Bugger: Tenere exhaust down

Dealer's just called after whipping off the header pipes to replace
the blowing manifold gasket. Only it wasn't the gasket. There was
actually a crack (presumably vibration-induced) in one of the
stainless header pipes, behind the heat shield, where it couldn't be
seen. Cue one new set of pattern stainless headers.

Paging the metallurgists: is stainless steel any more given to
cracking than mild steel? Is it more brittle or summat?

 

Yes, more brittle. Don't get anything for nothing, see. It may not
corrode, but it still has built-in obsolescence.

 

Ta for that.

 

Can it not be TIG welded then?

--
JackH

98 Honda VFR800FiW
05 Sachs Madass
03 VW Passat TDI Sport
89 Vauxhall Nova 1.3 Pearl

 

But it can be repaired easily enough.

 

I parsed that as TOG welded

Nah, fukkit, just stick some new ones on.

 

If a replacement pipe is difficult you could drill a hole [1] at the end of
the crack to stop it propagating then GAMI to do a quick stainless weld.
Get a proper stainless weld, a mild steel weld on stainless is going to
encourage more cracking. TIG is best.

[1] Easier said than done, stainless is tough stuff. Use a cobalt drill
and plenty of cooling or maybe a diamond tip on a dremel.

 

Bullshit. A decent sharp HSS drill bit will go through.

It's only a fucking exhaust!

 

Keep the old one as a spare and get it welded by someone wot can?

 

I think we need to call a committee meeting to discuss when to call a
committee meeting to discuss this further.

--
JackH

98 Honda VFR800FiW
05 Sachs Madass
03 VW Passat TDI Sport
89 Vauxhall Nova 1.3 Pearl

 

What? Not a left-handed one?

Who are you, and what have you done with the real WUN?

 

On stainless? Are you *quite* mad?

I'm not well. I had a pneumonia jab this morning
and it's made me ill.

<flicks vees at Beav>

 

Yes.

I'm mad, me.

If you're ill, you shouldn't be at work.

 

Yes mum.

Trouble is I'm only a bit ill and I can't be arsed to drive home.

Beer and curry this evening will cure me.

 

Exactly. Takes a bit of re-sharpening mind, but it will work fine.
I recall I was getting a burner pot made up at my local metal basher
shop and it involved drilling some 200 holes in 2mm stainless. The lad's
face fell at the prospect, but I paid for it anyway.

 

In communiqué

Well at least it's a 'one off' jab.

Pneumococcus ?

<chorus>
"I've not had the pleasure..."



--
+----------------------------------------------------------------+
| Pete Fisher at Home: |
| Voxan Roadster Gilera Nordwest * 2 Yamaha WR250Z |
| Gilera GFR * 2 Moto Morini 2C/375 Morini 350 "Forgotten Error" |
+----------------------------------------------------------------+

 

You're likely to get a pedantic reply from a metallurgist pointing out that
there's hundreds of different grades of steel that are covered by the
frequently misused terms 'mild steel' and 'stainless steel'. Said range of
materials has a wide variety of properties that would make any affirmative
or negative reply to such a simple question equally likely to be a complete
load of old bollocks.

Not that I would ever stoop so low.

 

No, right...

<G>

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, Pete Fisher

That's the badger.

Heh. Fucking nurse. She said "You've not had this, and we recommend it.
It won't take a sec."

"Oh, OK" says I.

"Are you right or left-handed?"

Oh, riiiiight. It's going to hurt then.

In fairness, it's just left me feeling one degree under, and that's
almost certainly psychosomatic.

 

I don't remember it having that effect on me, but I was given it after a
horrendous bout of bronchitis that was turning into pneumonia. So I was
probably still several degrees under.

--
+----------------------------------------------------------------+
| Pete Fisher at Home: |
| Voxan Roadster Gilera Nordwest * 2 Yamaha WR250Z |
| Gilera GFR * 2 Moto Morini 2C/375 Morini 350 "Forgotten Error" |
+----------------------------------------------------------------+