View Single Post
  #1  
Old 8th August 2012, 04:13 PM
RanjS8 RanjS8 is offline
Senior Member
 
Join Date: May 2010
Location: Midlands
Posts: 594
Default Bad Piston removed

Finally got the bad piston out today...what a mission of discovery this has been so far....Once I have a new piston I should be on my way to putting things back together....but I m sure there are gona be some tricky points along the way!!!!

With the cylinder head off, to get to the piston one has to remove the lower sump and upper sump. You may have to remove the oil pump as well, but since the offending piston was towards the back I could get to the bolts connecting it to the crankshaft without removing this.

The piston is connected to the crankshaft by two bolts and there is a metal sleeve between the piston and the cranshaft.

Once the two bolts were off, the piston is extracted from the top by pushing it up from the bottom....I used a long piece of wood as I didnt want to damage the bore lining.

Cylinder 7 piston was damaged and I removed cylinder 8 piston as the lining of the bore has slight scoring so I thought that I may as well solve this issue while I m at this point.

This is the first time in my life I have seen an actual piston so quite cool finally being able to put things into perspective.
Attached Thumbnails
Click image for larger version

Name:	IMG_0936.jpg
Views:	397
Size:	430.7 KB
ID:	4190   Click image for larger version

Name:	IMG_0934.jpg
Views:	386
Size:	325.8 KB
ID:	4191   Click image for larger version

Name:	IMG_0935.jpg
Views:	369
Size:	409.2 KB
ID:	4192   Click image for larger version

Name:	IMG_0933.jpg
Views:	395
Size:	363.3 KB
ID:	4193  
__________________
01 Audi a8 fl sport - Grey, Bose, Glass Sunroof, S8 grill/mirror covers/wheels, Aftermarket Exhaust, very quick and lots of fun!!!!!....well I gave it one final push on the pedal to hear that v8 growl and then it was off to a new home.....
99 Audi a8 fl - Silver, Black alcantara seat/ S8 grill/side mirror, MFSW, Solar Sunroof, 17" Monoblocks (for that extra cushion of air), Rnsc, Bose.....great motorway cruiser....now gone to a new home
02 Final Edition S8 - Avus Silver, Extended Leather Pack III, Front & Rear Heated Seats, Servo, Blinds, Rear Seat Entairtainment with Playstation, Bose, Bi Xenons.....now gone to a new home
97 PF A8 4.2 quattro sport - Cashmere Grey, Servo, RNS E, Blinds, Bose, 20 Final Edition Alloys, LPG....sold sadly and will be missed
03 S4 V8 Saloon - Misano red, Manual, Milltek, Bose, Xenons, RNS E - Sold as of Feb 2012

Reply With Quote