problem getting bolts out of gear case

[stairliftoheaven]

I'm trying to get the 8 bolts out that hold the powerhead onto to the gearcase. Got 4 of em out but the the other 4 aint goin nowhere, heads rounded and rusty. Not been out in 19 years i think. Gonna try and drill the heads off then remove the remainder when the powerheads on the bench. Before I do that, anyone got any other suggestions? Motor is 1985 rude 60 twin, BE60TLCO I read an earlier thread where this guy had thought of putting stainless studs back in and nyloc nuts instead of bolts. I think thats a good idea and am gonna do that when it comes to reassembly.<br /><br />thanks<br />chris

 

[OBJ]

Re: problem getting bolts out of gear case

Harsh language Chris....and lots of it. Being in the UK, I would venture to say the engine has seen some salt? During reassembly, coat the bolts with a gasket sealing compound. This will help prevent future corrosion. <br /><br />The studs sound like a good idea. Don't know why it wouldn't work. It will also help to chase all threaded holes out with a tap. Will make reassembly a lot easier.

 

[petrolhead]

Re: problem getting bolts out of gear case

<Gonna try and drill the heads off then remove the remainder when the powerheads on the bench. Before I do that, anyone got any other suggestions? ><br /><br />I think that's the way I'd do it, remove the remaining shank with a pair of molegrips, but carefully as it's quite likely to shear as my water pump screws did (it was me that replaced the screws with s/s studs BTW). I would try to get a bit of heat on them first.<br />If they do shear off flush you can carefully drill them out until there's just the thread left, you'll need a drill press to do this accurately, then pick out the remainder with a sharp implement.

 

[stairliftoheaven]

Re: problem getting bolts out of gear case

yep this one's certainly seen salt lol, even with the bolt heads drilled off i think I'm gonna have a job seperating the powerhead. will have to get hold of a good floor crane. thanks for that pertrolhead i'm learnin fast here! <br /><br />have a good evenin everyone!<br /><br />regards chris