Manifold and head clean?

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Originally Posted by mrb505

You could try Engine Reconditioning - John Fowler Automotive - Armidale Mechanic Subaru Parts & Service had cyl head cleaned here a while ago came back looking new

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Thank you for that! How much did it cost you?

Sorry I really can’t remember the cost it was about 5 years ago
Wish I did remember Fowlers when I cleaned the td5 inlet manifold when i de EGRed it
what a mess used 20 litres of kero and fair bit of time

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Originally Posted by Mal

Brake cleaner generally works well with some scrubbing, Careful using oven cleaner on alloy as sodium hydroxide and aluminium don't play nice together.
The exhaust manifold can be cleaned in a caustic tank .

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Second that, don't even think about using oven cleaner on an alloy head.

DL