Compression test low, unable to bleed and overheat.

[scanner]

Temp gauge sitting at 11 o'clock position.

................ and if it hasn't been modified to read accurately that's all it will ever sit at.

And how do you modify it?

You'll need to do a search on here and you will get the full picture. As standard the gauge doesn't move off 11 o'clock until it's too late and the engine is cooked.

There are various ways to modify the gauge some bought in, some DIY.

[g8dhe]

Instructions here http://www.g8dhe.net/bongo_images/Tempgauge.pdf