|
|
Post by paulsd1 on Dec 26, 2016 12:43:43 GMT
Question,.
The 2 head bolts that have the rubber seal attached.....
Does this stop the oil coming up past the bolt threads or does the oil leak from the top ,down.??
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 26, 2016 13:01:24 GMT
Neither. Honda's original intended function is still to be researched and decided despite a few theories. But actually the rubber sleeves stop oil leaking out from the camchain tunnel through the slots machined in the underside of the cylinders. No slots in your cylinder block- like the early bikes and some of the later ones- seals not needed... Quicker answer than FB too!  |
|
|
|
Post by paulsd1 on Dec 26, 2016 16:36:26 GMT
you mean those 2 little...10 x 2 mm slots on base of barrels  ? Question....all those who use silicone....what do you use to withstand engine temp's and anybody know what is the engine temp ....when HOT after a few miles , riding normal |
|
ian
Member Of The Year 2019 
Isle of Man
Posts: 5,400 
mini-profile background: {"image":"","color":"29908d"}
|
Post by ian on Dec 26, 2016 21:33:50 GMT
I used silicone gasket in the slots on my 400NA after removing all remnants of the seals & had no problem over 3 years & about 12k miles, I think it was Hermatite, but deffo silicone, not the old stuff. During that time, the bolts came back in stock at Silvers, so I bought a couple & replaced them next time I was pulling the engine apart. Some time soon, I want to do a top end rebuild on my 250NB, I'm going to see if I can get the slots tig welded up & skimmed to be rid of that problem. My 400N doesn't have the slots  |
|
|
|
Post by paulsd1 on Dec 27, 2016 17:07:10 GMT
have contacted my friendly welder and am having those 2 little grooves welded....that will solve it.... |
|
ian
Member Of The Year 2019
Isle of Man
Posts: 5,400
mini-profile background: {"image":"","color":"29908d"}
|
Post by ian on Dec 27, 2016 17:12:24 GMT
Nice one! I'll be interested how it goes & what it costs.
|
|
|
|
Post by paulsd1 on Dec 29, 2016 22:41:59 GMT
Nice one! I'll be interested how it goes & what it costs. Ian, Its on a new thread now |
|
?
