking them in brake fluid for a...

Of course you can .I don't know if I have that one copied or not .My damned flatbed is busted and I haven't replaced it but somewhere I have a disc in PDF if I can find it . PM me an E-mail and I'll get it as soon as I can .

I'll have to get the camera out some time and submit some pics of Mac bars .I've got some really ornate ones . Some have geese,some have McCulloch in long ornate lettering.Many are galvanized . One doesn't have an oil hole and I have no idea how the bar was lubed on that one .

I wasn't even knowledgable they even offered it in .404 until I looked at the IPL of the 640,you lucked out . Unfortunately one of those I don't have . Offer is still good though,I can carve one out on the mill when I get a chance . It will take me some deciphering to figure out the pitch...

Yes it's heavy and doesn't shake too much .

Say I just looked up the IPL of that thing and it lists a .404 sprocket as an option . This is one of the very few Mac gear drives to do so as most were 1/2" .

Get it running and I'll send you a sprocket if you can't find one .