| Also known as | E3249 |
| Diagram | Fig. 3 — CYLINDER BARREL AND HEAD · ref 30 |
| Subsystem | engine top |
| Listed in parts books | 1963–1964 |
Copper washer 5/16 in.
A 5/16 in. copper sealing washer used in the cylinder barrel and head assembly.
This is a copper washer sized at 5/16 in., listed under the cylinder barrel and head section of the parts book. In the older catalogs it shows up as E3249 before the shop switched over to the numeric prefix system, so if you're working from an early book and see that number, it's the same washer.
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Copper washers like this one are used as sealing washers, typically under a bolt or stud head where you want a soft metal face to crush down and seal rather than a plain steel or fibre washer. Given its place in the cylinder barrel and head listings, it's likely fitted somewhere in that top-end assembly, though the catalog record doesn't spell out the exact bolt or stud it goes with.
It's a small, easy part to keep a few of on hand when you're pulling the head down, since copper washers work best fresh rather than reused. Call the shop if you want to confirm exactly which fastener it's paired with before you order.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
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