Peugeot 205 GTi big end bearings replacement
-
- Posts: 133
- Joined: January 24th, 2007, 8:14 pm
- Location: Rijeka , Croatia
- Contact:
Peugeot 205 GTi big end bearings replacement
Hi Guy !
Please , i need your help with this :
I'm in the process of "freshening up" my engine , up to the point now to replacing big end bearing shells - how to prepare them (clean protective coating) prior to fitting ? and is there any special precautions during the torquing up the conrod bolts (i'm reusing old conrod bolts , but will mix them up a bit from one to another rod and apply Loctite thread sealant .. hope that's fine ..)
As for torque stages for the big end bearing bolts/nuts , the OE spec. goes like this :
1. 40 Nm
2. Slack off
3. 20 Nm + 70 deg.
.. now , the thing that's worries me is - i do not have a degree wheel for the angle torquing , can this " +70 deg. " be re-calculated in Nm-s instead of degrees ?
Something else i need to watch out during this procedure of bearing shells replacement ?
Thanks !!
Kind regards
Damir
Please , i need your help with this :
I'm in the process of "freshening up" my engine , up to the point now to replacing big end bearing shells - how to prepare them (clean protective coating) prior to fitting ? and is there any special precautions during the torquing up the conrod bolts (i'm reusing old conrod bolts , but will mix them up a bit from one to another rod and apply Loctite thread sealant .. hope that's fine ..)
As for torque stages for the big end bearing bolts/nuts , the OE spec. goes like this :
1. 40 Nm
2. Slack off
3. 20 Nm + 70 deg.
.. now , the thing that's worries me is - i do not have a degree wheel for the angle torquing , can this " +70 deg. " be re-calculated in Nm-s instead of degrees ?
Something else i need to watch out during this procedure of bearing shells replacement ?
Thanks !!
Kind regards
Damir
GC_32
-
- Site Admin
- Posts: 5039
- Joined: June 18th, 2006, 9:31 am
- Location: Bedford, UK
- Contact:
Re: Peugeot 205 GTi big end bearings replacement
NO LOCTITE.
use engine oil as the lubricant on threads and bolt or nut underhead.
If you tell me the exact bolt thread diameter I will give a torque setting tomorrow.
G
use engine oil as the lubricant on threads and bolt or nut underhead.
If you tell me the exact bolt thread diameter I will give a torque setting tomorrow.
G
-
- Posts: 133
- Joined: January 24th, 2007, 8:14 pm
- Location: Rijeka , Croatia
- Contact:
Re: Peugeot 205 GTi big end bearings replacement
Ok. Guy , it's not urgent , will measure bolt thread diameter tomorrow and post the measurements .. as well as a few pictures of the piston/conrod/bolt+nut assembly . (just got back from the garage , and off to sleep - exhausted !!)
Thanks !
Kind regards
Damir
Thanks !
Kind regards
Damir
GC_32
-
- Posts: 133
- Joined: January 24th, 2007, 8:14 pm
- Location: Rijeka , Croatia
- Contact:
Re: Peugeot 205 GTi big end bearings replacement
Hi !
As requested , heres the conrod bolt thread dia. :
Conrod bolt thread : 9.00mm
Some pics :
Piston assembly
Conrod
Conrod bolt thread
Conrod nut (with some slotted markings -> I and II .. dunno what they represent ?!)
Conrod bolt and nut
Conrod bolt thread dia.
Conrod nut dia.
.......
Now , the bearing shells ... they've done about 60.000km's now :
Piston No.1
Piston No.2
Piston No.3
Piston No.4
... one shot of the main bearing shell (flywheel end of the crankshaft) :
.....
And some crankshaft seal dilemma , the OE seal has some sort of ribs and arrow on it , while aftermarket one doesent have a ribs nor the arrow ... so , dunno if it's wise to fit this aftermarket one or refit back the OE seal ? they're same dimension - 90x110-7 .
OE seal (the black/brown on the top is an OE item , the bottom blue seal is aftermarket ..)
Thanks !!
Regards
Damir
As requested , heres the conrod bolt thread dia. :
Conrod bolt thread : 9.00mm
Some pics :
Piston assembly
Conrod
Conrod bolt thread
Conrod nut (with some slotted markings -> I and II .. dunno what they represent ?!)
Conrod bolt and nut
Conrod bolt thread dia.
Conrod nut dia.
.......
Now , the bearing shells ... they've done about 60.000km's now :
Piston No.1
Piston No.2
Piston No.3
Piston No.4
... one shot of the main bearing shell (flywheel end of the crankshaft) :
.....
And some crankshaft seal dilemma , the OE seal has some sort of ribs and arrow on it , while aftermarket one doesent have a ribs nor the arrow ... so , dunno if it's wise to fit this aftermarket one or refit back the OE seal ? they're same dimension - 90x110-7 .
OE seal (the black/brown on the top is an OE item , the bottom blue seal is aftermarket ..)
Thanks !!
Regards
Damir
GC_32
-
- Posts: 133
- Joined: January 24th, 2007, 8:14 pm
- Location: Rijeka , Croatia
- Contact:
Re: Peugeot 205 GTi big end bearings replacement
Found an more precise , OE conrod bolt spec. -> CONNEC ROD BOLT DIAM 9X100
Regards !
Damir
Regards !
Damir
GC_32
-
- Site Admin
- Posts: 5039
- Joined: June 18th, 2006, 9:31 am
- Location: Bedford, UK
- Contact:
Re: Peugeot 205 GTi big end bearings replacement
Tighten the nuts to 51Nm (38lbf ft). If they torque OK they should be alright although ordinarily I would use new. Be sure to use a highly accurate torque wrench like Facom or Snap-On, not soem cheap thing that will overtighten them.
The markings on the nuts are to indicate the grade of material.
As for the seal - if it's the right diameter and same type material (nitrile polymer), design - with sealing edge, spring and dust lip on the outside it is probably OK. I always use only OE seals - the consequences of a leak there are pretty dreadful!
G
The markings on the nuts are to indicate the grade of material.
As for the seal - if it's the right diameter and same type material (nitrile polymer), design - with sealing edge, spring and dust lip on the outside it is probably OK. I always use only OE seals - the consequences of a leak there are pretty dreadful!
G
-
- Posts: 133
- Joined: January 24th, 2007, 8:14 pm
- Location: Rijeka , Croatia
- Contact:
Re: Peugeot 205 GTi big end bearings replacement
Understood , thanks for info Guy !
Just one more thing : which type of solvent do you normally use for cleaning up protective coating on the bearing shells ? ... is brake cleaner or cellulose thinner good for this ?!
Kind regards
Damir
Just one more thing : which type of solvent do you normally use for cleaning up protective coating on the bearing shells ? ... is brake cleaner or cellulose thinner good for this ?!
Kind regards
Damir
GC_32
-
- Site Admin
- Posts: 5039
- Joined: June 18th, 2006, 9:31 am
- Location: Bedford, UK
- Contact:
Re: Peugeot 205 GTi big end bearings replacement
I would just use brake cleaner - presumably you can get hold of this? I use G Force/Wynns/Wurth..
G
G
-
- Posts: 133
- Joined: January 24th, 2007, 8:14 pm
- Location: Rijeka , Croatia
- Contact:
Re: Peugeot 205 GTi big end bearings replacement
Yes ! i do have Wurth brake cleaner ... (already waisted 4 cans for cleaning the block/head etc. !!)
Thanks for help/info !
Kind regards
Damir
... a few ones for the record :
Me and my night shift mechanic !
.. inspection in progress ...
(payment tomorrow , though , he doesn't accept cash nor credit cards -> just fishes !)
Thanks for help/info !
Kind regards
Damir
... a few ones for the record :
Me and my night shift mechanic !
.. inspection in progress ...
(payment tomorrow , though , he doesn't accept cash nor credit cards -> just fishes !)
GC_32
-
- Site Admin
- Posts: 5039
- Joined: June 18th, 2006, 9:31 am
- Location: Bedford, UK
- Contact:
Re: Peugeot 205 GTi big end bearings replacement
Always nice to see the 'human touch' Damir!
G
G
-
- Posts: 133
- Joined: January 24th, 2007, 8:14 pm
- Location: Rijeka , Croatia
- Contact:
Re: Peugeot 205 GTi big end bearings replacement
Greetings Guy !
A quick one please , dunno if i'm doing something wrong here .
Big end bearing shell protective coat cleaning - they have some kind of white , not oily but more kinda "powdery" coating , tried to clean them with Wurth brake cleaner but seems like nothing happens ?! (no coating dissolving ...) , tried with cellulose thinner on a two shells for a test -> something started to happened , white appearance clears but again not completely ...
So , do they have to be bright shiny cleaned or not ?!?
The two ones on the left are cleaned first with brake cleaner , then with cellulose thinner , the rest of the shells on the right are just washed/sprayed with brake cleaner :
"The cleaned ones" - is this enough ?
Thanks !
Kind regards
Damir
(they're the Glyco bearing shells ...)
A quick one please , dunno if i'm doing something wrong here .
Big end bearing shell protective coat cleaning - they have some kind of white , not oily but more kinda "powdery" coating , tried to clean them with Wurth brake cleaner but seems like nothing happens ?! (no coating dissolving ...) , tried with cellulose thinner on a two shells for a test -> something started to happened , white appearance clears but again not completely ...
So , do they have to be bright shiny cleaned or not ?!?
The two ones on the left are cleaned first with brake cleaner , then with cellulose thinner , the rest of the shells on the right are just washed/sprayed with brake cleaner :
"The cleaned ones" - is this enough ?
Thanks !
Kind regards
Damir
(they're the Glyco bearing shells ...)
GC_32
-
- Site Admin
- Posts: 5039
- Joined: June 18th, 2006, 9:31 am
- Location: Bedford, UK
- Contact:
Re: Peugeot 205 GTi big end bearings replacement
sorry to say but it sounds like oxidation to me...
I see it sometimes on the new generation Fiat bearings if moisture has got into the packet.
G
I see it sometimes on the new generation Fiat bearings if moisture has got into the packet.
G
-
- Posts: 133
- Joined: January 24th, 2007, 8:14 pm
- Location: Rijeka , Croatia
- Contact:
Re: Peugeot 205 GTi big end bearings replacement
... so , what should i do now ?! i can't take them back for money refund .
The packet was vacuum sealed up all around (though there might been some pin hole on the PVC bag ...) , the ones which i've been using before where "AE" bearings (in the blue package .. this ones are Glyco , in the red package .. ) and they've had white/milky oily coating which was easy to remove ...
Damir
The packet was vacuum sealed up all around (though there might been some pin hole on the PVC bag ...) , the ones which i've been using before where "AE" bearings (in the blue package .. this ones are Glyco , in the red package .. ) and they've had white/milky oily coating which was easy to remove ...
Damir
GC_32
-
- Site Admin
- Posts: 5039
- Joined: June 18th, 2006, 9:31 am
- Location: Bedford, UK
- Contact:
Re: Peugeot 205 GTi big end bearings replacement
sorry but it is entirely up to you, Damir...
No way would I personally fit them.
G
No way would I personally fit them.
G
-
- Posts: 133
- Joined: January 24th, 2007, 8:14 pm
- Location: Rijeka , Croatia
- Contact:
Re: Peugeot 205 GTi big end bearings replacement
Ok. , will try to replace/return them ... or get a money refund to buy a new ones .
Thanks for info !
Kind regards
Damir
Thanks for info !
Kind regards
Damir
GC_32
Who is online
Users browsing this forum: No registered users and 7 guests