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Corsa Sport » Message Board » General Chat » Projects and Builds » jamesvalvers tb'd xe - LOVE/HATE - 15.05.2008 - going well


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Author jamesvalvers tb'd xe - LOVE/HATE - 15.05.2008 - going well
Chris F
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Registered: 26th Dec 05
Location: Newmarket Drives: Escort Van 1.8
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4th Feb 08 at 20:00   View Garage View User's Profile U2U Member Reply With Quote
Rebuild
jamesvalver
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Registered: 21st Feb 03
Location: Bury St Edmunds, Suffolk
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4th Feb 08 at 20:37   View User's Profile U2U Member Reply With Quote
yes dude, another rebuild with different pistons this time tho
Olsrey
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Location: Bradford   Drives: LET Vectra B
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4th Feb 08 at 22:19   View User's Profile U2U Member Reply With Quote
Again James .
Robin
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4th Feb 08 at 22:21   View Garage View User's Profile U2U Member Reply With Quote
I honestly cannot believe you're having so much shit luck with this car James
flybikeslee
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Registered: 2nd Jan 07
Location: Liverpool
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4th Feb 08 at 22:36   View User's Profile U2U Member Reply With Quote
this will have had more rebuilds than mines had oil changes... higher compression?
jamesvalver
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4th Feb 08 at 22:50   View User's Profile U2U Member Reply With Quote
the joys of running high power with a std bottom end componants and a 12mile round trip to work everyday on patern parts. when the engine doesnt even get to 90deg'c

[Edited on 04-02-2008 by jamesvalver]
Graham88
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Registered: 16th Apr 07
Location: South East Kent Drives: E46 M3
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4th Feb 08 at 23:09   View User's Profile U2U Member Reply With Quote
Wicked car
jamesvalver
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6th Feb 08 at 23:29   View User's Profile U2U Member Reply With Quote
things are inevitabley going to change (team america moment there )

went to see my mate who reconditions engines for a living last nite and hes advised me to stop driving my can and get the crank out and measured as apparently its not uncommon for xe's o have one end on 0.25. not quite sure what that means but im sure when i measure them it'll all become clear. ive just gotta sweet-talk my boss now to let me keep the car at work so i can work on it at the weekends

[Edited on 06-02-2008 by jamesvalver]
jamesvalver
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Location: Bury St Edmunds, Suffolk
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8th Feb 08 at 21:10   View User's Profile U2U Member Reply With Quote
the hunt has started for a new engine. my car is now currently off the road atm so im back in the 1.2i 8v and i love it!
Jon_C
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8th Feb 08 at 21:11   View Garage View User's Profile U2U Member Reply With Quote
What happened to the old engine
jamesvalver
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8th Feb 08 at 21:33   View User's Profile U2U Member Reply With Quote
bottom end rattle from cold
Warren G
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8th Feb 08 at 21:40   View User's Profile U2U Member Reply With Quote
sod rebuilding it again! find other bottom end

when mine gives up or starts using oil, will just fit another bottom end! lol
jamesvalver
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8th Feb 08 at 22:04   View User's Profile U2U Member Reply With Quote
im searching for a new bottom end but to no luck atm. im thinking about finding another engine to drop in it for a while
Dave A
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8th Feb 08 at 22:09   View User's Profile U2U Member Reply With Quote
wats the rattle? piston slap or crank bearings?

its more likely to be piston slap which can easily be resolved with an overbore and some forged pistons.

SportBoy
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8th Feb 08 at 22:12   View User's Profile U2U Member Reply With Quote
aye bearings only nomrally rattle when warm .. dont get premature mr james!
jamesvalver
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8th Feb 08 at 22:27   View User's Profile U2U Member Reply With Quote
its from the bottom end and bearing noise, i personally think its to do with oil presure but im waitin on my gauge to arrive. when its warm it doesnt rattle, and when its cold as soon as it goes over 3000rpm it stops rattling also, yet when i plugged in the oil presure gauge at work it was running a 2.1bar.

the bores where fine before rebuild. not ovalised and where rehoned then fitted with new rings
Dave A
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9th Feb 08 at 10:31   View User's Profile U2U Member Reply With Quote
sounds like the exact symptoms of piston slap.
sand-eel
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9th Feb 08 at 12:29   View User's Profile U2U Member Reply With Quote
is that when the piston hits off the side of the bore?
Dave A
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9th Feb 08 at 16:22   View User's Profile U2U Member Reply With Quote


its from the bottom end:

rattling from the bottom end is often piston slap caused by too much piston skirt to bore clearance, makes the piston rattle around in the bore rater than running true.

when its warm it doesnt rattle:

when the engine warms up the pistons and piston rings expand and the gap is taken up slightly so that the piston no longer 'slaps' the bores during its stroke

and when its cold as soon as it goes over 3000rpm it stops rattling:

increased piston speed gives the piston less time to rock in the bores as there is more power pushing the piston through its stroke so it has less time to rattle in the bores.


the bores where fine before rebuild. not ovalised and where rehoned then fitted with new rings:

if the block had been re-honed before then another rehone could cause the piston to be too small to fill the cylinder, fitting oversized rings without oversized pistons will often cause piston slap.

[Edited on 09-02-2008 by Dave A]
jamesvalver
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9th Feb 08 at 19:25   View User's Profile U2U Member Reply With Quote
cheers dave, the bores had only been honed once
Chris F
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9th Feb 08 at 19:29   View Garage View User's Profile U2U Member Reply With Quote
i hope mine dont brake when its done

Btw fuel pump sorted now two!
Warren G
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9th Feb 08 at 19:36   View User's Profile U2U Member Reply With Quote
calling for 2.1 rebore and high compression pistons
jamesvalver
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9th Feb 08 at 21:04   View User's Profile U2U Member Reply With Quote
will get the engine stripped again and inspect it, dunno when im gona get the change atm tho as ive got another engine being built atm at work for my mates nova. might have to ask my rents very nicely to let me use the convervatory
Robin
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9th Feb 08 at 21:05   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by CorsaCF
i hope mine dont brake when its done


I think you'd be better off if it did brake Chris
jamesvalver
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9th Feb 08 at 21:11   View User's Profile U2U Member Reply With Quote
chris - u'll crash before it brakes

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