MikeFellows
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| posted on 14/1/12 at 06:58 PM |
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the bits look like cutting disks off a dremel
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mcramsay
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| posted on 14/1/12 at 07:38 PM |
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I found these in the sump, once it was removed, I thoroughly checked the sump and cannot find anything these parts would have come from, also the
casting marks on the items do look identical to the rough castings on the non polished parts of the zetec head, but I do agree I cannot think how
items that large would get down to the sump, I think I will do about more investigating tomorrow and see if I can find the guilty holes. If not I will
box up and forget about it until it gets to the point that it is an issue
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AndyGT
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| posted on 14/1/12 at 07:47 PM |
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quote:
Originally posted by MikeFellows
the bits look like cutting disks off a dremel
+1
Do you have any enemies? People you share a garage with? Now or over the past since you've had the engine?
nothing is impossible
everything is possible
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ashg
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| posted on 14/1/12 at 10:34 PM |
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thats defo caused by bolts that are too long. i have done exactly the same thing on a fiat block when i was a lot younger. just clean out the sump
and check for fragments under the cam cover. it will be totally fine.
Anything With Tits or Wheels Will cost you MONEY!!
Haynes Roadster (Finished)
Exocet (Finished & Sold)
New Project (Started)
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stevec
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| posted on 14/1/12 at 10:51 PM |
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quote:
Originally posted by AndyGT
quote:
Originally posted by MikeFellows
the bits look like cutting disks off a dremel
+1
Do you have any enemies? People you share a garage with? Now or over the past since you've had the engine?
Are you taking the piss?
Steve
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NS Dev
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| posted on 14/1/12 at 10:52 PM |
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Don't know zetec heads very well but it is possible on most heads for bits to get into the crankcase via the head oil drains, which are pretty
big. If a bit had popped off in the oilway in the head and got washed down the oil drain with returning oil. I'd look very carefully at the head
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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AndyGT
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| posted on 15/1/12 at 03:43 AM |
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quote:
Originally posted by stevec
quote:
Originally posted by AndyGT
quote:
Originally posted by MikeFellows
the bits look like cutting disks off a dremel
+1
Do you have any enemies? People you share a garage with? Now or over the past since you've had the engine?
Are you taking the piss?
Steve
No, not taking this piss, just exploring ALL possibilities!! Some people are this nasty.
I mean, I know of a mechanic who once drained the oil out of someones tweeked Subaru in the early hours of the morning just because he "stole
his girlfriend". There are some pathetic people out there.
I just hope you haven't permanent damage to your engine!!
nothing is impossible
everything is possible
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omega 24 v6
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| posted on 15/1/12 at 09:47 AM |
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Its gotta be bolts to long pushing the casting of into the sump. Again is it alloy or cast iron ( head or block) it looks like iron in the pic and
probably from a 6mm bolt scaling it agaianst your finger. ( unless you've got fingers like an ape LOL)
If it looks wrong it probably is wrong.
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rusty nuts
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| posted on 15/1/12 at 09:52 AM |
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I think the first thing to do is decide what the bits are made from as already suggested. If they are cast iron then they come from the block , if
ally from the head. Remove each bolt that you have disturbed one at a time and probe /measure to the bottom of the hole, any that have no bottom are
likely to be the home of the bits and can be sorted out accordingly. Has the engine lost any coolant , if not then the cause of the white oil is
likely to be condensation or cheap oil.
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Peteff
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| posted on 15/1/12 at 10:01 AM |
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Do any of the manifold studs or bolts break into an oilway in the head ? Take a few out and poke a welding wire down to see how far they go. If the
engine runs well I wouldn't be worrying too much about it. You'll get the mayo in any engine that runs for short periods without getting
really hot no matter what oil you put in it.
[Edited on 15/1/12 by Peteff]
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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omega 24 v6
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| posted on 15/1/12 at 10:02 AM |
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I'd also say that the bits of metal in the sump have more than likely come from the same area/source.I'd doubt the engine is scrap but I
would give everything a good flush out a couple of times for peace of mind.
If it looks wrong it probably is wrong.
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Paul Turner
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| posted on 15/1/12 at 10:08 AM |
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No parts in the cylinder head have a dark finish as shown in the photo's, the head is a totally natural alloy finish inside and out. If they are
magnetic they are from the cast iron block but internally that has an as cast finish from memory.
My money is still on a couple of bits from elsewhere finding their way in somehow when the sump was off. Still don't think the oil returns are
big enough to allow bits that big to get from the cam area into the sump plus they would likely cause cam/follower damage before finding their way
down.
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mcramsay
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| posted on 15/1/12 at 12:54 PM |
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the dark finish in the photos is due to the lighting, they are bright alloy, i have run a magnet over the particles and they are not magnetic which
points to the cylinder head.
there is no way on earth i fitted the sump with the metal fragments in there already. i spent hours cleaning it, its something i would have instantly
seen.
im going to start removing bolts one by one and try to find the offending holes, then i will seal up said holes and box everything back up and run the
engine untill it decides its time for a piston to leave the block.
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omega 24 v6
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| posted on 15/1/12 at 03:24 PM |
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Be careful sealing any holes. As said if its into an oilway and you inject sealer/gunk of any kind you may do more damage than good.
If it looks wrong it probably is wrong.
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mcramsay
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| posted on 15/1/12 at 03:34 PM |
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well i have found the problem,
Basically its on the top row of exhaust manifold to cylinder head fixing bolts, for what ever reason 3 out of 4 bolts along the top have punctured
into the cylinder head. breaking the casting directly aside the valve spring.
basically if you look through the exhaust manifold bolt holes on the cylinder head you can see one of the exhaust valve springs through the holes, on
cylinders 2, 3, and 4.
looking in from the other side of the head you can just see behind the valve spring and there is evidence of small chunks of casting missing, although
its really really hard to see, but you can just make out some swarf and ragged edges.
the problem i have now is obviously exhaust gases passing into the cylinder head oil system (technically shouldn't happen if the gasket is
holding) / oil leaking out the bolts on the exhaust. will normal thread sealant handle exhaust temperatures?
also 3 holes have evidence of the casting breaking off, however i have only found 2 bits of casting?
one last thing, how the hell did the casting chunks manage to get from the cylinder head to the sump without casing damage?
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omega 24 v6
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| posted on 15/1/12 at 03:42 PM |
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well at least you've found the problem and IMHO it's not an engine killer. So studlock the threads of the studs and find that last missing
bit ( which may have been removed at the engine build stage mind if it had been seen). On the pluss side if its not floating about the head area then
its unlikely to do any damage farther down as it will be on the sump/pickup side which is well enough filtered.
If it looks wrong it probably is wrong.
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mcramsay
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| posted on 15/1/12 at 03:46 PM |
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yeah im going to go and have a good look for it now, if its going to be anywhere it might be some where near the oil return, who knows i will spend
some time looking. at least i found the issue. made a rubbish weekend a little bit better, at least its not new engine time.
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