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T04 CHRA bolts

Old 11-26-18, 12:53 PM
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T04 CHRA bolts

Does anyone know the size and thread pitch of the bolts that clamp the turbine/comp housings to the CHRA on a T04Z?

I can't find anyone in the UK to supply them and don't particularly want to pay for shipping from the US on six bolts.
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Old 11-27-18, 12:19 PM
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Which turbine housing are you using?
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Old 11-27-18, 12:29 PM
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.86 divided
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Old 11-27-18, 02:22 PM
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I'm not certain on the T04Z but on my T04R it has M8 x 1.25 pitch, 16mm length bolts. Make sure you get high heat bolts, I think the Garrett part # is 400677-0816.

Last edited by Copeland; 11-27-18 at 02:25 PM.
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Old 11-28-18, 05:27 AM
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Do they use a standard size spanner/socket? I was guessing they were imperial because the hex head is an odd size. 12mm too small, 13mm too big, 7/16 too small, 1/2 too big. The 1/2 fitted best, but it was touch and go on rounding them off.
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