cyl. stud cap "stucker" than usual

[turboguzzi]

God knows i've done a few guzzis in my life, but this stud cap looks stuck more than others before.

Your smart approach before going for destruct and replace? :)

tnxs!

[turboguzzi]

well, they always say step out of the workshop and take a thinking break, right?

Works

Gave it a few serious blows dead in center with this bad boy drift and it unscrwed like a good boy

[Tom H]

You might try a manual impact driver.





Tom

[Huzo]

If I’m seeing this correctly, the stud just unwinds normally with the Allen wrench ?
If so, I would start by heating the bolt to get it to expand (lengthen), thereby releasing some of the grip tension. If that did not work, I guess I’d ultimately drill into the hex at the stud size until the head came off.
BTW..
That gasket face looks a bit rugged doesn’t it ?

[n3303j]

...and for some reason those things like to get stuck. Just did rings on my T3 so that means I get to pull that thing about 5 times in 1,500 miles (about 6 weeks). And it was tight every single time! It has an O Ring seal so I don't crank it down hard. But it's always a battle to remove it. The "break away" torque is outrageous. I do have a STIFF hex head socket and a STIFF 1/2" breaker bar so everything does loosen up. But it certainty requires far more effort to remove than it did to install.

[pehayes]

Doesn't sound too abnormal.  I  have been required to use an air impact wrench on occasion.
Patrick Hayes
Fremont CA

[bmc5733946]

Turbo that's how I've dealt with them from the get go. I don't even try before giving them a great wallop, sometimes I use a punch, sometimes just a hammer. Sometimes I even smack the allen wrench socket right on the head!

Brian

[turboguzzi]

did my first post after trying with long lever, impact wrench, hand / electric, this one felt tighter than im used to, didnt want to risk major headaches....

heat would have required quite a bit of clearing around, emptying a full tank right next for safety and removing it too... but would heat work? cap is steel, head is alu, heating could actually increase clamping in my book....

problem with these caps has always been that they grip over the large diameter edge, so always have this very high, silly breakaway torque, and then suddenly release, its never a frozen thread,

was thinking that a few well supported blows will simply deform a bit that lip, and it worked.... a few ways to skin a cat i guess :)

seems that peter and n3303j been through that too.

@huzo - gasket face clean as a baby's face, this 83' SP has all of 12K miles, im the second owner, guess valve cover has been opened maybe 2-3 times in its life

@peter, good to see you here too.... didnt end up buying that falcone ""sport""

[turboguzzi]

Turbo that's how I've dealt with them from the get go. I don't even try before giving them a great wallop, sometimes I use a punch, sometimes just a hammer. Sometimes I even smack the allen wrench socket right on the head!

Brian

thanks for the confirmation!

[Tom H]

If you don't like the allen/hex head version. The nut style and a crush washer from a Loop for instance fits and you don't have to worry about the allen slipping.

Tom

[Huzo]

You’re obviously ok now, but another thing is to get a high quality Allen wrench and cut a suitable piece off, then insert that into a six sided socket.
Then you can attach the socket to a breaker bar or rattle gun…
Also.
The heat would indeed swell the head as you say, but would also travel down the stud and grow its length by a greater amount.
But anyway, you got there…

[turboguzzi]

used to do the cut allen key in my penny less guzzi youth....

nowadays its a proper 1/2" drive bit, long enough to do also the stud nut under the cap

highly recommended!

[turboguzzi]

If you don't like the allen/hex head version. The nut style and a crush washer from a Loop for instance fits and you don't have to worry about the allen slipping.

Tom

interesting, will have a look

now that im thinking of it, just putting there a copper washer might make this easier to release next time aorund, wont "grip" like alu maybe.

[Frenchfrog]

a good lashing of copperslip too !!!!!!!!