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Press fitting alloy into steel dimensions?

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jeffyjeff
World Chat Champion



Joined: 02 May 2020
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PostPosted: 18:22 - 07 Jan 2022    Post subject: Reply with quote
stinkwheel wrote:
The higher output engine revs significantly higher (about 1,000rpm higher and peak power is up in that extra rev range), the cams have significantly higher lift to the point the engine casing had to be machined out to accommodate them and it's fitted with significantly stronger valve springs with wider spacing to avoid bounce and becoming coilbound. So it's fair to say, the rods are under a great deal more stress than in a standard engine.

Well that explains the bent pushrod. Even if the rockers or adjuster screws don't fail, I would anticipate accelerated wear on the rocker bushings and rocker shaft (over time). I applaud your efforts to achieve more performance out of your Enfield. Clapping

You might just be the Burt Munro of Royal Enfield. Lemme know when you get to Bonneville, I'd ride over to see that! Cool
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stinkwheel
Bovine Proctologist



Joined: 12 Jul 2004
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PostPosted: 21:09 - 07 Jan 2022    Post subject: Reply with quote
jeffyjeff wrote:
I would anticipate accelerated wear on the rocker bushings and rocker shaft (over time).


I've set them up to be pressure-fed. They get the full output of the scavenge pump and excess pressure is bled off with a bypass valve in the feed line. Mr. Green
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I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.
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