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Posted

Hi all,

 

Just spent two two weeks rebuilding my carby and it was all jammed up with gunk..

 

would an oil catch can help this?

 

If so could i just run the tube from the block in to an old "MILO" tin.

Would i have to vent the gas back in to the carby?

Since my block has two "breather" holes should i run them both in to the can??

 

might seem like a silly question but some body might have played with this before!

 

thanks in advance..

Posted

"gunk" isn't very descriptive in troubleshooting what was wrong with your carb

 

you should run a hose from the rocker cover to the can, then from the can back to the manifold, so you have something to suck the excess crankcase vapours out the engine. just having a milo tin or coke bottle wouldn't be of great help keeping your oil unpolluted

 

you fill the oil/air separator with pot scrubbers or something, so the oil stays in it, but the air can flow back to the engine

Posted

ok the inside of the carby was all black and the secondary's where stuck open, it was oil, do I run both hoses off the head in to the can, and run one from the can in to the bottom of the carbyand block off the one on the airfilter? i was going to fill the can with steel wool...Hold on a have a spare water seperatorof my hiluc that could look kewl... i will take a pic of the one in my hilux now...

Posted

get used to search engines, we're not here to spoonfeed you :D

 

block the middle rocker cover pipe with a 10mm rubber cap, you can get them for a few bucks in those "panel packs" at supercheap, on the same stand you buy bolts and stuff from

 

steel wool would probably make little bits of itself get inside your engine and that's bad. pot scrubbers look like metal filings and they won't come apart

 

the air filter is not a source of vacuum, don't use it at all

Posted

2l_sedi.jpg

 

i could fill rip open the fuel filter and fill it will some thing to catch the oil vapour and the bottle could catch the bigger stuff.. it would just look like to should be there, regodown here does not allow oil catching devices so if i made it that way they would have no idea... and it would look cool....

I am sorry if you feel i wasted your time by asking the same question again but thanks anyways....

Posted (edited)

"how do i make a catch can?"

"i can't use a catch can here"

no, you're not wasting our time at all :D

 

if you aren't making a catch can, then just put a little $1 fuel filter inline with the pcv valve and replace it every month or two (depending on how rooted your engine and oil is)

 

you do realise, it's probably not the pcv causing this. the crankcase ventilation system is designed so that the oily vapour bypasses the carb and gets presented manifold vacuum. when the manifold is in a low vacuum state (carb what), the pcv valve closes so shitty air can't reach the carb when you're trying to make power. and if you're getting inlet reversion so bad that you're forcing enough vapour back into the carb to jam it open, and that your engine is bad enough to actually make that much vapour in the first place, the pcv system is the least of your worries

Edited by Super Jamie

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