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Dave
Supporter
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Posted: Thu Aug 23rd, 2007 04:09 pm |
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I'm not sure what years were involved in the "Head-Breathers" when it comes to the Evo engines. Make sure that the heads you're using have the holes in them for the vents.
Mine's an 87 and and it has the crank-case vent. No venting from the heads...
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bartsworld
Prospect
| Joined: | Wed Aug 22nd, 2007 |
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| Posts: | 3 |
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Posted: Thu Aug 23rd, 2007 03:54 pm |
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Hey everyone. Thanks for the replies. After a little research last night I did find out that the extra hole was for the primary chain oiler. So, that is not part of my issue now since I plugged it.
As for the crankcase vent goes. Heres what I came up with. Since I am running evo heads, I believe there is no need for a crankcase vent. I do have the vent from the crankcase to the oil box. But the speperate crankcase vent I believe i wont need. In a shovel "if i'm correct" the crancase vent is used because all upper end oil is routed through solid lines back to the lower end. On evo models its the breathers are in the heads... So, im guessing as long as i had ability to have an upper end breather. I wont need the crankcase vent. DOes this sound correct to anyone???
In order to fix my oil return problem from the shovel axtel cyclinders and the evo heads. I had 1/8in holes machined in the heads and am running external oil return lines to my vent tube.
Again thanks alot.
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Abo
Supporter
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Posted: Wed Aug 22nd, 2007 11:48 pm |
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| Hey man. Hope this helps.. Abo Attachment: oilfittings.jpg (Downloaded 13 times)
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weasle
Supporter
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Posted: Wed Aug 22nd, 2007 08:53 pm |
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| barts world ,just curious what ya did to plug the vent holes in the evo heads ,and the holes under the umbrella valves in the rocker boxes ? that hole in your cases may also be the crank vent as shovels vent to the atmosphire, rather than through the pushrods like the evos.
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Dave
Supporter
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Posted: Wed Aug 22nd, 2007 05:28 pm |
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I'm thinking the same thing as Weasle on the starting issue. Might want to make sure you've got a really good battery and charging system also. Compression releases might be your answer on that.
As for the oiling issue. I'm going to guess that you've got a open hole there that is supposed to be routed to the primary. Like Weasle said. I got this from another board...
You can seal the chain oiler at the pump cover.Pull the fitting for chain oiler out tap and plug. Also plug the screw for adjusting chain oil feed... Remove it and put set screw in it.You can also remove the chain oiler hose from the fitting to block.And change fitting so you dont have what was the chain oil hose fitting open to air when you seal primary. Get a 1/4 - 28 thread tap and tap the holes were the hose fittings were for the chain oiler and also for the primary oiler hose on top of pump and get two set screws that size to screw in them.Advise pulling pump cover to tap them.
Also from another forum, not sure if the link works or not, I can't hit it from work...
Here's a quick link to a bunch of tech tips, including the primary case sealing: http://www.virtual-cycles.com/forum/viewforum.php?f=20
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weasle
Supporter
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Posted: Wed Aug 22nd, 2007 04:54 pm |
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| im no expert , but have always heard shovel & evo parts arent really compatable. you might try compression releases for your starter problem , if the new one doesnt work out . other than that im not much help. the hole in the case may be for oiling your primary chain , if i recall right .
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bartsworld
Prospect
| Joined: | Wed Aug 22nd, 2007 |
| Location: | |
| Posts: | 3 |
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Posted: Wed Aug 22nd, 2007 04:14 pm |
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Hello everyone. I was hoping to come to this site for knowledge and a little help. I'm from minnesota where our bridges fall down and our rivers overflow.
I started building a bike about a year ago. Im using a delkron case, axtel shovel cylinders, 4.5 truett and osborne stroker, evo heads with machine work, s&s oil pump. The delkron case is a shovel case. So its called the shovelution. Has anyone built a bike like this before with a shovel lower end and an evo top end???
My first problem was the starter. the starter kept getting week after cranking the motor over time and again. So, I bought a 2.0 kw starter which is still in the process of shipping. Hopefully it will work.
My next problem i noticed was after I took the oil lines off i seemed to have only one wet line. It was the feed line. I bought the lower end already built and it had the oil pump installed. When i went to start it the first time i thought the oil pump was leaking like a sive. I came to find out it was not the pump itself but it was a little hole in the case to the left of the pump. I have not been in contact with the person who build the lower end. So, i was wondering if they may have left that hole unplugged for future use of it. or they didn't remember to plug it. Well, i plugged it. And it seems as if im getting no oil throught the return. I know for a fact the engine is getting oil to the top end. i have machined holes in my head for the oil return to the case instead of going back through the cyclinders like an evo would. since they are shovel cylinders.
Also, was wondering if anyone would help me with the routing of my oil lines i have coming from the heads. I have seen where people have machined holes and put fittings in the case right above the timing inspeciton hole. Well, thats a little to advanced for me. SO i decided to run my returns from the heads to my vent line. Is this a smart idea???
I belive the setup of the oil pump is for a shove. I have a vent feed and return. Vent is above the tank in the case. THe feed and return is on top of the oil pump.
The bike im building is a fxr pro street frame. Built by kenny boyce.
Any help would be great. Thanks
Bartsworld
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