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Post by muvit madness on Aug 5, 2007 21:35:16 GMT 11
hi all I just installed a oil catch can that i bought from super cheap auto cost $59.95 & i thought i would share some pics of my effort. although i'm not sure if it's worthy of the WIKI/FAQ PAGE though. anyway here's what i did: firstly: here's a pic of the can:  red anodized with alloy fittings & a viewable oil level which i think will just turn black anyway regardless how full it gets also has a plug for a return line fitting that it didn't come with that i need to plumb into the dipstick some how with a inline tap just for preventative measures so that there's no pressure forced up from the sump into the can this way. i'm thinking of sourcing a 3.1 dipstick as i heard from previous posts that there a 2 piece tube or something?. secondly: was finding some where to mount the damn thing  its size was a real problem so i decided to remove the plastic bulb on the end of the air canister who needs that anyway, i'm assuming thats just in case you drown the truck & it gives the water a place to fill before it is sucked into the engine. could be wrong though  just sealed the holes up with some black RTV & bobs your uncle.  then i just bent the ends of the brackets in to give me something to mount off. |
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Post by muvit madness on Aug 5, 2007 21:45:15 GMT 11
 thirdly: i fashioned some aluminum to mount the catch can to & this is where its upto now its fully mounted but just needs to be plumbed up now which i'm thinking of the line out of the rocker cover into the catch can then out of this back to the junction? is this right or do you by-pass the manifold & go straight to the air intake pipe?. cheers muvit  |
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fly3r
Isuzu Senior
Shmoou
Posts: 197
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Post by fly3r on Aug 6, 2007 18:44:49 GMT 11
It looks so shine!!!the red almost matches too, princess moo moo is back!! btw can u get them in blue???
But serious, i'd like to find out which lines you are running it to cause i have a fair bit of oil in my intake... Also what does it do to the oil that it catches?? oes it run down a hos and dri onto the driveway???
lookin good!
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Post by geeves on Aug 6, 2007 19:09:04 GMT 11
With those catch cans you have a choise of either keep an eye on the level and drain when required or connect a line to the brass plug at the bottom and feed this back into a suitable drain back into the sump. This is difficult on a 2.8 unless you get the dipstick tube from a 3.1 which has a suitable T on it for the drain. This is a small diameter hose so no issues with oil blowing back this way but it probably wont drain while the engine is running but the capacity of the can is about 1 liter so unless your blowby is very bad its not a problem.
These are designed for racecars which have a motorsport rule requiring a 1 liter catch can on the crankcase breather if vented to air. They look very nice but not cheap.
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Post by muvit madness on Aug 6, 2007 21:07:29 GMT 11
hi they also come in blue. Has anyone else installed a catch can if so can you bypass the inlet pipe & block off the manifold pipe were the tee is? & is there any benefit to doing this? hence plumbing the can to atmosphere. if no one can answer this ? by the weekend i'll be the guinea pig  geez wheres fly3r when you need him  (kidding  ). cheers muvit |
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Post by geeves on Aug 7, 2007 7:12:24 GMT 11
the pipe from the manifold is the overpressure valve Its set to 16psi in therory. The catch can only needs the pipe from the tappet cover as its inlet and the pipe to the inlet to the turbo as its outlet. If you vent the catchcan to atmosphere you will have to think about waterproofing etc
The pipe on the inlet manifold can be left open but There is no advantage in doing so and a small risk of water getting in there
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Post by muvit madness on Aug 7, 2007 21:29:51 GMT 11
hi alan if thats the case i'll go with that then. tappet cover to tank, then tank to inlet tee piece easy as, although i had troubles finding a 6mm barbed fitting so i ended up re-drilling & tapping a 1/4 NPT thread. i'll post the last pics of it tomorrow night. cheers muvit |
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roga
Isuzu Junior
Posts: 58
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Post by roga on Aug 8, 2007 18:22:46 GMT 11
hi they also come in blue. Has anyone else installed a catch can if so can you bypass the inlet pipe & block off the manifold pipe were the tee is? & is there any benefit to doing this? hence plumbing the can to atmosphere. if no one can answer this ? by the weekend i'll be the guinea pig geez wheres fly3r when you need him (kidding ). cheers muvit I have one on my MU, the hoses run from the rocker cover to the can and the from the can to the inlet pipe bypassing all other tubing. I also have blocked off the overboost valve in the manifold. It works a treat. |
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Post by muvit madness on Aug 8, 2007 20:07:00 GMT 11
thanks for that fly3r just out of curiosity where does that hose go that its attached too? i think i will try rogers idea so i dont have to source a 3.1 dipstick for now anyway. cheers muvit |
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Post by muvit madness on Aug 9, 2007 22:06:07 GMT 11
ok it,s plumbed up out of the rocker cover into the can then bypassing the over boost solenoid to the air intake. i made a thin aluminum plate up to block the solenoid up, & i used the existing hose elbows to get the hose angles into the can hence the 4 worm drive clamps. it looked tidier than hose loops at the top of the can probably would have rubbed on the underside of the bonnet too. As far as the drain back into the dipstick i didn't bother coz the cans a 1litre capacity & i'm sure it wont fill it in years, although there is a npt barbed fitting at the bottom with a bleed out line fitted & a bushmans bolt as the plug that you can see cable tied to the two hoses if ever i feel the need to drain it . all in all it took me around 3hrs for start to finish & cost $98.50 in total.  cheers muvit |
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roga
Isuzu Junior
Posts: 58
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Post by roga on Aug 19, 2007 17:56:55 GMT 11
Hey muvit,
I just hit a snag with mine. Went on a long run up 90 mile beach and the can filled with oil and it started to smoke like a trooper !!
The can holds about 800ml or so so it looks like I will be fitting the drain from the can to the filler tube promptly.
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Post by muvit madness on Aug 19, 2007 19:50:46 GMT 11
hi roga thats bad luck for it to fill up like that?,do you know how it happened coz it seems like a awful lot of oil to come from the rocker cover? if it were'nt for the can that oil would've gone into your intake wouldn't it?. did it fill due to a insane angle or something like that?.i'll still keep mine the way it is or at least until i source a 3.1 dipstick. cheers muvit |
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roga
Isuzu Junior
Posts: 58
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Post by roga on Aug 20, 2007 13:03:38 GMT 11
I'm not sure just what is going on.The motor has done 240k but seems to run well and no pressure in the rocker cover at idle. May have something to do with 16psi boost and a very heavy boot ;D ;D In the sand it does work a lot harder. Will keep an eye on things from now on as I have a few offroad runs I will be doing |
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Post by geeves on Aug 20, 2007 19:46:49 GMT 11
Drain might not help as pressure will come up this line as well. It can only drain when there is low crankcase pressure. If you engine has exess fumming it will fill the catch can. If the engine only fumes under load then sustained high loads will be too much.
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its size was a real problem so i decided to remove the plastic bulb on the end of the air canister who needs that anyway, i'm assuming thats just in case you drown the truck & it gives the water a place to fill before it is sucked into the engine. could be wrong though 
just sealed the holes up with some black RTV & bobs your uncle.
(kidding 
).
