Author Topic: pro mac 570  (Read 314 times)

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Offline pete

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pro mac 570
« on: August 24, 2014, 08:43:32 am »
got one of these on ebay recently think I posted got a bit burned. Anyway worked out a redneck fix for the missing bar stud. Previous owner stuffed a stud so he chiselled. away enough of the casting inside the oil tank that stops the square headed bolt from spinning.
Been peeved about this purchase for a few days and could not think of a way to fix it without replacing lower clam shell/oiltank until this afternoon
Got a heap of 10 series stuff so I am going to cut off another stud at the head and then weld it to the head of another stud side by side this will then have enough length to  get back under the casting. Pics will follow when i get the cd for my camera loaded onto this computer,tried tonight but windows kept telling me computer does not recognise plug in.

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Offline sharkey

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Re: pro mac 570
« Reply #1 on: August 24, 2014, 06:05:32 pm »
Pete,
Im not real familiar with the PM 570, but if it is like other Mac's of its time, it should have 5/16 bar studs?  Echo also uses a 5/16 bar stud with a square shoulder, more like a rectangle which along with some epoxy seats them to the case.  We have a couple of the Echo style bar studs here if you want some measurements and/or a pic to see if these might work for you let me know.

Offline pete

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Re: pro mac 570
« Reply #2 on: August 25, 2014, 03:40:09 am »
Got plenty of studs thanks for the offer though. The problem was Previous owner chiselled away the casting that stops the square heads from spinning when undoing and tightening the bar. Got it sorted today cut down another stud welded the head alongside another one in effect gives me a rectangular head stud that reaches into where the P.O. had not damaged pics will come

Offline pete

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Re: pro mac 570
« Reply #3 on: August 29, 2014, 08:46:13 am »
hope these show the fix screwdriver points to the removed metal next shows the double headed stud and last should be stud in place

Offline sharkey

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Re: pro mac 570
« Reply #4 on: August 30, 2014, 10:39:48 am »
Looks like you got it.  Good Job!

Offline pete

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Re: pro mac 570
« Reply #5 on: August 31, 2014, 08:44:16 am »
Thanks yep all good a little permatex on the unthreaded section as I slid it into place and bingo no oil leak

Offline mowertech

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Re: pro mac 570
« Reply #6 on: September 03, 2014, 02:35:13 pm »
Pete is the part  number  for that stud  62065  ?  Happen to have 12 on hand if you know anyone needing any  buy 2 get 1 free  i am running that special for  a  Week 
For your  Obsolete Homelite  , McCulloch , Echo,
Poulan  Parts  visit us at  http://www.smallenginechainsawparts.com

Offline pete

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Re: pro mac 570
« Reply #7 on: September 04, 2014, 03:50:24 am »
yep thats the part number checked some Ipls same part number from 1 10 1970 through pro 10 10 1976


 I am after the following part # they are a kit used to help stop the single screw mounted oil pump in the later 10 series from letting bar oil suck into the crankcase
I found 1 by accident in a late model parts saw hope to use it to cure my promac 850 from smoking if this doesn't work I will try patches :D
 kits 215246,