Hi all,
I pulled one of my big end bearing caps off to inspect it. I'm not sure if this is bad enough to warrant taking all the bearings out and replacing. Can someone give me advice on whether to bother or not?
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Advice on bearing condition
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Advice on bearing condition
by meerkatmag » Mon Sep 29, 2025 5:26 pm
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1988 transit MK3 2.5 tdi with intercooler
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Re: Advice on bearing condition
by Chug » Mon Sep 29, 2025 9:29 pm
Don't look to bad on my crappy monitor if those spots aren't holes, they look like water marks, but if you've got the sump off to get at that one why not check the rest anyway.
1991(J) twin wheel tipper 2.5tdi
1994(L) twin wheel tipper 2.5di
1994(L) twin wheel tipper 2.5di
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Re: Advice on bearing condition
by meerkatmag » Mon Sep 29, 2025 10:36 pm
Those are pits not water marks. Its pretty smooth but you can feel those holes. Would you change them in that case? I have glyco bearings ready to go.
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1988 transit MK3 2.5 tdi with intercooler
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meerkatmag - Transit Aficionado
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Re: Advice on bearing condition
by MinorMatt » Tue Sep 30, 2025 12:10 pm
If they are below the surface thats fine, its just somewhere to hold extra oil.
That bearing looks absolutely fine to me - but if you have new ones that are good to go why not fit them?
That bearing looks absolutely fine to me - but if you have new ones that are good to go why not fit them?
Lucas Laser 2000/IDS
95 Pre Production DRW TD Highcube
95 Hallmark
96 150 100PS LWB Hi-Top
96 Autosleeper Duetto
06 Mk7 (scrap)
09 140PS T330S 2.2
Gaffa tape is like the force, it has a light side, a dark side, and it holds the universe together
95 Pre Production DRW TD Highcube
95 Hallmark
96 150 100PS LWB Hi-Top
96 Autosleeper Duetto
06 Mk7 (scrap)
09 140PS T330S 2.2
Gaffa tape is like the force, it has a light side, a dark side, and it holds the universe together
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MinorMatt - Transit Extremist
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Re: Advice on bearing condition
by meerkatmag » Wed Oct 01, 2025 10:31 am
I took piston out now, the new rings ive bought (goetze) had a compression rings that's too wide, it doesn't fit in the piston groove? Am I missing something? It has right part number for mk3 transit. Are there two sizes of rings?
1988 transit MK3 2.5 tdi with intercooler
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meerkatmag - Transit Aficionado
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- Joined: Wed Nov 02, 2016 8:20 pm
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Re: Advice on bearing condition
by MinorMatt » Wed Oct 01, 2025 11:08 am
meerkatmag wrote:I took piston out now, the new rings ive bought (goetze) had a compression rings that's too wide, it doesn't fit in the piston groove? Am I missing something? It has right part number for mk3 transit. Are there two sizes of rings?
No idea... sorry
Lucas Laser 2000/IDS
95 Pre Production DRW TD Highcube
95 Hallmark
96 150 100PS LWB Hi-Top
96 Autosleeper Duetto
06 Mk7 (scrap)
09 140PS T330S 2.2
Gaffa tape is like the force, it has a light side, a dark side, and it holds the universe together
95 Pre Production DRW TD Highcube
95 Hallmark
96 150 100PS LWB Hi-Top
96 Autosleeper Duetto
06 Mk7 (scrap)
09 140PS T330S 2.2
Gaffa tape is like the force, it has a light side, a dark side, and it holds the universe together
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MinorMatt - Transit Extremist
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Re: Advice on bearing condition
by meerkatmag » Wed Oct 01, 2025 12:55 pm
My top compression ring groove is 2mm, but the supplied ring is 2.5mmm. The 2nd ring fits in the 1st compression ring groove. Presumably I can't mix and match them? Maybe I have pistons from a mk2 or something?
1988 transit MK3 2.5 tdi with intercooler
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meerkatmag - Transit Aficionado
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- Joined: Wed Nov 02, 2016 8:20 pm
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Re: Advice on bearing condition
by Mislaid » Wed Oct 01, 2025 5:46 pm
Is there a visible part number stamped in to piston so you can cross reference?
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Re: Advice on bearing condition
by meerkatmag » Sun Oct 05, 2025 6:02 pm
Mislaid wrote:Is there a visible part number stamped in to piston so you can cross reference?
The pistons have this number on them: 864f-6110-a2a
Google doesn't have much on it. Ive put it back together now with the original top ring, it seemed in good condition.
1988 transit MK3 2.5 tdi with intercooler
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meerkatmag - Transit Aficionado
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- Joined: Wed Nov 02, 2016 8:20 pm
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Re: Advice on bearing condition
by Mislaid » Sun Oct 19, 2025 2:55 pm
This may be of use for reference if not seen before
Item Specifications
MPN:08-123700-00
Brand:GOETZE ENGINE
Cylinder Bore [mm]:93.67
Component Number:2.0mm 005IF P I, 2.5mm 007IF MOL, 4.0mm 231 CR P
Item Specifications
MPN:08-123700-00
Brand:GOETZE ENGINE
Cylinder Bore [mm]:93.67
Component Number:2.0mm 005IF P I, 2.5mm 007IF MOL, 4.0mm 231 CR P
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