Too rusty for a rebore?
Discussion
Hi all,
I drive a supra and due to a combination of high mileage and boost (1.4 bar) the rings are shot and I burn loads of oil.
I've sourced another block which I plan on building up with forged pistons and other goodies (so I can run more boost) before swapping it into the car in a month or two. However, it's been sitting outside in the rain for a few weeks and the cylinders were full of water when I collected it. It's an iron block, so the bores have gone pretty damn rusty.
How do I judge whether too much material has been corroded for a rebore to be successful? What is the best way of cleaning the excess rust out so I can remove the pistons (push them out through the top after the crank is removed)? I don't want to damamge the bores any more than they are already.
The engine was free so if it's knackered it's not the end of the world, I just don't know how to judge it as this is my first engine build.
I drive a supra and due to a combination of high mileage and boost (1.4 bar) the rings are shot and I burn loads of oil.
I've sourced another block which I plan on building up with forged pistons and other goodies (so I can run more boost) before swapping it into the car in a month or two. However, it's been sitting outside in the rain for a few weeks and the cylinders were full of water when I collected it. It's an iron block, so the bores have gone pretty damn rusty.
How do I judge whether too much material has been corroded for a rebore to be successful? What is the best way of cleaning the excess rust out so I can remove the pistons (push them out through the top after the crank is removed)? I don't want to damamge the bores any more than they are already.
The engine was free so if it's knackered it's not the end of the world, I just don't know how to judge it as this is my first engine build.
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