I would be interested in watching you show a step by step process of one of your mcculloch rebuilds...just my opinion! Awesome videos...Hope everyone is healthy and doing good!!
Next time I do a rebuild, I'll try to make it a bit more detailed. FYI - I just posted a video from yesterday using this SP81 on a big oak. Runs like a champ. Check it out. Thanks for watching and commenting.
Thank you yet again! I have one of these with a wiped cylinder, going to send it out for (re) plating. Mac's are going to be a part of life this year, getting ready for a gtg with a friend doing some work with nothing but yellow power. Have a PM700, a couple of 660/650 gear drives to get running and some others. But hoping to short term get a PM700 to go along with the 660. THEN th e 81..:) excellent information and I really appreciate to time & effort you have in these.
Thanks for watching. I picked up a PM700 in excellent condition that required virtually no work to get it running great. Let me know how your rebuilds go.
Just found one of these in a barn family purchased.. got compression and almost everything’s there. Just missing the pull cord and the cover for it.. Hopefully get er runnin and put it to good use soon
IMO the SP81 is one of the best saws McCulloch made. Light and lots of power. You should be be able to find a starter housing. Very very worth the effort. Plus the sound is awesome! Good luck - keep me posted.
@@elwellboy already tryin to hunt down parts.. gotta pull it apart and clean it up. probably get a new bar for it too. do a compression test on a cooler day and go from there. whoever left it there was nice enough to drain the tank. so no gummed up fuel system. thats nice
Enjoyed your vid was hoping to see you press the piston and rod together and to see you install the seals have any of your other vids included these processes. As for the scoring I have seen that on a few 10 series and found what I believe is the answer on a promac 850 carbon in the exhaust port I removed the muffler to find two lumps of carbon in the port and matching scoring on the piston just my two bobs worth thanks again for the vids
Glad you found it helpful. Unless the piston needs replacing I rarely disassemble the conn rod and piston. There are a couple other vids you might find helpful. I have one rebuilding a Mac 2-10 (rings & seals) and a 6-10 rebuild that I believe show seal installation. As I note in one of the videos, the small seal is too fragile to drive/press in so I put it on the crankshaft as I assemble the cylinder/crankcase halves. I think you're right on the carbon lumps. I always check/clean (usually with a dremel tool) the exhaust port to get any carbon crap out. Hope this helps. Thanks for watching and commenting.
When you rebuilt this sp81 did the used piston match the cylinder? I know they had a A,B, and C pistons/cylinders, I want to rebuild mine but the piston I have doesn’t have the same letter as the cylinder, just curious what you did
You know I don't think I even checked. I miced the sizes for old and new to make sure they were the same all around included the piston deck and skirts. They were the same so I used the new one. Make sure you orient the piston correctly to the exhaust port. I've made that mistake once. Fortunately I caught it before I buttoned things up. Just a careless thing when not paying attention. Good luck with your rebuild. Love the SP81. Thanks for watching and commenting.
I have several that I would be willing to sell. Do you have a particular model that you might be interested in? You can email me at - elwellboy@gmail.com - Thanks for watching and commenting.
G TW I assume you mean Titan 70 - I’m not real familiar with those - I believe those were after Mcculloch was sold and they began building the titans in Italy. They went from a horizontal motor configuration to vertical configuration. You should be able to find some info by just doing a google search. If I remember they did a 100 cc version of the titan that was a fast saw. Good luck- thanks for watching and commenting
Did you seal the bearings to the top/bottom with the dirko as well? I can't imagine it could seal well without some sealer all around the bearings when assembled as well? Nice job btw, I enjoy your Mac rebuild vids.
Glad you enjoyed the video. No I did/do not use Dirko around the bearings. They are basically press tight in the crankcase so don't think Dirko is necessary. Iv'e never had any problems. I've got a number of old Macs awaiting rebuild - just need to get to them. Thanks for watching and commenting.
I would be interested in watching you show a step by step process of one of your mcculloch rebuilds...just my opinion! Awesome videos...Hope everyone is healthy and doing good!!
Next time I do a rebuild, I'll try to make it a bit more detailed. FYI - I just posted a video from yesterday using this SP81 on a big oak. Runs like a champ. Check it out. Thanks for watching and commenting.
Thank you yet again! I have one of these with a wiped cylinder, going to send it out for (re) plating. Mac's are going to be a part of life this year, getting ready for a gtg with a friend doing some work with nothing but yellow power. Have a PM700, a couple of 660/650 gear drives to get running and some others. But hoping to short term get a PM700 to go along with the 660. THEN th e 81..:) excellent information and I really appreciate to time & effort you have in these.
Thanks for watching. I picked up a PM700 in excellent condition that required virtually no work to get it running great. Let me know how your rebuilds go.
Good work 👍👍👍👍👍
Glad you enjoyed it. Thanks for watching and commenting.
Just found one of these in a barn family purchased.. got compression and almost everything’s there. Just missing the pull cord and the cover for it..
Hopefully get er runnin and put it to good use soon
IMO the SP81 is one of the best saws McCulloch made. Light and lots of power. You should be be able to find a starter housing. Very very worth the effort. Plus the sound is awesome! Good luck - keep me posted.
@@elwellboy already tryin to hunt down parts.. gotta pull it apart and clean it up. probably get a new bar for it too. do a compression test on a cooler day and go from there. whoever left it there was nice enough to drain the tank. so no gummed up fuel system. thats nice
Hi thanks keep good work up have a nice day
Still runs like new. Thanks for watching and commenting.
Enjoyed your vid was hoping to see you press the piston and rod together and to see you install the seals have any of your other vids included these processes. As for the scoring I have seen that on a few 10 series and found what I believe is the answer on a promac 850 carbon in the exhaust port I removed the muffler to find two lumps of carbon in the port and matching scoring on the piston just my two bobs worth thanks again for the vids
Glad you found it helpful. Unless the piston needs replacing I rarely disassemble the conn rod and piston. There are a couple other vids you might find helpful. I have one rebuilding a Mac 2-10 (rings & seals) and a 6-10 rebuild that I believe show seal installation. As I note in one of the videos, the small seal is too fragile to drive/press in so I put it on the crankshaft as I assemble the cylinder/crankcase halves. I think you're right on the carbon lumps. I always check/clean (usually with a dremel tool) the exhaust port to get any carbon crap out. Hope this helps. Thanks for watching and commenting.
When you rebuilt this sp81 did the used piston match the cylinder? I know they had a A,B, and C pistons/cylinders, I want to rebuild mine but the piston I have doesn’t have the same letter as the cylinder, just curious what you did
You know I don't think I even checked. I miced the sizes for old and new to make sure they were the same all around included the piston deck and skirts. They were the same so I used the new one. Make sure you orient the piston correctly to the exhaust port. I've made that mistake once. Fortunately I caught it before I buttoned things up. Just a careless thing when not paying attention. Good luck with your rebuild. Love the SP81. Thanks for watching and commenting.
Would you ever sell any old macs
I have several that I would be willing to sell. Do you have a particular model that you might be interested in? You can email me at - elwellboy@gmail.com - Thanks for watching and commenting.
Hi whot is the points gap setting on a mini Mac please
G TW I set the points at .018 when fully open and that works fine
You know I always just use a open end wrench to loosen those crank case bolts
I've found that an open will slip and won't get the bolts as tight as a socket. Thanks for watching and commenting.
Hi do you know anything about the mcculloch Titan 7 Chainsaw’s top handle i can not find anything about them on TH-cam
G TW I assume you mean Titan 70 - I’m not real familiar with those - I believe those were after Mcculloch was sold and they began building the titans in Italy. They went from a horizontal motor configuration to vertical configuration. You should be able to find some info by just doing a google search. If I remember they did a 100 cc version of the titan that was a fast saw. Good luck- thanks for watching and commenting
Did you seal the bearings to the top/bottom with the dirko as well? I can't imagine it could seal well without some sealer all around the bearings when assembled as well? Nice job btw, I enjoy your Mac rebuild vids.
Glad you enjoyed the video. No I did/do not use Dirko around the bearings. They are basically press tight in the crankcase so don't think Dirko is necessary. Iv'e never had any problems. I've got a number of old Macs awaiting rebuild - just need to get to them. Thanks for watching and commenting.