|
|
![]() |
|
LinkBack | Thread Tools | Display Modes |
![]() |
#46 (permalink) |
Fresh Scooby
Join Date: Nov 2010
Location: Nairobi
Posts: 38
|
Re: Blown Piston after crankshaft and piston replacement
First off guys thank you so much for the help you have give me so far. Thought I should post some pics to give a clearer picture of what is happening. Something important I think I should mention is that all the problems with the pistons and the rods are happening only in cylinder number 4. The first time I had the rod knock it was piston 4. The new piston was put in cylinder 2 and the one that was in 2 was put in 4. The first time it had the rod knock, the piston 4 (which I threw away) looked just as the picture above (this piston is actually for the second rod knock, the third time the car broke down). Hope I'm putting this through clearly. ![]() The picture above is after the piston blew. This happened after I had driven the car for about a week and I was doing 5000rpm at about 140kph. Today the mechanic informed me that this also happened on cylinder 4. But this was not the new piston as he had put the new one in 2. He then put in a new piston in cylinder 1 and put the one that was in 1 into cylinder 4. The car started producing the knocking sound shortly after during the road test. The mech opened it up and found that the main bearing was gone (badly scratched). There was no damage on the con rod or the con bearings. Below is the piston. ![]() This time also the bore was scratched. The garage gave me some reprieve though. They said that they will put in new bearings, piston rings, piston, oil pump. They also said that they will put half block for the side with piston 4 that is damaged. By the way, how safe is it to replace half the block? All this they will do for free. do you guys think it'll work this time? Sorry for the multiple posts, it's the first time I'm doing this. Last edited by Fundikali; 25 Nov 2010 at 05:34 PM. |
Offline |
![]() |
![]() |
#47 (permalink) |
Obsessed Scooby
Join Date: Jul 2008
Location: Cork, Ireland
Posts: 7,475
|
Re: Blown Piston after crankshaft and piston replacement
Replacing half the block why not the whole block then just to lessen costs Id reckon Id be wanting a full block just dosnt make any sense when the new half block goes and gets joined up to the older half of the block they could be out by a lot maybe not but they going to be different stress's already on the old half block now I know the piston 2 and 4 side block are the only side thats been scratched BUT its like the norm you dont just replace one side of your brake pads you do both what are the chances off when they put it all back together and it go pop again just dont understand if your going to doing it do it right, Id want the full block replaced, main and big end bearings, rods, pistons, and so on never heard of just replacing half the block just sounds ODD
__________________
SEE NO EVO HEAR NO EVO!
|
Offline |
![]() |
![]() |
#48 (permalink) | |
Fresh Scooby
Join Date: Nov 2010
Location: Nairobi
Posts: 38
|
Re: Blown Piston after crankshaft and piston replacement
Quote:
|
|
Offline |
![]() |
![]() |
#49 (permalink) | |
Obsessed Scooby
Join Date: Jul 2008
Location: Cork, Ireland
Posts: 7,475
|
Re: Blown Piston after crankshaft and piston replacement
Quote:
![]()
__________________
SEE NO EVO HEAR NO EVO!
|
|
Offline |
![]() |
![]() |
#50 (permalink) | |
Fresh Scooby
Join Date: Nov 2010
Location: Nairobi
Posts: 38
|
Re: Blown Piston after crankshaft and piston replacement
Quote:
![]() Are these the little holes/ oil ways you are talking about? |
|
Offline |
![]() |
![]() |
#51 (permalink) |
Cool Scooby
Join Date: Oct 2008
Location: Winchester
Posts: 202
|
Re: Blown Piston after crankshaft and piston replacement
I've been following this story of yours and pray i never have to go through any of that. I really hope it is sorted this time and as for knowledge here, you guys are awesome. Good luck in the future.
|
Offline |
![]() |
![]() |
#53 (permalink) |
Obsessed Scooby
Join Date: Jul 2008
Location: Cork, Ireland
Posts: 7,475
|
Re: Blown Piston after crankshaft and piston replacement
Also check the oil cooler aswell and give it a good clean before going back on engine as it might have metal pieces from the damaged pistons on it sure all these parts be cleaned and checked before reassembling them and replace oil pump as said before
__________________
SEE NO EVO HEAR NO EVO!
|
Offline |
![]() |
![]() |
#57 (permalink) | |
Cool Scooby
|
Re: Blown Piston after crankshaft and piston replacement
Quote:
![]() |
|
Offline |
![]() |
![]() |
#58 (permalink) |
Fresh Scooby
Join Date: Mar 2010
Location: chesterfield
Posts: 28
|
Re: Blown Piston after crankshaft and piston replacement
hope you get everything sorted fella,ive got 52 plate bug eye mate and had the headgasket go,got it back and 500 mile later I had a knocking noise unfortunatly it was the crank
![]() |
Offline |
![]() |
![]() |
#59 (permalink) |
Fresh Scooby
Join Date: Nov 2010
Location: Nairobi
Posts: 38
|
Re: Blown Piston after crankshaft and piston replacement
Thanks Johnathan. The garage's yet to get the block so I'm still waiting. Carwisperer, I'll check the holes in the crank as advised. thanks.
|
Offline |
![]() |
![]() |
Bookmarks |
Tags |
blown, crankshaft, piston, rod knock |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
Thread Tools | |
Display Modes | |
|
|