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+--- Thread: Nialls supercharged GTi6 - project tidy up (/showthread.php?tid=3684)
RE: Nialls supercharged GTi6 - Not quite what i expected - Niall - 09-03-2014
Well. Its dead already!
Was adamant that the knock was from the rear top somewhere. Really sounded it but clearly not....
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Not to fussed about the damage. I can deal with that and I've caught it before any serious damage is caused but what worries me the most is what caused it in the first place.
RE: Nialls supercharged GTi6 - Dead already - mikey b - 09-03-2014
I know it's a pain but I would check the rest as well
RE: Nialls supercharged GTi6 - Dead already - Martin306 - 09-03-2014
FFS Niall!
That damage is 100% lack of oil. The top image is severely overheated, the next one is just overheating a little so it gone shiny
They go shiny on the back as well cos they start jiggling about when they start sticking.y u no oil pressure gauge?
Reminds me of my TUD5
when it died
RE: Nialls supercharged GTi6 - Dead already - Niall - 09-03-2014
lol i knew it was lack of oil pressure but why it has happened i don't know
RE: Nialls supercharged GTi6 - Dead already - Grant - 09-03-2014
(09-03-2014, 06:28 PM)Niall Wrote: lol i knew it was lack of oil pressure but why it has happened i don't know
Because there wasn't enough pressure to pressure the oil to places requiring pressured oil?
RE: Nialls supercharged GTi6 - Dead already - Tom - 09-03-2014
(09-03-2014, 06:32 PM)Grant Wrote:(09-03-2014, 06:28 PM)Niall Wrote: lol i knew it was lack of oil pressure but why it has happened i don't know
Because there wasn't enough pressure to pressure the oil to places requiring pressured oil?
Try saying that after a few beers....
Shit news Niall, dont lose hope, weird how thats happened. Also weird how it lasted so long with no oil :/
RE: Nialls supercharged GTi6 - Dead already - Niall - 09-03-2014
There was oil there. Thats the weird thing. When i took the bearing off, it was nicely lubed up (giggidy) so all i can think is something has gotten in there or there was a lack of pressure. Going to whip the pump off tomorrow and the other two caps and have a good look and see if there is anything wrong with the pump
RE: Nialls supercharged GTi6 - Dead already - Paul_13 - 09-03-2014
Got a spare engine here mate if you need it.
Mint block / crank /pistons etc
RE: Nialls supercharged GTi6 - Dead already - Niall - 09-03-2014
Cheers Paul but i don't think i will need it. The two rods I've seen are fine, block is fine. May need a crank though!
RE: Nialls supercharged GTi6 - Dead already - Piggy - 09-03-2014
Gutting dood. Feeling for you.
RE: Nialls supercharged GTi6 - Dead already - Paul_13 - 09-03-2014
Let me know
RE: Nialls supercharged GTi6 - Dead already - jammapic - 09-03-2014
Ahhh shit.
Sorry to see that mate. If you need a crank, I've got a spare here.
RE: Nialls supercharged GTi6 - Dead already - Niall - 09-03-2014
Thanks guys,
Jamma, ive sorted a crank but thanks for the offer. She will live again very soon!
Nialls supercharged GTi6 - Dead already - devils_fuel - 10-03-2014
Oh mate
RE: Nialls supercharged GTi6 - Dead already - 7057sam - 10-03-2014
Glad to see you haven't giving up yet, I'd binned it by now
So was it starving the engine of oil when you got it mapped? Would need to do that again? Just out of curiosity how much boost was it running?
RE: Nialls supercharged GTi6 - Dead already - Niall - 10-03-2014
It was running 3psi with a chronic leak so should see 5ish once the leak is done.
I suspect it's happened because it wasn't bedded in properly and it was given hell on the dyno. Will find out tonight.
RE: Nialls supercharged GTi6 - Dead already - Tom - 10-03-2014
Surely that wouldnt cause damage like that? :/ If oil is being pumped everywhere flat out, i cant see that failing like it has
RE: Nialls supercharged GTi6 - Dead already - cully - 10-03-2014
nial check your mains are fitted right
if i remember mine would only fit one way round to let oil flow
block oilway/bearing hole/bearing grove/ main tranfer drilling to bigend
RE: Nialls supercharged GTi6 - Dead already - Niall - 10-03-2014
They are fitted correctly as I fitted them the wrong way round to start with. Will be taking the caps off later to check the condition of them
RE: Nialls supercharged GTi6 - Dead already - mattgreene - 10-03-2014
just a though, could it be the oil over heating? obiously as the oil gets warmer it loses its viscosity, and can cause burning of shells and picking up on the crank, just a thought
RE: Nialls supercharged GTi6 - Dead already - Martin306 - 10-03-2014
(10-03-2014, 06:29 PM)mattgreene Wrote: just a though, could it be the oil over heating? obiously as the oil gets warmer it loses its viscosity, and can cause burning of shells and picking up on the crank, just a thought
He had loose main bearing caps, reducing pressure to the rod ends. Just hasn't admitted it on his blog yet
RE: Nialls supercharged GTi6 - Dead already - Grant - 10-03-2014
(10-03-2014, 07:54 PM)Martin306 Wrote:(10-03-2014, 06:29 PM)mattgreene Wrote: just a though, could it be the oil over heating? obiously as the oil gets warmer it loses its viscosity, and can cause burning of shells and picking up on the crank, just a thought
He had loose main bearing caps, reducing pressure to the rod ends. Just hasn't admitted it on his blog yet
You have a sixth sense or something?
RE: Nialls supercharged GTi6 - Dead already - 306Dan - 10-03-2014
He was talking about it in the chat earlier this afternoon
RE: Nialls supercharged GTi6 - Dead already - Niall - 10-03-2014
(10-03-2014, 07:55 PM)Grant Wrote:(10-03-2014, 07:54 PM)Martin306 Wrote:(10-03-2014, 06:29 PM)mattgreene Wrote: just a though, could it be the oil over heating? obiously as the oil gets warmer it loses its viscosity, and can cause burning of shells and picking up on the crank, just a thought
He had loose main bearing caps, reducing pressure to the rod ends. Just hasn't admitted it on his blog yet
You have a sixth sense or something?
Seems that way! lol
Yeah pretty much what Martin said. The main bearing supplies oil to the big end bearing. In my case, one of the bolts wasn't torqued up properly meaning oil pressure wasn't building up in the main bearing journal and thus, not being moved on to the big end.
Couple that with heavily diluted oil with petrol from a massively over fuelling ecu map and getting the engine red hot on the dyno and here we are today!
RE: Nialls supercharged GTi6 - Dead already - Martin306 - 10-03-2014
(10-03-2014, 08:05 PM)306Dan Wrote: He was talking about it in the chat earlier this afternoon
totally ruined it man!
(10-03-2014, 08:07 PM)Niall Wrote:(10-03-2014, 07:55 PM)Grant Wrote:(10-03-2014, 07:54 PM)Martin306 Wrote: He had loose main bearing caps, reducing pressure to the rod ends. Just hasn't admitted it on his blog yet
You have a sixth sense or something?
Seems that way! lol
Yeah pretty much what Martin said. The main bearing supplies oil to the big end bearing. In my case, one of the bolts wasn't torqued up properly meaning oil pressure wasn't building up in the main bearing journal and thus, not being moved on to the big end.
Couple that with heavily diluted oil with petrol from a massively over fuelling ecu map and getting the engine red hot on the dyno and here we are today!
I did wonder if petrol had diluted it a bit when I was reading about it being overly-rich before it was mapped
RE: Nialls supercharged GTi6 - Dead already - Ruan - 10-03-2014
As said on whatsapp buddy, I reckon after long deliberation, that's crap behind the bearing cap, you can see the hotspot localised at the top, that's started picking up and has finally started to wreck the shells...
Hence why the bearings look relatively OK in other places...
You know what to do... New crank and bearings and get the rod checked...
Nialls supercharged GTi6 - Dead already - Alee83 - 11-03-2014
Not sure if anyone has mentioned it yet but... You checked your Racoon filter?
RE: Nialls supercharged GTi6 - Dead already - 7057sam - 11-03-2014
(11-03-2014, 06:08 AM)Alee83 Wrote: Not sure if anyone has mentioned it yet but... You checked your Racoon filter?
RE: Nialls supercharged GTi6 - Dead already - Grant - 11-03-2014
I did tell him this when he was stripping the bottom end back, but the poor boy was in the midst of (a perfectly justified) sense of humour failure
RE: Nialls supercharged GTi6 - Dead already - Niall - 11-03-2014
So, been to the engine shop today to collect my bearings and have them inspect a few bits.
Crank - ok (rod journal 1 cleaned up fine)
Rods - ok
Little ends - ok
Main bearings - ok
After inspecting the failed bearing, they are adamant it's failed due to heat and lack of lubrication caused by oil full of petrol when the engine was at it's most vulnerable.
My fault really as I should of run it in on the standard ecu and loom so hey ho! Lesson learnt.