Big end bearings, please help? - Alfa Romeo Forum
You are currently unregistered, register for more features.    
 
Thread Tools
(Post Link) post #1 of 9 Old 22-09-09 Thread Starter
Status: Yes I'm back! hehe.
AO Silver Member
 
TheMystic's Avatar
 
Join Date: Feb 2009
Location: South Africa
County: Gauteng
Posts: 1,436
Help Big end bearings, please help?

Hi all.

I've got one very slightly damaged big end and 3 fine ones. The trouble is that I don't have any of the car's history. So I can't be sure that the crank hasn't been modified. I've measured it with a micrometer and so has a engineering mate of mine. We clearly didn't get it right. My dad and I measured it twice and we also didn't get it right. None of the numbers match up. My Dad got a contact of his to come over and measure that damaged journal, but they neglected to measure the others of reference purposes. Those numbers also donít agree with any of the others.

Can I buy 3 standard and one oversized bearing?

We've got a AO breakfast run coming up and I really wanted to go with.

oh, it's a 2.0 ts cf3 from a 147. The big end is caput from a cambelt failure.
TheMystic is offline  
Sponsored Links
Advertisement
 
Status: Rebuilding series 3 landy, nearly there!
AO Member
 
UKSPF's Avatar
 
Join Date: Nov 2008
Location: United Kingdom
County: Torfaen
Posts: 299

Member car:

145 Cloverleaf

On the old shell bearings STD should be stamped on them if they are standard size, I would have thought they would have ground all of the crank and not part of it.
UKSPF is offline  
(Post Link) post #3 of 9 Old 23-09-09 Thread Starter
Status: Yes I'm back! hehe.
AO Silver Member
 
TheMystic's Avatar
 
Join Date: Feb 2009
Location: South Africa
County: Gauteng
Posts: 1,436
Only on of the pistons took a wack in that cam belt failure and the engine was at idle. So the number 1 big end journal is slightly damaged but is within the ovalaty tolarance. I'm hoping to avoid taking the head off and or taking the engine out.
TheMystic is offline  
Status: AROC 916 Registrar
AO Gold Member
 
Mitch916's Avatar
 
Join Date: Nov 2002
Location: United Kingdom
County: Kent
Posts: 8,916
If the cam belt has failed you will have to remove the head, there will be valve damage. Being at idle makes no difference, the engine is still doing approx 1000 rpm.

I got my big end size by looking up the part number stamped on the shell on eper.

Coming to the end of mine, have a look through here, it may be of interest to you.

https://www.alfaowner.com/Forum/motor...w-project.html
Mitch916 is offline  
(Post Link) post #5 of 9 Old 25-09-09 Thread Starter
Status: Yes I'm back! hehe.
AO Silver Member
 
TheMystic's Avatar
 
Join Date: Feb 2009
Location: South Africa
County: Gauteng
Posts: 1,436
Thanks Mitch,

The cam belt failure was repaired at Alfissimo in Boksburg, they however refused to change the big ends at the time. I was told that it's not part of the official Alfa repair guide or some such and thus if I wanted it done would have to pay full price for the total repair of the cam belt failure. I really should have pulled my car out of there the moment I got the quote. Those monkeys have no clue.
TheMystic is offline  
Status: -
Unregistered
 
Join Date: Feb 2008
Location: United Kingdom
County: Wiltshire
Posts: 9,721
I would suspect that if the oil is like that you need to replace the crank, cams and some tappets too, I've done 8 engines with this damage this year and all of them were post cambelt repair at a garage, it does say in the manual to replace the big end shells but dealers dont because they rely on the garenteed future work.
Smaky is offline  
(Post Link) post #7 of 9 Old 02-10-09 Thread Starter
Status: Yes I'm back! hehe.
AO Silver Member
 
TheMystic's Avatar
 
Join Date: Feb 2009
Location: South Africa
County: Gauteng
Posts: 1,436
Ok well that just ripps it! I'm going to the motor industry ombudsman. Finished.
TheMystic is offline  
Status: -
Newbie
 
Join Date: Nov 2013
County: -
Posts: 8
Mystic I know this is an old thread but i stumbled upon this when trying to get an solution to my problem. I have got the exact same problem. I live in Nelspruit. Did you aproach the ombudsman and if so what was the outcome?
Alfaritus is offline  
Status: playing kill by numbers
AO Gold Member
 
Join Date: Feb 2005
Location: Belgium
County: Down in the Park
Posts: 8,786
Quote:
Originally Posted by TheMystic View Post
Hi all.

I've got one very slightly damaged big end and 3 fine ones. The trouble is that I don't have any of the car's history. So I can't be sure that the crank hasn't been modified. I've measured it with a micrometer and so has a engineering mate of mine. We clearly didn't get it right. My dad and I measured it twice and we also didn't get it right. None of the numbers match up. My Dad got a contact of his to come over and measure that damaged journal, but they neglected to measure the others of reference purposes. Those numbers also donít agree with any of the others.

Can I buy 3 standard and one oversized bearing?

We've got a AO breakfast run coming up and I really wanted to go with.

oh, it's a 2.0 ts cf3 from a 147. The big end is caput from a cambelt failure.

Plastigauge is your friend
Cuore_Sportivo_155 is offline  
Reply

Go Back   Alfa Romeo Forum > Supported Alfa Romeo Models > Technical & Vehicle Assistance > Engines (TS, JTS, JTD & V6)

Tags
bearings , big , end

« stepat | Jtdm »
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Big End Bearings Fluffyduff Alfa 33, Sud & Sprint 10 23-10-08 09:36
146 big end bearings 146trackproject Engines (TS, JTS, JTD & V6) 11 22-08-08 21:06
New Big end bearings 156 20ts Phil J Alfa 147, 156 & GT 3 30-08-07 18:04
156 2.4 jtd Big End Failure dmatthewson Alfa 147, 156 & GT 3 10-07-07 20:06
slight big end noise niallmoran Alfa 147, 156 & GT 36 09-12-06 09:37

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome