DarrenW
|
| posted on 17/5/06 at 08:41 AM |
|
|
Posh Beer Can catch tank pic + breather Q
There has been a lot of discussion about hugely complicated oil catch tanks recently and why a beer can will suffice.
i have gone 1 step up from a beer can but nevertheless my catch tank is very simple and uncomplicated. You check the level by pulling filter off and
dipping with piece of wire. You empty by removing 2 screws from base plate and tip the oil out.
This was custom made to my requirements by our good friend Deneo. I called up on Monday and he made it while i waited. Many thanks Dene for your help.
Cant wait to see the bike carb manifold completed at the end of the month.
[Edited on 17/5/06 by DarrenW]
 
Rescued attachment catch tank small.JPG
|
|
|
|
|
muzchap
|
| posted on 17/5/06 at 09:27 AM |
|
|
Gotta agree with ya Darren - keep it simple 
Mine is similar in look - just has a drain plug underneath.
I'll empty it every now and again 
------------------------------------
If you believe you're not crazy, whilst everybody is telling you, you are - then they are definitely wrong!
------------------------------------
|
|
|
DarrenW
|
| posted on 17/5/06 at 10:18 AM |
|
|
One question i forgot to ask. The std Pinto crankcase breather has what looks like a ball inside it. I guess this is to stop oil dropping back down. I
also guess the ball is pulled up by the vacuum created at the manifold. i no longer have a vacuum after plumbing into the catch tank. Does the
breather (is this also known as PCV valve??) have to be modified?
|
|
|
NS Dev
|
| posted on 17/5/06 at 10:21 AM |
|
|
Yes, you need to take the valve out or buy a valveless one from rally design or burton (the alloy block breather)
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
|
|
|
NS Dev
|
| posted on 17/5/06 at 10:22 AM |
|
|
breather's just the job by the way! Very good indeed. Post some piccys as soon as you've got the bike manifold sorted!
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
|
|
|
DarrenW
|
| posted on 17/5/06 at 10:28 AM |
|
|
Cheers Nat, will do. manifold will follow the simple formula. Its a straight forward flate plate with 4 tubes )and of course a water connection). From
what i have seen of it so far it is going to be just great and locost as well.
Im now racking my brains to work out how i can mod the current valve. I dont seem to recall seeing a join in it last night............
drill it out?
Bond the ball in its uppermost location?
Cut the housing open, remove valve and bond housing back together with JB Weld.
Just push the hose in the hole where the breather sits?
How stingy am i??????
|
|
|
flak monkey
|
| posted on 17/5/06 at 10:42 AM |
|
|
I have a quick question about the pinto PCV valves too...
How is it fitted into the block? Is it just a push in fit? I didnt want to yank on it too hard... The one fitted to my block doesnt seem to have a
pipe connection to it, unless the pipe is just stuffed in the top of it? And helpfully i dont have any pictures!
(Found one in James' archive here Clicky
I think I will be making a catch tank out of an aluminium flask and some bits of pipe. Skint
Apologies for the thread hijack.
Your tank looks very smart Darren 
Sera
http://www.motosera.com
|
|
|
DarrenW
|
| posted on 17/5/06 at 11:18 AM |
|
|
No probs on hijck, well its not really i hijack anyway.
That looks like the same valve i have except i have a bit pushed into the top that has 2 outlets. It is this piece that has a kind of ball valve in. I
was thinking that i may be able to junk the t-piece with valve and just push the pipe straight in instead. For now ive blocked one of the oulets off,
other connected to catch tank. Im hoping the bit in the pic is just a can and doesnt need modding.
Ive also connected the oulet from oil filler cap to the tank as well.
|
|
|
greggors84
|
| posted on 17/5/06 at 11:44 AM |
|
|
I have a PCV valve that looks like the one from james archive except it has a bit on the end to push the hose on to.
Most of them are a diaphram (or plunger maybe) that is pulled upwards by the manifold vacuum, as the vacuum is highest at low engine speeds the
diaphram is pulled upwards so it doesnt vent into the manifold, this would cause an upset with the fuel/ratio as there isnt much fuel going in, when
the engine speed increases and the vacuum drops the PCV valve release and lets the gases go into the manifold, as there is a higher air/fuel mixture
going into the engine, the gases dont matter as much.
Anyway, i doubt most of us are venting into the manifold, but if it is just vented into a catch tank there wont be an vacuum to pull the diaphram up
meaning it will just vent as normal.
I know that mine when just connected to a hose seems to vent ok, you can notice a bit of vapour coming out when the engine has been running a while.
Chris
The Magnificent 7!
|
|
|
TangoMan
|
| posted on 18/5/06 at 11:06 PM |
|
|
Pressure
I seem to remember being told that these valves are set to open at 5psi so need to have the internals taken out. Without this all breathing will come
through the filler cap.
I haven't tested it but mine has the internals removed for good measure as I am feeding a tank.
|
|
|
DarrenW
|
| posted on 19/5/06 at 09:53 AM |
|
|
How did you remove the internals?
|
|
|
Krismc
|
| posted on 19/5/06 at 02:55 PM |
|
|
Im totally confused now, do i need one off these, im running a black top unit and the catch tank is on the side of the engine i think , do i need to
modify this ???
Built, Ivaed, Drove and now Sold - 2011 MNR VORTX RT+ 2000cc Zetec on R1 Throttle boddies.
|
|
|
DarrenW
|
| posted on 19/5/06 at 03:10 PM |
|
|
i dont know how the zetec breather works. I only have experience of the Pinto one.
Does the zetec one have a one way type of valve that is sucked by inlet vacuum? If it does then i guess it also needs to be modified / changed. Im
favouring the rally design alternative as it is less than a fiver for the pinto.
|
|
|
Krismc
|
| posted on 19/5/06 at 04:58 PM |
|
|
i havent a clue???
al i know that there is a catch tank already on side on my engine with pipe comming off, and i dont know where it goes!!
Built, Ivaed, Drove and now Sold - 2011 MNR VORTX RT+ 2000cc Zetec on R1 Throttle boddies.
|
|
|
givemethebighammer
|
| posted on 19/5/06 at 09:19 PM |
|
|
quote:
Originally posted by Krismc
i havent a clue???
al i know that there is a catch tank already on side on my engine with pipe comming off, and i dont know where it goes!!
Thats not a catch tank, it's an oil separator. I all I have done is taken the oil separator off. Blanked the hole with a aluminium plate and
gasket. Then just fed the breather from the cam cover into a catch tank. Apparently this is what people like Dunnell do, and the race guys too.
[Edited on 20/5/06 by givemethebighammer]
|
|
|
Krismc
|
| posted on 20/5/06 at 04:58 PM |
|
|
great cheers!
Built, Ivaed, Drove and now Sold - 2011 MNR VORTX RT+ 2000cc Zetec on R1 Throttle boddies.
|
|
|
Dusty
|
| posted on 20/5/06 at 09:44 PM |
|
|
This is the PCV from my old pinto which pushed into the top of the breather, with the valve taken out. Just gently grind off the lower edge till it
all falls out. Very similar PCV in behind the oil separator on the side of my silvertop block. I have dealt with it the same.
 
Rescued attachment breather.jpg
|
|
|
DarrenW
|
| posted on 20/5/06 at 09:52 PM |
|
|
Dusty,
Many thanks just what i wanted to see.
Cheers,
darren
|
|
|
