| Diagram | Fig. 5 — CYLINDER BLOCK AND HEAD TR7RV · ref 27 |
| Subsystem | engine top |
| Listed in parts books | 1974, 1976–1980, 1985 |
Bridge plate
A cylinder head bridge plate used under the head fasteners on T140/TR7-family top ends.
This is the bridge plate that sits under the head bolts on the cylinder head, part of the top-end hardware that clamps the head down to the barrel and crankcase. It shows up across several cylinder block and head figures for the T140V, T140E, and TR7RV, so it's a piece worth checking against your own parts book before you order.
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The bridge plate spreads the load from the head bolt or socket nut across the head casting rather than letting it bear on a single point, which matters when you're torquing down a head that's been off the bike a few times. It's a small, unglamorous part, but a warped or missing one can throw off your torque readings and lead to head gasket trouble down the line.
We stock these as a straightforward replacement item. If you're doing a full head service, it's worth having one on hand along with the rest of your head bolt hardware.
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