WBXmayo

[Oldiebut goodie]

To be honest I don't know sniffo,

[Smiffo]

That all looks minging in there...

Rather you than me Itchy..!!

[itchyfeet]

To be honest I don't know sniffo,

You know I honestly didn't mean to write that m and n next to each other on keyboard, bet you get that alot.

You can tell when OBG has been on the Tramadol, everything is funny

[Smiffo]

To be honest I don't know sniffo,

You know I honestly didn't mean to write that m and n next to each other on keyboard, bet you get that alot.

Elvis did it last time..!!
Was gonna find an avatar to match - bit too family 'unfriendly' though

[Ian Hulley]

Receipt says VEGE but that's a garage receipt, no official receipt from VEGE so could have been anybody who did it (10 years ago)

Yes, it was the same with my mate's engine ... receipt from a garage for a VEGE engine with a recorded 250 miles since fitting ... the owner had shuffled off his mortal coil and his wife left the van on the drive to rot away. Justin bought it for the engine given the receipt and lack of miles but the van and the engine was a write-off. The cooling system was blocked with strands of light blue silicone One bank of barrels had 'Good side' written on them in permanent marker pen and there was other assorted bodgery which had occurred to one head .... so much for the total recondition.

[itchyfeet]

Garages receipt is not proof in my book that this was agenuine VEGE recon
Garages probably buy from some middleman who may have told them what they want to hear.

How often do you see OEM describing parts that clearly are not.

[Ian Hulley]

The blue silicone of doom is a common and recurring find though

Ian

[itchyfeet]

I have found it in three engines now but always clear silicone, you are right it's bad news.

I'd still like to hear ideas on how a stud just snaps?It wasn't rotted through.

[kevtherev]

My take is, it's under enormous tension, but without even tension, (like this stud got over torqued) the stud will flex/stretch more than its specified value.
This would result in metal fatigue over time and ultimately a fracture would develop across any flaw, the tension would accelerate this process.

[itchyfeet]

Ok so perhaps the silicone is acting as a lubricant reducing friction and increasing the stresss on the stud when the torque is reached.

Lubricated threads need a lower torque for the same stress on the stud

[Ian Hulley]

The blue stuff I've found always seemed to be in lieu of O-rings, gaskets and the like ... maybe even the barrel base O-ring

Ian

[Oldiebut goodie]

Which would be perfectly acceptable IF applied correctly. It forms a gasket if lightly applied and the two faces brought together but not tightened until set. Once set and then tightened correctly it will have formed the gasket. I have yet to see a correctly made silicone gasket when I have dismantled items, everyone seems to slap copious amounts on then immediately tighten it up ( which of course then leaks!) squirting it everywhere. It has its place in the right hands.

[itchyfeet]

I'd say silicone or any lubricant on the threads is bad, there is clearly a large blob around the stud so it is likely to be on the threads

P1060594 by Paul_Barr, on Flickr

I have broken rings before taking a gudgeon pin out when the barrel comes off with head so this time I fitted the ring compressor to protect them

P1060608 by Paul_Barr, on Flickr

stud broken outside the water jacket which will hopefully make it easier to remove

P1060609 by Paul_Barr, on Flickr

other side came off easier

P1060611 by Paul_Barr, on Flickr

[New Kentish Campers]

Very interesting thread, thank you

[itchyfeet]

Stud removal

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https://club8090.co.uk/forum/viewtopic.p ... &p=8109499" onclick="window.open(this.href);return false;