Toyota M engine

This page is a draft. It has not been approved yet, so read it with care.

Watch out for

Reputation: what owners and the press report. Tap one to see what to check.

Head gasket failure from low head bolt torque 7M-GTE One source so far

What to check: Look for oil in the coolant, coolant in the oil and smoke from the exhaust. Ask whether the head bolts were replaced and torqued higher.

PistonHeads says the 7M-GE is very reliable but the 7M-GTE has one prominent flaw: Toyota's original head bolt torque of around 58 lb-ft did not clamp the gasket properly. It advises new bolts torqued to 72 lb-ft.

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