Author Topic: A7 ss Sludge trap plugs  (Read 119 times)

Online Roger (Doomtrainbarx)

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A7 ss Sludge trap plugs
« on: 16.07. 2026 18:58 »
I was checking the "sludge trap" chamber on this A7 crank today.
When I fitted the new bungs, I noticed they screw in a couple of threads below the webbing face.
Should they be flush and peined over, or screwed right in till they stop ?
1962 Super Rocket
1989 Harley FXRS (Turbo)

Online berger

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Re: A7 ss Sludge trap plugs
« Reply #1 on: 16.07. 2026 20:18 »
rog that subject has just been covered yesterday in depth .  *beer*

Offline muskrat

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Re: A7 ss Sludge trap plugs
« Reply #2 on: 16.07. 2026 21:39 »
G'day Roger.
Both ends flush with two good center pops to keep'em there. Check the length of the timing side plug to make certain it will not block the oil hole. SJ plugs differ to LJ plugs.
Cheers
'51 A7 plunger, '57 A7SS racer now a A10CR,  '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7