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Old Jun 3, 2012 | 07:32 PM
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Default Bottom end has failed

Evening

After only owning my Blobeye STI UK for about 12 weeks the bottom end has let go and started knocking, It was rebuilt at 42k after it melted a piston, Its only on 57k now. It was rebuilt with Uprated oil pump, Wossner pistons, H Beam rods, JDM Crank, 2 Heads etc and i have all paper work etc for the build, It came to a total of just under 6K....

Car had plenty of oil in, even though it does use a little. Always checked and topped up.

My question is what sort of parts am i going to need, Will the crank be dead??

I understand its a hard 1 to answer without stripping it down but i have spoken to the builder and he has said new crank, rods, bearings, and oil pump at least.

Any ideas of prices for this sort of work?

Car is a 2003 STI UK running 360bhp

Cheers

Last edited by Jacko4130; Jun 3, 2012 at 07:33 PM.
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Old Jun 3, 2012 | 07:43 PM
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untill engines split no way of knowing what is and isn't salvagable
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Old Jun 3, 2012 | 07:44 PM
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Was the oil modine replaced last time?
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Old Jun 3, 2012 | 07:52 PM
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Originally Posted by d4vidh
Was the oil modine replaced last time?
I would have thought so, there was no expense spared by the last owner looking at the paper work, Engine was built by Carnetix in melton who from what i can find seem to know there stuff.
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Old Jun 3, 2012 | 07:57 PM
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Agree Carnetix know their stuff.
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Old Jun 3, 2012 | 08:01 PM
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I'm taking the car to them this week to see what they say is needed to sort it.

Anybody had the say sort of problem and what was needed to repair?
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Old Jun 3, 2012 | 08:23 PM
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Seems odd to let go after just 15,000 miles. It's important to work out why. I guess it's hard to say whether the previous owner looked after it properly, warming it up before thrashing it and using good quality oil, but you would expect so after spending that much!

Its worth replacing the oil pump as it may have failed, or be full of swarf which can damage the seals. Obviously needs bearings, all new gaskets, may need a rod on the end that's let go, and may need a crank depending on whether it's completely spun a bearing or weather it's just one that's worn out super quick?!

Either way like I said make sure you get to the bottom of why it's failed so quickly.
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Old Jun 3, 2012 | 08:32 PM
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I hope its the pump that has failed, it was sat at traffic lights when pressure just dropped and defi gauge picked it up.

If the bearing has not spun should i get away with bearings and pump?
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Old Jun 3, 2012 | 09:07 PM
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not a good thing to happen pal to keep the costs down we could supply and fit a 2005 sti engine we have here with 40,000 miles on the clock for £1750 with fresh oil and a set of new ngk7b plugs, for an extra £180 we could change the belt and tensioner

pm me if this is any good pal also we can knock some of for your damaged engine in return

thanks scott@scoobyspares
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Old Jun 3, 2012 | 11:15 PM
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If it happened sat at idle, and you havent driven it since then or revved it particularly hard then yes, you'll probably find your crank & rods are ok.
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Old Jun 4, 2012 | 09:12 PM
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get her stripped and take it from there.

otherwise all just a guessing game really
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Old Jun 4, 2012 | 10:41 PM
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its possible you might be lucky if you didnt hear any knocking, its possible the screws in the oil pump have come loose - common problem

as you have said take it back to them and see what they can do.
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Old Jun 5, 2012 | 11:14 AM
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Originally Posted by stedee
its possible you might be lucky if you didnt hear any knocking, its possible the screws in the oil pump have come loose - common problem

as you have said take it back to them and see what they can do.
It is knocking mate.read the start of the thread
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Old Jun 5, 2012 | 01:37 PM
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I gotta say subarus are too fragile. 6 grand on a rebuild including the uprated oil pump and it still dies? I'm sad to hear after all that work you still have no guarantee that your safe.
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Old Jun 5, 2012 | 01:47 PM
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Originally Posted by Lord Marshall
I gotta say subarus are too fragile. 6 grand on a rebuild including the uprated oil pump and it still dies? I'm sad to hear after all that work you still have no guarantee that your safe.
Thats why the reason for the original failure must be found.(if possible)chances are the thing that nuked the first engine also was the cause of the second failure.
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Old Jun 5, 2012 | 09:14 PM
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Piston melted due to poor fuel on the first rebuild, So i thinks its just bad luck.
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Old Jun 5, 2012 | 09:51 PM
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to add to my post above, the knackered engine you have at the moment can be used as a part ex to make this even cheaper

scott...
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Old Jun 5, 2012 | 10:06 PM
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I'm not putting a used standard engine in my car thanks, Will rebuild what i have after some good advice from people.

cheers
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Old Jun 6, 2012 | 03:13 PM
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Originally Posted by poolio74
Thats why the reason for the original failure must be found.(if possible)chances are the thing that nuked the first engine also was the cause of the second failure.
I agree but I doubt it's the pump as some are saying because the original rebuild included an uprated pump. Still sad for the owner though. I hope he finds out what caused the failure.
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