Is it insanity?

Why not take a piece of hardened steel and grind it to a shape that will swage the timing chain pins, and use a 4" C-clamp to apply the pressure? I bet a larger allen wrench could be ground on the side with a dremel to make the correct shape (something trapezoidal?). If somebody has a close-up picture of the 'real' tool I'll give it a shot. I'm sure somebody will do the math and conclude the $200 tool is cheaper than a valve job. But I guess that's just not my style. If I wanted easy I wouldn't love my old E's

The attached picture is the cross-section of the tool. I would guess that area A is where the tool mates with the pin and effectively swages it. I would also guess that area B is to ensure the correct fitting of the swage on the chain and the pin. (I will forego B for many reasons). So I'll give this a shot and post some pics of what I come up with and what the chain looks like afterwards...

Robert

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89 300te 222,222
92 300e 190,000