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Author dewismotorsport's Corsa gsi turbo track car
Ian
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Registered: 28th Aug 99
Location: Liverpool
User status: Online
9th Sep 12 at 21:57   View Garage View User's Profile U2U Member Reply With Quote

I think I overtook your mate in the blue one.
dewismotorsport
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Registered: 16th Feb 08
Location: Coventry & Poole
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10th Sep 12 at 09:16   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Ian
I think I overtook your mate in the blue one.


Yeah that was his first outing in the car do wasn't pushing it to hard, as his brakes would fade after about 4 laps
dewismotorsport
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Registered: 16th Feb 08
Location: Coventry & Poole
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11th Sep 12 at 07:35   View User's Profile U2U Member Reply With Quote

Few more photos coming out, best one of the smoke


And the walk of shame lap :cry:
Col004
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Registered: 25th Jun 03
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11th Sep 12 at 12:19   View User's Profile U2U Member Reply With Quote

Whats the damage mate
possy
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Registered: 10th Feb 10
Location: wigan bhp vaux
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11th Sep 12 at 14:34   View User's Profile U2U Member Reply With Quote

U will build it bigger and better next time mate
dewismotorsport
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Registered: 16th Feb 08
Location: Coventry & Poole
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11th Sep 12 at 19:20   View User's Profile U2U Member Reply With Quote

Not sure of the damage yet as cars still in Coventry and I'm in Poole but hoping to have it back to work for next week.

Some good news, have managed to get hold of a new un used squirtered 86.5mm block with a balanced crank and new main and big end bearings for an absolute bargin big thanks to Stupink :beer:

Also a steel rod and arp's off Craig :beer:

So fingers crossed the rest are all alright
reecegsi
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Registered: 16th Mar 11
Location: birmingham
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11th Sep 12 at 19:34   View User's Profile U2U Member Reply With Quote

Glad your getting it sorted quick mate hopefully that's all you need fingers crossed! What was original spec of old engine?
Col004
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Registered: 25th Jun 03
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11th Sep 12 at 21:35   View User's Profile U2U Member Reply With Quote

Glad your sorting it bud.. Good man!
dewismotorsport
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Registered: 16th Feb 08
Location: Coventry & Poole
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12th Sep 12 at 13:43   View User's Profile U2U Member Reply With Quote

Cheers guys!

Brief spec of block and head:

Head:
XE cams
Double valve springs
Ported and polished
X20XEV lifters

Block:
.5mm over bore
Decked
Under piston oil squirters
Mahle pc forge pistons
Regal H beam rods
Arp main, rod, head studs
Cometic 1.9mm head gasket
Early XE crank balanced to flywheel and clutch

So aim is rebuild to same spec as before
possy
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Registered: 10th Feb 10
Location: wigan bhp vaux
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14th Sep 12 at 00:51   View User's Profile U2U Member Reply With Quote

how come your goin for x20xev lifters instead of xe/let ones and would it not be worth goin solid instead of hydrolics be able to give it a bit more death lol
dewismotorsport
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Registered: 16th Feb 08
Location: Coventry & Poole
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14th Sep 12 at 16:09   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by possy
how come your goin for x20xev lifters instead of xe/let ones and would it not be worth goin solid instead of hydrolics be able to give it a bit more death lol


That's the current spec of my engine above!

Tbh I want bigger cams and solid lifters but tbh it just boils down to money and I want to at least get some use out of it and then at a later date do the cams etc
dewismotorsport
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Registered: 16th Feb 08
Location: Coventry & Poole
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17th Sep 12 at 09:30   View User's Profile U2U Member Reply With Quote

Been gathering parts for the rebuild, new 86.5mm oil squirted block, balanced crank and new main and rod bearings



New rod and ARP 2000's


Unfortunately I wasn't able to get the 4x4 and trailer from work this weekend so wasn't able to collect the car but will have it this weekend coming so will know the exact state of the engine then
dewismotorsport
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Registered: 16th Feb 08
Location: Coventry & Poole
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26th Sep 12 at 18:29   View User's Profile U2U Member Reply With Quote

Well finally got my car back to work so started on the strip down

Engine out, will use this as a excuse to make a few mods to the bulk head for extra strengthening for the steering rack



First casualty I found was the radiator which a bit of the block had shot out into it


Quick bit of prep and all tigged up


This is the block damage where the big end has shot through, still have some of it as it was still attached to the crank sensor msl:


Head off and piston one is damaged, not to bad on the top but the skirt is trashed from where the snapped rod has mashed into it



4 bent valves, and slight burr on the edge near where the head gasket firing ring would sit but tbh that will clean up fine



Seriously over heated piston one big end crank, all others were fine with nice heathy looking bearings


Couple of the main bearings had odd almost bubbled effect on them but again not worn



Sump was in a shitty state with all the bearing shards in, the 8v plate had took a serious hit where the big end/rod had hit it


Repaired inside and out


Took the rest to bits and found what's left of the arp rod bolt, looks slightly purple so relates to the over heating but it's sheared clean off at the top of the thread section


Every thing stripped down and this is my scrap pile


So list of things I need are:
Mahle 86.5mm PC piston
Complete set of rings

And some service parts:
Inlet gasket
Exhaust gasket
Crank seals
8v sump gasket
Oil filter
6L Motul 300V 15w/50 oil

Took the z20let pump to bits to give it a good clean out in the kero bath, bits of bearing swarf in there so all cleaned out, also cleaned all the sump and pick up pipe out as well



New block with squirters, will clean up arp's and get it assembled to a point tomorrow, need piston and rings etc before I can fully assemble



Other random mod I've done is put the standard mirrors back on as I couldn't see anything out on track as my seat is now a lot further back so the little mirrors wouldn't allow me to see much
carl roper
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Registered: 17th May 09
Location: Newport Shropshire
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27th Sep 12 at 16:53   View User's Profile U2U Member Reply With Quote



you dont hang around, i take it the heads savable then?
dewismotorsport
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Registered: 16th Feb 08
Location: Coventry & Poole
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27th Sep 12 at 17:43   View User's Profile U2U Member Reply With Quote

Yes mate no point crying over it, ordering some new parts tomorrow so I can at least get engine nearly back together

Head needs 2 new valves but will replace all 4 on that cylinder to be on the safe side

[Edited on 27-09-2012 by dewismotorsport]
TimC909
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Registered: 8th May 10
Location: Skelmersdale, Lancashire
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28th Sep 12 at 20:28   View User's Profile U2U Member Reply With Quote

Are you going to drill the bearings or channel the mains for the squirters Adam?
dewismotorsport
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Registered: 16th Feb 08
Location: Coventry & Poole
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28th Sep 12 at 22:31   View User's Profile U2U Member Reply With Quote

The bearings I got with it are already drilled so will just use them tbh, it's a 50/50 thing pros and cons for doing it both ways, old block had grooves
corsadonk
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Registered: 4th Jul 09
Location: Marlborough, Wiltshire
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29th Sep 12 at 06:24   View Garage View User's Profile U2U Member Reply With Quote

Shame about the early crank.
steveboyslim
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Registered: 20th Sep 00
Location: herts
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29th Sep 12 at 09:11   View User's Profile U2U Member Reply With Quote

I would not advise using that oil pump, the A&E bearings and I would not drill the bearings.
If your engine had an oil cooler I would bin it.
Head will need a full strip including the oil gallery plugs, if there are some bent valves you may find some broken valve guides.
All the valves will want checking for straightness.
The bearings are not upto the correct spec for turbo engines even though they fit.
Oil pressure will be reduced with that oil pump, also the outer gear may fail.
The extra hole in the bearing can cause a wear problem as two hole so close cut through the oil film.
All the valves should be checked while the head is off as you may find others which may be slightly bent, using a feeler gauge will not tell you anything, the valves need to be spun to test for straightness.

Steve


PS if you have used a steel flywheel with a 'sweat fit' ring gear, if not already done, the flywheel will want balancing and I suggest you tig weld the ring gear in place.


[Edited on 29-09-2012 by steveboyslim]
dewismotorsport
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Registered: 16th Feb 08
Location: Coventry & Poole
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29th Sep 12 at 19:46   View User's Profile U2U Member Reply With Quote

Cheers Steve as per Vauxsport will do and gonna be in touch soon reference parts etc

I have a billet flywheel mate not two part type as you described
steveboyslim
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Registered: 20th Sep 00
Location: herts
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30th Sep 12 at 07:05   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by dewismotorsport
Cheers Steve as per Vauxsport will do and gonna be in touch soon reference parts etc

I have a billet flywheel mate not two part type as you described


That's ok then, I thought you may have the same as you bum chum Rich.

Steve
dewismotorsport
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Registered: 16th Feb 08
Location: Coventry & Poole
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30th Sep 12 at 10:29   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by steveboyslim
quote:
Originally posted by dewismotorsport
Cheers Steve as per Vauxsport will do and gonna be in touch soon reference parts etc

I have a billet flywheel mate not two part type as you described


That's ok then, I thought you may have the same as you bum chum Rich.

Steve


Ha ha no I bought a proper one
dewismotorsport
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Registered: 16th Feb 08
Location: Coventry & Poole
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5th Oct 12 at 13:00   View User's Profile U2U Member Reply With Quote

Block cleaned up and painted, same with sump quick coat of zinc based paint



Decided to hide a few wires as they were added after the loom was made :cry:


Ran them through the chassis rail down to the front, was a pain in the arse but worth it in the end


Decided to re seal the windscreen rubber as when going fast it pops out at the top, what a school boy error that was :cry: Turns out after I'd removed it its tucked under screen whilst being bonded in and once out wont go back in with screen in place so had to think on my feet and re seal and re fit seal after much swearing msl:


Removed the steering rack as in the past I have had problems with the steering rack cracking the bulkhead due to no power steering and sticky tyres, so gave it a quick seam weld


Also removed any remaining in used bolts/brackets and gave it a fresh lick of paint ready for the engine to be re fitted
dewismotorsport
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Registered: 16th Feb 08
Location: Coventry & Poole
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10th Oct 12 at 18:10   View User's Profile U2U Member Reply With Quote

Engine rebuild parts turned up big thanks to Jav for the deal that was done :beer:



I decided against using the drilled bearings as steveboyslim advised me not to and to be honest he is the guru so respected his opinion

That now meant I had to add oil channels to my new block so whipped out the dye grinder and got busy, simple enough job to do, put some grease down the oil hole to minimise the swarf getting down there



Then decided to de seam the block of its casting lines which could potentially act as stress risers



Once all done into the parts cleaner to remove all swarf from oil and water ways



Mains bearings lubed up, in and torqued up to 50NM and 45 degrees



New big crank seal was added and also both oil pump seals



And that's as far as I can go for now as I'm still waiting on a potential piston, needs to hurry up and get back to me as I want to get it all back together
dewismotorsport
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Registered: 16th Feb 08
Location: Coventry & Poole
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11th Oct 12 at 20:23   View User's Profile U2U Member Reply With Quote

Decided to keep cracking on with bits till I sort the piston situation out so decided to start on the gearbox, drain oil out and remove the speedo drive which has stopped working, as I was removing it, it fell into the box and disappeared from view :cry: much swearing later I shook the box and span it upside down until I could see it and then with some long nose pliers and a screw driver I had the little bastard out again :clap: so no gearbox split


All de greased and painted


Also found some of this at work so gonna give the polycarbonate a good clean as they have gone hazy again

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