Oil in cyclinder 1
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Hi peeps. Mostly stated as above but its a strange problem as it has had me wondering non stop for last two days with constant searching on here. Basically trying to fit twin 1" 3/4 carbs and this is where it started from.
It was only running from one carb (right one) or fueling more like. After finding out by noticing that 1 carb is fueling and the other was blocked (left one) I was doing some checking and then noticed a fare amount of oil on my plugs from cyclinder's 1 and 2. Made me think head gasket ... so did a compression test and getting 225 psi on all 4 cyclinders was the result I was looking for.
So now I'm baffled as the engine came from MED built so I'm thinking could it be leaking through an oil-way? Well to my knowledge there's no oil ways near by right? baring in mind its in both cyclinders.
All I did was let the engine run to drain the fuel from the right carb as the left is dry and this happened lol. Wish I hadn't now. Anyways its an 11 stud head, and I'm wondering on taking the head off of it and checking the gasket cause I'm confuddled, or could it be leaking through a cracked head?
There is oil way on the rocker pedistal on number 2 cyclinder right? just what is funny, is it never did it before, never burnt oil, only loss of oil was through a few leaks here and there and the oil pressure being 50-75 psi on my gauge so all seems normal.
Just cant understand where it has all come from. its quite alot sitting on the pistons. Hopefully someone can show me the light on whats going on here.
Otherwise anyone know great 1380cc head gasket

http://photobucket.com/quintonrose

alright fella, have you check all your valve stem seals? and have you been able to have a look down into the chambers with a torch? if so can you see anything? what is the conditon of all the plugs like? i have a spare head mate if you cant to try it to see if it is the head thats fooked. it is a big valve head as well but needs a little clean up.

paul.

p.s put in your profile where your from

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I'm thinking valve stem seals but if you see the amount of oil sitting on the piston, its impossible for it to suck that much through there surely. Your talking a puddle of oil. I'm just taking carbs off atm, still in search for 7/16 socket in case this head does come off, bloody arp bolts. Noticed that the moly lube wasn't used either. argh bloody MED.
Will keep this updated.

http://photobucket.com/quintonrose

I would either get both carbs working and see if the "oil" is still there after a run or put the single carb/manifold back on and again, see if it's still there after a run.

If you had twins on and one wasn't passing fuel, those two cylinders would have been drawing from the working carb through the balance pipe (assuming your manifold has one) and you would have been forced to set the mixture wrong to compensate.

I wouldn't take the head off just yet if all readings are 225, sort the fuelling out first, then see if the problem is still there.

Schrödinger's cat - so which one am I ???

rings fooked from running lean?? could that pass that amount of oil up?

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if rings where stuffed then compression would be down wouldn't it?

http://photobucket.com/quintonrose

Schrödinger's cat - so which one am I ???

But Rod he said it's the right carb which was working and cylinders 1 and 2 are on the right.
So could it have been massively overfueled?But surely that would be noticeable.Me thinks it would smoke a lot.

Quinton try poking a straw down a plug hole on 1 or 2,get the end in the oil or whatever it is and place your finger over the other end so some "oil" gets held in the straw. Then you can see what it is.

Warning:Stig in Training

1" 3/4 twins sound a fair old size for a 1380?

i would say its a red herring. just get the old girl back up and running with whatever you have.

Right just got the twin carbs off and the oil has come from the right carb. I have got my breathers connected to the carb's as one way of releaving crankcase pressure as it is really high.
Question I want answered if possible is, can my carb's suck oil from the engine? the right carb's connected to the timing cover breather is where the oil seems to be coming from. Now I remember correctly when I took it off a while back I stuffed whole lot of guaze down there to prevent such a thing happening. Am i doing something wrong with the sisuation?
I ended up re-torquing my head nuts cause I wasn't happy and ended up finding the arp studs where loose anyways ... so they all torqued to the required setting's.
As for the twin mainfold, it has got a balancing tube on it. See i use to run these same twins on my old 1275 and the throttle response was amazing, and then yesterday when I took it out it for a run, it was even better than the single I had on.

http://photobucket.com/quintonrose

I suppose they could suck oil,if the breathers are chucking out quite a bit of the stuff.

Warning:Stig in Training

sure its not damper oil from overfilling?

OK, from your additional information.... if you have the crankcase breather connected to the "right" carb - I assume you mean right looking from the outside front, ie, 1&2 cylinders - and you have a known problem with crankcase pressurisation, AND the "left" carb (cylinders 3&4) isn't fuelling right, so you've offset the mixture to the right and it's pulling oil in, then...... yes, expect oil in 1&2 cylinders.

It seems you have two problems, each masking the other.

Too much oil vapour from the crankcase and something wrong with one of the carbs.

Stuffing gauze down a breather does nothing to overcome a fundamental problem, the reason crankcase breathers have a gauze "filter" is that it acts as a flame trap - in case of a backfire through the carburettor, it prevents the sump (gearbox) exploding from the flame going backwards down the breather pipe.

But if the crankcase needs that much venting that it's putting so much oil up to the (one) carb that the pistons on that carb are getting covered in oil, find out the reason for such a high crankcase pressure.

Rod.

Edited by Rod S on 2nd Aug, 2008.

Schrödinger's cat - so which one am I ???

simple way to test, just vent the breather to air

I dont think I have a high crankcase pressure, just running the breathers on a air filter might cut a few pipes away in the engine bay but it does make everything around it black and I cant be arsed with the cleaning all the time so I thought I'll put it back to how it was plus this might decrease the crankcase pressure if there is any.
Anyways I stripped both carbs and checked their floats and needles etc, well there was a bit of dirt there and how the hell it got through all three of my filters I do not know.
Anyways thats all cleaned out, reset the floats and fitted back on. Just bloody wont start now, but then patience is a vitue they say so just waiting for battery to get its charge back then having another go. As for overfilling the dash pots, it's far too much oil that was sitting on the pistons for it to be that plus I use a thin type oil which wasn't what was on top of the piston. I'll keep you updated in what's happening but more advice is welcome :)

http://photobucket.com/quintonrose

right all sorted, cheers for that chaps. Was plugs in the end, bosch super 4's, dunno why I got them lol. Anyways run's sweet now so thanks for all the help along the way. :)

http://photobucket.com/quintonrose

Good to hear that mate.
Have fun with it

Warning:Stig in Training

at least you have some good plugs after we finnaly realised which grade you needed lol :) hope the tune up goes well

Drives
-Ford S-max Mk2 Ecoboost
-Rover 100 VVC #2 - track project

Searching is all you need on TurboMinis