Loose Turbo Bolts - growing problem

[DIDZ]

Hi Guys,

Just having a peek in here. I was wondering what the outcome of the new bolts were?

[Guy_H]

Didz,

We still have not sourced the correct size inconel bolts (Jimmy Mac was working on it).

Our little Polo hardly does any miles, but it withstood the last brutal 4 hour trackday with no problem.

[Jmac]

Yeah fellas im on to it my Ex foreman at Boeing is not back from holidays yet. Will let you know the minute i hear something.
CHeers

[Guy_H]

Boys, just an update - unfortunately ours didnt hold again (after another track day) - seems to hold OK on the street, but gets hammered on the track.

The K03 is back on & al factory parts now, so we are about to lose our test unit

[Jmac]

Guy thanks for the reminder mate my old foreman at Boeing will be back at work now , can you please give me the bolt sizes again i promise i will save it this time cheers
Jimmy

[Timbo]

Boys, just an update - unfortunately ours didnt hold again (after another track day) - seems to hold OK on the street, but gets hammered on the track.

Mine are still OK, but I haven't tracked since -- probably done about 5,000 road ks

[Jmac]

Guy disregard that mate i see you have already put the sizes on a couple of threads back cheers.

[VW GTI]

Boys, just an update - unfortunately ours didnt hold again (after another track day) - seems to hold OK on the street, but gets hammered on the track.

The K03 is back on & al factory parts now, so we are about to lose our test unit

You can apply some mods to my car for free if you want a test car

You'll need to treat it nice though :p

[archangel_7]

Generally most apparent when cold starting. Engine sounds a bit asthmatic (wheezy) and there may be some metallic jingling (no, I'm not kidding).

When the engine warms up, these sounds may disappear. The symptoms gradually get worse (I don't know what happens if the bolts actually fall out - maybe one or more of you do ).

Sounds like your choke is working fine! try using injector cleaner/valve cleaner

[archangel_7]

Check for vacuum/air leaks at the boost control valve. It is possible that the bolts have worked loose and is letting air escape past the gasket. The leak may stop once the engine is warm as the heat expansion of the gasket and/or valve itself have sealed the leak. (You can check for this by using the old "soapy-water-applied -to-the-base-of-the-valve trick; but more noticeably, you'll hear a sound that reminds of an exhaust leak.

[MACCAA]

Checked my turbo bolts yesterday.They were replaced 3months/6000k ago.The one nearest the block has come loose.Not happy....
seems to be a much bigger problem than first thought.Log on to the Technical section under "1.8 engine" and type in "turbo bolts".
Pages and pages of them undoing,from low km standard cars to modified ones-and no one with a fix for them....

[pomme]

I updated the thread i started (when i didn't know it was the turbo bolts) vw had a look, tightened them up... they came loose 3 weeks later. Going in on monday to have another look. They said they will replace them this time... yippee. Anyway, i get to drive the golf tdi around all day again, its not all bad.

[archangel_7]

which VW dealer did you take it to?

[h100vw]

http://www.aviall.com/cgi-bin/index.jsp

Aircraft parts suppliers to everyone in Australia. Not sure you'd get metric bolts from them though??

Gavin

[pomme]

which VW dealer did you take it to?

Springwood, QLD