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/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> What? Why bother? I dunno .... /cgi-bin/YaBB.pl?num=1268584792 Message started by Oldfeller on 03/14/10 at 09:39:51 |
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Title: What? Why bother? I dunno .... Post by Oldfeller on 03/14/10 at 09:39:51 Serenity gave me a dead engine to work out the head bearing fix upon. This has been accomplished, along with a couple of other small investigations and fixes (solutions posted in Tech Section). What other major engine illness do we have that needs addressing? What is next for Serenity's engine? |
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Title: Re: What is next for Serenity's engine? Post by verslagen1 on 03/14/10 at 10:13:32 It seems the worst thing that can happen to our bikes is the loss of oil flow. W/o adding a $60 gage kit, what can be done to verify oil flow thru the vital parts of the engine? |
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Title: Re: What is next for Serenity's engine? Post by Oldfeller on 03/14/10 at 11:43:44 How about a really tiny pressure gage port (say 1/8" tread) drilled & tapped directly into the oil gallery up at the head cover? Who has a source for an inexpensive little pressure gage? This one might could possibly be of some use (at $2.99 it is worth the experiment $$) http://images.harborfreight.com/cpi/photos/45200-45299/45201.gif http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=45201 We could get cute and run a flexible line over to the handle bar as well. By tapping into the cover oil gallery you can get a read for any blockages, etc after a rebuild is completed. You will be measuring what ACTUALLY gets up to the head bearings themselves in real time. ============ And this one would just be an everything solution for $19.99 http://images.harborfreight.com/cpi/photos/65200-65299/65210.gif http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=65210 |
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Title: Re: What is next for Serenity's engine? Post by verslagen1 on 03/14/10 at 12:08:22 Not bad, you could mount in there a tire valve stem and take readings at will. Or remove the valve and connect the panel gage. http://www.acschradervalves.com/products.html |
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Title: Re: What is next for Serenity's engine? Post by justin_o_guy2 on 03/14/10 at 12:32:54 Id rather put a Murphy switch/gauge in a spot like that. I might not be looking at the moment itdropped. Hekkuva an idea, to monitor the cam oil pressure. |
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Title: Re: What is next for Serenity's engine? Post by Oldfeller on 03/14/10 at 13:05:11 Justin has a point -- a schrader can trap pressure until relieved somehow. I'd unscrew the schrader and use the freed up threads to make up the connection. |
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Title: Re: What is next for Serenity's engine? Post by verslagen1 on 03/14/10 at 13:16:38 50737B797A73737A6D1F0 wrote:
I don't think JOG was talking about trapped pressure OF. But to address that point, trapped pressure? Where? Either remove the schrader valve for a permanently connected gage or remove the gage. That was a tire gage you listed. The purpose of the valve is to allow temporary connection and to hold oil in when not hooked up. Found the Murphy switch/gage site... and as murphy's law would have it, all the links were broken. couldn't find sh!t. send a link please. |
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Title: Re: What is next for Serenity's engine? Post by bill67 on 03/14/10 at 13:25:54 If I had gages I would want a red light to come on and say check engine,Low tire pressure,low fuel. |
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Title: Re: What is next for Serenity's engine? Post by Oldfeller on 03/14/10 at 13:28:23 You are thinking Scrader in the head gallery attachment, I was thinking Scrader in the hand gage assembly, sorry. Would the rubber in a normal Scrader valve do well in oil at head temps? ------ Bill, what do they call those sorts of lights again? |
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Title: Re: What is next for Serenity's engine? Post by bill67 on 03/14/10 at 13:35:56 Oldfeller lights ;) |
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Title: Re: What is next for Serenity's engine? Post by Oldfeller on 03/14/10 at 13:36:36 Yep, must be |
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Title: Re: What is next for Serenity's engine? Post by verslagen1 on 03/14/10 at 13:52:54 72797C7C2627100 wrote:
I got those flashy, sparkly kinda lights that say "check brain" |
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Title: Re: What is next for Serenity's engine? Post by verslagen1 on 03/14/10 at 14:01:36 60434B494A43434A5D2F0 wrote:
R-12 & R-134a Standard Flow Schrader Valve Core W/ Neoprene Seal - Color Coded Green on Top / Black Barrel Seal (These Valve Cores are produced by different manufacturers: thus the color coding for identification. All will work with R-12 & R-134A, Polyester, Mineral & Pag Lubricants.) Key word here, neoprene seal. So even if a standard seal don't hold up, these will. And worse case... put a steel cap on it to back it up. I would anyway. Last thing you'd want to do is spray hot oil all along the side of some cager! ;) ;) |
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Title: Re: What is next for Serenity's engine? Post by bill67 on 03/14/10 at 14:21:45 22312627383533313A65540 wrote:
I got those flashy, sparkly kinda lights that say "check brain"[/quote] Did you |
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Title: Re: What? Why bother? I dunno .... Post by Truckinduc on 03/14/10 at 19:52:28 is the cam pressurized with oil inside? Ive yet to tear into the head. IF IT IS ill make an aluminum cam plug, where it is sandwiched in the cam cover and head. Then thread it and run a gauge off of it. Just throwing ideas out there, maybe it wont work. If it works I could make more. |
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Title: Re: What? Why bother? I dunno .... Post by verslagen1 on 03/14/10 at 20:41:07 Nope, there's a drip feed onto the bearings. |
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Title: Re: What? Why bother? I dunno .... Post by Oldfeller on 03/15/10 at 04:04:50 The long small end bearing has a notch in the end of it that collects the overflow from that side of the top pressurized bearing, it faces the blind side on the entire opposite end of the head from the large rubber plug side and it has a hole that goes into the cam shaft. Some oil is forced into the hollow cam shaft. Overflow from that one half of that one pressurized bearing does make its way into the cam shaft, which does have 2 exit holes and an organized out flow path for that very minimal amount of oil flow. What doesn't go out the holes to lube the tappets goes all the way through the hollow cam shaft to lube the half bearing on the far side of the cam from where it started out. Funny, that half bearing winds up being important as it carries load all the time yet I have never seen one galled or torn up. Worn yes, but apparently they always get tossed up oil off the cam chain and this little dribble flow and are always well lubricated and cool. |
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