Introduction
This document outlines the process of replacing a cracked cylinder head on a Toyota Prado 90 Series with a 1KZ-TE engine. It details symptoms, temporary fixes, and a permanent repair solution.
Problem
- White vapour from the exhaust.
- Burnt glycol smell.
- Bubbling in the coolant overflow.
- Symptoms appeared at approximately 337,000 km.
Temporary Solution
- Add Seal Tite to the cooling system as per the product directions.
- Run the engine until all bubbles disappear from the coolant overflow.
Solution
- Replace the cracked cylinder head.
- Replace the timing belt and tensioner.
- Perform a full vehicle service, including new engine oil and oil filter.
- Replace coolant.
- Replace all four glow plugs.
Relevant Parts
- Cylinder Head: Aussie made cylinder head from All Head Services (Hallam, Victoria).
- Timing Belt: New timing belt.
- Timing Belt Tensioner: New tensioner.
- Glow Plugs: Four new glow plugs.
- Coolant: New coolant.
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