focijohn
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| posted on 24/2/09 at 06:33 PM |
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Seized engine (duratec 2.3)
Hi y'all,
Guy from my work has a 7 with the above engine in it (brand new). He was buzzing around the other day and noticed that it was holding back, for some
reason he looked over at the dials and guess what.... no oil pressure. He took the engine out and its not good partly because the oil pump is fine,
also the mouting shopping lists.
Question really is has anyone had anything like this happen to them using this engine?
It not had the easyest life to begin with as he had to run it at 2000rpm for 20 minutes to work harden the cams and then its next outing was to the
rolling roads.
Must mention that hes recently put a shortened sump on it etc but when the oil was drained he said that there was a good 4 3/4 ltrs of oil came out
and no broken drives to the oil pump etc. And a few minutes before this happened he had limited it but surely...?
Cheers
John
[Edited on 24/2/09 by focijohn]
Anyone going slower than you is an idiot. Anyone going faster than you is a maniac.
Too many targets but too few bullets.
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Paul TigerB6
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| posted on 24/2/09 at 06:42 PM |
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Could be several things i guess - most likely i recon is that the oil pump hadnt primed properly , and that could itself be down to a few things.
Could be a problem with the oil pickup pipe for starters.
I doubt the forum will daignose the issue anyway - provide some options to look for but thats about it
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focijohn
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| posted on 24/2/09 at 06:48 PM |
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Thats all im after really, because if he does go ahead and rebuild this engine then its still going to have the problem that it has now.
Any ideas are good ideas.
[Edited on 24/2/09 by focijohn]
Anyone going slower than you is an idiot. Anyone going faster than you is a maniac.
Too many targets but too few bullets.
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big_wasa
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| posted on 24/2/09 at 07:00 PM |
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Flak is looking for one of these engines and all the breakers having been telling him there is a shortage due to them knocking the big ends out.
will see if I can find the thread.
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Paul TigerB6
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| posted on 24/2/09 at 07:35 PM |
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Another potential - did he tighten up the camshaft sprokets properly after replacing the cams?? If they slipped then that could have siezed the engine
also.
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flak monkey
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| posted on 24/2/09 at 07:38 PM |
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Several scrap yards have independantly told me good 2 litres are hard to get because they knock the big ends out quickly for some reason (The 2.3
bottom end is of the same design).
Not sure why. Could be the design of bearings they use? Think the standard ones are white metal, cosworth sell heavy duty ones through through burton
power which are the lead/copper type at about £60/set.
Could also have been that the oil pump didnt prime when the engine was first started which damaged the bearings then the hard life its had has lead to
them completely failing
Is worth taking it apart and finding out what has failed, may help diagnose the problem.
Could even be something as simple as a blocked oil way.
David
Sera
http://www.motosera.com
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CairB
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| posted on 24/2/09 at 07:52 PM |
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I would be tempted to check that the shortened sump was not restricting the oil supply to the pump.
I think that some designs use the sump to mate to the pump to create the pickup path.
I used a 2.0l pickup for my home made steel sump.
He could possibly check the pump and feed by removing the chain drive to the pump and operating the pump with a drill to check that it can generate
pressure.
The bolt on the front of the crank provides enough clamping force to friction drive the chainwheels for the oil pump, cam and the front pulley.
This bolt is done up v tight.
Diamond encrusted friction washers should be fitted between the friction driven items on the crank as well as the cams.
I don't think they are fitted as standard but it is recommended to fit them if wilder cams are installed.
Hope he gets it sorted.
Cheers,
Colin
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ashg
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| posted on 24/2/09 at 11:49 PM |
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my mate runs a garage and he can supply an endless amount of 2.0 duratec's with shagged bottom ends. i was going to take one and sort it but
after phoning ford and getting the prices for recon bits it wasnt worth it. they fetch good money down the scrap metal place as they are all ali 
Anything With Tits or Wheels Will cost you MONEY!!
Haynes Roadster (Finished)
Exocet (Finished & Sold)
New Project (Started)
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02GF74
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| posted on 25/2/09 at 07:24 AM |
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I reckon the oil pump priming is binary - either it will or it won't. If it did't prime, then engine would have run for about 30 seconds
at most.
Take a look at the shortened sump.
Was the engine rebuilt, if so, what was replaced?
Was the oil pump reassembled correctly? On the Zetec there is some feelr guage messing to set it up properly.
Also if pick up was modified or refitted, check gastets and pick was fitted correcltly. Check pick up is clear.
There is a running in procedure that should be followed -was this done?
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procomp
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| posted on 25/2/09 at 07:50 AM |
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Hi
The first Mod that should be done when using this engine is to get the crank pulley keyed on to the crank.
Cheers Matt
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Marcus
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| posted on 25/2/09 at 12:19 PM |
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Sounds to me that if the sump has been shortened, maybe the oil pickup has too, if there's a pin hole in the weld (if it has been welded) then
it will pull air and shag the engine. A few miles may have opened up a hole or loosened the pickup.
Marcus
Because kits are for girls!!
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focijohn
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| posted on 25/2/09 at 06:45 PM |
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The engine was bought ex ford bran new. And the sump and pickups etc was bought as a set cant remember where from .
Ill pass the comments on and see where it leads him...
Thanks all
Anyone going slower than you is an idiot. Anyone going faster than you is a maniac.
Too many targets but too few bullets.
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