395XP broken flywheel bolt

[Husky187]

So to start off I noticed that near the oil adjustment screw it tended to be weeping oil from the general area, so I figured simple fix, pop the clutch off, pull the oiler and check the seals. Unfortunately it turned into a nightmare. I initially tried the rope technique into the piston while wrenching on the clutch but no go after several attempts. Then I noticed the 13mm nut on the flywheel and figured that a littler opposite but equal force should have this clutch off in no time. Again no luck and just when I thought I felt give, snap the bolt breaks loose.

Basically is this now the process of having to go and swap out the entire crank in order to get the threads for the flywheel to be properly affixed again? It seems like the only solid fix, considering welding it on would just band-aid it, and I also wouldn't feel too comfortable with the better part of 12k+ rpms spinning around there. Any info from the community would be greatly appreciated, as well as why my darn clutch wouldn't budge coming off. Picture posted below of the damage.

Is it worth me taking on to try and rebuild it or should I just try and cut my losses and see if anyone has an available 395xp to trade. This saw is in very good condition. If anyone is interested in buying or trading I'd be more than happy to upload some pictures of it. Thanks in advance. Also if it looks familiar from another forum... I'm just looking for a second opinion.

 

[Mark71gtx]

Replace the crank. Other than parting it out, that is your only viable option. You know the clutch threads are left handed, correct? Piston stops are cheap, order yourself one, it will make life easier when removing flywheels and clutches.

 

[Mark71gtx]

Disregard the left hand thread comment. You were obviously turning it the right way if you broke the crank bolt. Look in the classifieds here. There is a thread titled "saw parts, you need em I got em" or something along those lines. He has 395 parts. I just got some parts from him for my 395.

 

[srcarr52]

Replace the crank. Other than parting it out, that is your only viable option. You know the clutch threads are left handed, correct? Piston stops are cheap, order yourself one, it will make life easier when removing flywheels and clutches.

I've seen too many dented piston domes from steel or aluminum piston stops. The best ones are the plastic slip in style ones or using the rope trick.

 

[Duce]

New crank, but I do remember a guy on ebay using JB weld.

 

[panteliss]

So to start off I noticed that near the oil adjustment screw it tended to be weeping oil from the general area, so I figured simple fix, pop the clutch off, pull the oiler and check the seals. Unfortunately it turned into a nightmare. I initially tried the rope technique into the piston while wrenching on the clutch but no go after several attempts. Then I noticed the 13mm nut on the flywheel and figured that a littler opposite but equal force should have this clutch off in no time. Again no luck and just when I thought I felt give, snap the bolt breaks loose.

Basically is this now the process of having to go and swap out the entire crank in order to get the threads for the flywheel to be properly affixed again? It seems like the only solid fix, considering welding it on would just band-aid it, and I also wouldn't feel too comfortable with the better part of 12k+ rpms spinning around there. Any info from the community would be greatly appreciated, as well as why my darn clutch wouldn't budge coming off. Picture posted below of the damage.

Is it worth me taking on to try and rebuild it or should I just try and cut my losses and see if anyone has an available 395xp to trade. This saw is in very good condition. If anyone is interested in buying or trading I'd be more than happy to upload some pictures of it. Thanks in advance. Also if it looks familiar from another forum... I'm just looking for a second opinion.

welded and make new threads this part have nothing to do with the centering of the flywheel or something it just for keep the flywheel and nothing more

 

[Duce]

welded and make new threads this part have nothing to do with the centering of the flywheel or something it just for keep the flywheel and nothing more

That nut holds flywheel on by a pressure fit. If it's not torqued down, that flywheel will spin off or strip molded key on flywheel. Seen it more than once.

 

[panteliss]

That nut holds flywheel on by a pressure fit. If it's not torqued down, that flywheel will spin off or strip molded key on flywheel. Seen it more than once.

better explaination

weld a new piece of iron then to this piece of iron you make new threads then you put a new flywheel nut for hold the flywheel

sure its not very easy and need work but you can do it

 

[Husky187]

I believe I'm gonna be going the route of dropping in the new crank. I'll probably be posting a wanted ad here soon in the appropriate forum. As far as splitting the case, are there actual specialty tools for it? Also does anyone have the torque specs on everything that gets opened up and a part diagram manual for a 395xp would be great? Does anything need to be greased when dropping it in. Sorry for the million questions, just want to be totally prepared for what I am getting my self into. Thanks.

 

[Mark71gtx]

You will need a crankcase splitter. Many people get by without one, but they are a good tool to have. Go ahead and replace bearings and seals while it is open. I always coat the piston, cylinder, and bearings with some 2 stroke oil before assembly. I like to put Motoseal on the outer edges of the crank seals to make sure they don't leak.

 

[Mattyo]

I have vids on my youtube channel for doing a rebuild on a 394, which is similar. The bearings will need to be put in by either a press, or by heating up the case. Though I don't think I have bearing replacement vids for the 394/395 .... I'm pretty sure I show how to do it for other saws....372, 346xp ... so you can see how to do it. The 395 will be fairly easy in that respect.

contact BPLUST here on this forum if you need a part... he likely has it.

You can make case splitters ....or buy one. Up to you. Again, search around in my vids.... lots of info there.

 

[srcarr52]

I think this a really low hours saw, there is no need to replace the bearings. If you're careful you could even save the seals but you'll need to use a pick to get the seal over the lip in the crank when assembling. Best bet would be to use a husky type splitter that leaves the bearings in the case. Then you just heat the inner race a little with heat gun for reassemble.

That crank could be welded and rethreaded or drilled for a bolt but both will still require removal of the crank and some lathe work. A very skilled person could drill and tap for a bolt without removing the crank.

To the OP. If you don't feel up to the task I would be interested in purchasing the saw or I can repair it for you.

 

[panteliss]

I believe I'm gonna be going the route of dropping in the new crank. I'll probably be posting a wanted ad here soon in the appropriate forum. As far as splitting the case, are there actual specialty tools for it? Also does anyone have the torque specs on everything that gets opened up and a part diagram manual for a 395xp would be great? Does anything need to be greased when dropping it in. Sorry for the million questions, just want to be totally prepared for what I am getting my self into. Thanks.

 

[Mattyo]

YEP, those are ALL the tools needed ... wow.

 

[Glock37]

You will need a crankcase splitter. Many people get by without one, but they are a good tool to have. Go ahead and replace bearings and seals while it is open. I always coat the piston, cylinder, and bearings with some 2 stroke oil before assembly. I like to put Motoseal on the outer edges of the crank seals to make sure they don't leak.

heat is your friend if you don't have a press heat the case half up with a heat gun the crank and bearings with slide right out of case

you'll need a bearing separator puller to get bearings off crank but you 'll be getting new bearings and crank anyway install in reverse order

 

[panteliss]

YEP, those are ALL the tools needed ... wow.

Nope you need only this

 

[CR888]

Sometimes we need assistance from a specialist, this situation appears to be one of those times. If your replacing the crank you could do it yourself, if its a lot cheaper to repair it I'd be talking to Scarr52 & involving the right person for the task. Good luck.

 

[Husky187]

Thanks for all the information guys. I'm going to do some more search and check out the recommended videos. It is a very low hour saw, I believe it a 2012 and the bottom sticker is still on it with minimal use. scarr52 watch for a pm from me. Thanks again.

 

[Mattyo]

rebuilding one of these isn't THAT bad... they are pretty straight forward saws, especially the ones that are low hours. however, nice to have someone who knows what they are doing replace a crank... Scarr can do that for ya.... he's the man w/ 395's so I hear