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No cylinder compression anymore

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Old Oct 5, 2017 | 10:08 PM
  #1  
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luxembourgrst
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Default No cylinder compression anymore

Well after my engine rebuild: 1.6 bloke
Woesener piston an Conrod (std compression)
Ported Head 3 seats valve
piper cam 285t
stage 2 turbo
group A coil
turbosystem Chip
mongosse
.........

All this on MFI (i know it s not the best)
I putted a 5th injector but i never could set it up and the engine stalls and never start again up and the result was a sinked engine with full of fuel fuel every where in the Sump intercooler pipes......
What i did i take the contaminated oïl off new filter new oïl but i couldn t start the engine anymore

I left it for 2 years few weeks ago i tried the trun the crankshaft and everythings was bloked couldn t turn the camshaft Nothing
so i put a smal amount of oïl into the spark plug holes and the engine turn free again by hand

but now my problem is the compression piston1 : 58 psi only
piston 2 : 58 psi
piston 3 : 58 psi
piston : 130 psi
By cold engine as it do not starts.

so i put again oïl in the spark plugs holes to see if the piston rings wich are NEW mayby bad running in because i used directly full syntethic oïl after rebuild .
piston 1 :116 psi
piston2 : 130 psi
piston 3 : 100 psi
piston 4 :175 psi

i took the rocker cover of Nothing special to see

So what going on ? piston rings fucked?

many thanks guys

(sorry for all thes threats open )
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Old Oct 5, 2017 | 10:14 PM
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From: 'straya
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Bore washed with all that excess fuel sloshing about.

Probably rebore, new rings & pistons, and maybe more.
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Old Oct 6, 2017 | 11:53 AM
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agree with above
rebore and pistons or source another block
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Old Oct 6, 2017 | 03:27 PM
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I only drove it like this for one day. I hope its only the piston rings. What about the crank bearings.

I gonna have a look.

Fuel in oil can be very dangerous even for the turbo...
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Old Oct 7, 2017 | 01:38 PM
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Fuel wash would of stoped oil cooling and lubrication cause your engine build to be scrap and now needing a rebuild. Who did the original build was it built to a good tollorance etc to start with ?
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Old Oct 8, 2017 | 09:29 AM
  #6  
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there is one picture i was thinking it would be worst after the rebuild the engine was running like only for 1 hour and then this happend with this overfuelling With the finger i can not fell any scratch .. it s only skinrust as the engine was not running for 2 years and without oïl protection as it was wash of by the fuel...
i gonna make a honning and check the bore sizes .....

and gonna chack for sure the big end and main bearings ....
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Old Oct 9, 2017 | 09:55 AM
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for me it looks like the cylinders are full of rust = dead engine, so a rebore and oversize pistons and rings, ore find a new block and have that bored to pistons and fit new rings
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Old Oct 20, 2017 | 09:07 AM
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If you went oversize pistons when you built it 2 years ago there will be no bore wear and a hone might be enough... But probably not, the rust will probably be deeper than the tolerance for a hone and the rings themselves may be damaged too
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