Oil pump sealer failure....again..... - Alfa Romeo Forum
You are currently unregistered, register for more features.    
 
Thread Tools
(Post Link) post #1 of 6 Old 23-05-10 Thread Starter
Status: Rh - C8H18
AO Member
 
Speedmaster's Avatar
 
Join Date: Nov 2009
Location: Bulgaria
County: Stara Zagora
Posts: 377
Garage
Oil pump sealer failure....again.....

Have very unpleasant problem with this sealer, and i really need expert opinion.
Engine is 2.0TS, lightweight FW, ceramic clutch, banancers belt removed(shafts was available, removal underway). Alfisti trackday here in BG, and before my last 2 runs i saw oil leakage from oil pump sealer. Engine was heavy loaded this day, but oil was in perfect temp range, water as well. And that's happen for second time, sealer was changed then, oil pump too. Same happen when engine in race condition afterwards.
Is it possible compression past through piston rings, and create high pressure in oil sump....or something like that????
However i drop the engine for entire revision, but i really must know what cause this.
Thank you.

Rear Wheel Drive Mid - Engined Alfa 156 3.0 V6 '99 - trackday car
Alfa 156 2.0 TS '00 - daily car

Fiat Coupe 20VTurbo, GT2860RS,
water-meth injection 120cc, custom manifold, 3" Downpipe, FMIC - entertainment car

Last edited by Speedmaster; 24-05-10 at 07:34.
Speedmaster is offline  
Sponsored Links
Advertisement
 
Status: -
AO Member
 
Join Date: Jan 2008
Location: Oxford
Posts: 336

Member car:

156 selespeed

Have you checked the crankshaft for score marks where the oil seal fits? Are you using an original seal?
You won't get too much pressure in the crankcase unless maybe the PCV is clogged? See this link;
https://www.alfaowner.com/Forum/alfa-...-location.html
stoyce is offline  
(Post Link) post #3 of 6 Old 23-05-10 Thread Starter
Status: Rh - C8H18
AO Member
 
Speedmaster's Avatar
 
Join Date: Nov 2009
Location: Bulgaria
County: Stara Zagora
Posts: 377
Garage
Quote:
Originally Posted by stoyce View Post
Have you checked the crankshaft for score marks where the oil seal fits? Are you using an original seal?
You won't get too much pressure in the crankcase unless maybe the PCV is clogged? See this link;
https://www.alfaowner.com/Forum/alfa-...-location.html
Yep, original seal used - PCV is tapped, oil breather filter is used on both black plastic valve cover hoses.....
Speedmaster is offline  
Status: -
AO Member
 
Join Date: Jan 2008
Location: Oxford
Posts: 336

Member car:

156 selespeed

Well, if the piston rings are worn, then it's possible that compression is leaking past them. Has it had new rings?
stoyce is offline  
(Post Link) post #5 of 6 Old 25-05-10 Thread Starter
Status: Rh - C8H18
AO Member
 
Speedmaster's Avatar
 
Join Date: Nov 2009
Location: Bulgaria
County: Stara Zagora
Posts: 377
Garage
Yes, new rings...
Anyway, the problem was oil pump - internal housing crack. It was striped today, and it's obvious.
Speedmaster is offline  
Status: -
AO Member
 
Join Date: Jan 2008
Location: Oxford
Posts: 336

Member car:

156 selespeed

Quote:
Originally Posted by Speedmaster View Post
Yes, new rings...
Anyway, the problem was oil pump - internal housing crack. It was striped today, and it's obvious.
Glad you found it!
stoyce is offline  
Reply

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

Tags
failureagain , oil , pump , sealer

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
16 important OIL questions and answers oilman Alfa 147, 156 & GT 339 03-06-18 10:39
Oil Pump Failure in 2.0 Engines ?? jaf156 Engines (TS, JTS, JTD & V6) 1 26-01-08 14:07
Gear Oil Questions and Answers oilman Alfa 147, 156 & GT 0 19-01-08 12:07
Buying Oil, Some Basic Advice From Opie Oils oilman Alfa 155 0 11-05-07 13:39
Oil labelling explained oilman Alfa 147, 156 & GT 10 29-11-06 11:57

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