This one has me a little stumpted, I know the engine is pretty dam tired, but I was hoping to save it for a little longer. It's a T1 1600 TP, AS series.
I know there's no easy fix to the smoke problem, but what would cause the oil to piss out of the over flow tube under rev ?
I think it may be beyond saving, any suggestions?
Thanks in advance.
Peter / Bones
that is a LOT of by pass
Is it severly over filled???
Futue te ipsum!!!
sounds like its got chronic blowby which gives compression in the sump hence oil coming out the overflow 🙁
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https://www.facebook.com/FlatFourcheck your crankcase breather. They often get pretty grimey and blocked. Give it a clean up/make sure its venting otherwise that is some cronic ring blow by.
76camper wrote:check your crankcase breather. They often get pretty grimey and blocked. Give it a clean up/make sure its venting otherwise that is some cronic ring blow by.
even if the breather was totally blocked i would only expect it to come out from the pulley
this sounds SICK!
Futue te ipsum!!!
Make sure that metal louvered gasket thingy is fitted under the gennie post and its oriented the correct way.
The hole in the carnkcase below the gen post looks directly down at the rotating cam gear and since the oiling system of the engine squirts directly onto the gears, oil slings up off the gear.
This could explain some of the oil.
if the engine was that shagged and pressurising the sump then oil will piss from the front pulley as well since there is no seal in there.
L8tr
E
Im not a complete idiot, quite a few parts are missing....
Also the rocket covers seem to lift off slightly under rev, causing oil to piss out every where?
I think she's shagged !
Bizarre wrote:that is a LOT of by pass
Is it severly over filled???
no
pod wrote:sounds like its got chronic blowby which gives compression in the sump hence oil coming out the overflow 🙁
Never heard of a blowby, does this mean the top end or the bottom end is nakered, or both?
Means your rings arent sealing and the combustion gases are getting past into your crank case. 'blowing by' the rings....
have you done a compression test? Must have almost no compression with the symptoms your mentioning if blow by is the cause...
i had areally stuffed head and that was what happened blew of a rocker cover etc
sorry but rooted seems to fit the ase
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Bone Collector wrote:Also the rocket covers seem to lift off slightly under rev, causing oil to piss out every where?
I think she's shagged !
Ahhh I dun think so M8. If there was enough blowby to lift the rocker cover then it wont run. There should be so much air/oil/smoke coming out of the breather pipe.
I suspect that your breather is blocked.
You absolutely sure that the breather has not clogged up up underneath the filler cap.
I just cant imagine that the engine would be running with enough pressure in the crancase to lift the rocker covers.
L8tr
E
Im not a complete idiot, quite a few parts are missing....
I've seen engines run quite well with massive ammounts of blowby actually... 2L Kombi engines, 202's etc...
The 202 in my VH Commodore had rediculous blowby from stuffed rings but even it still managed to pull 90k's fairly effortlessly.
But I can't say Ive ever seen a rocker cover lifted... there could never be that much crankcase pressure even if the rings didnt exist. :duh
I'd say youve got a combination of shot rings, maybe a clogged breather, and rooted rocker covers... my LH one used to pour out stupid ammounts of oil from a bent corner, even with a new gasket. And it has a good top end.
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[img]http://i23.photobucket.com/albums/b366/cCheck tension of rocker cover retaining springs? preferably while replacing gaskets & adjusting tappets.
Also, sometimes rings can get a bit gummed up and stick in their grooves, to free them up you could try very slowly pouring a bottle of nulon E20 down the carby with motor revving at about 2 grand. This will create a fair amount (a lot) of smoke out the exhaust so do your neighbours a favour and go find a paddock somewhere.This will also give the heads a pretty good de-coke. Result of all this internal gunge removal will mean an oil change is required afterwards.
I would still follow all the previous advice but the above may buy you some engine life while you save up for a rebuild. Probably a good idea to chuck another bottle of nulon in with the new oil after change, this time down the oil filler tube where it's supposed to go. Nulon E20 costs around ten bucks a bottle from all the usual suspects like supercheap & repco.
[edit] I use a bottle every oil change and do the carby thing once a year. As well as protection from wear it will keep gaskets and seals soft and pliable. (dont expect any product to fix completely knackered ones)
Matt.
[ Edited on 10-10-2006 by Matt Ryan ]
I thought Nulon E20 was oil treatment...? Not carby/ring cleaner...?
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Yes, VWCOOL, It is an oil treatment.
You can achieve the same effects by putting water down the carby but using nulon is much gentler and gives some wear protection at the same time, like most oil treatments it also contains stuff to counteract gum deposits. Basically you are creating a series of sudden falls in combustion temperatures, causing gunk to contract, dislodge itself & break up.
The trick is to pour very slowly or the engine will stall.
Matt.
I've seen a rocker cover lift up and piss oil everwhere, the cause was a blocked oil breather.
like a few have said check the tension of the bails and also rocker covers/heads sealing faces for little nicks and squareness
it doesnt make sence tho, an engine with enough blow by to pop rocker cover gaskets shouldnt run and if it did only just :o
matts idea is good to
i use the water method but u gotta be real careful doing it
with a nice hot engine running at about 3 grand a spray bottle spraying water down the carby throat steam cleans and decokes it.
If u;ve ever replaced a blown headgasket u'll know how well water can steam clean an engines internals
-Joel
Thanks for th help guys, the plan is to do a snappy strip down, chuck a set of rings at it and give the whole thing the once over checking for blockages etc.
Thanks again
Peter / Bones
