Morning,

Yesterday I changed the crankshaft oil seal on my 1.4 mpi. The outer and inner seals were greased with Castrol GM before insertion but I found the new seal went in a bit too easily, I was expecting to have to knock it in place with a socket etc. but I was able to push it in with just my fingers. At first it went in too far (there is no back stop) on the second attempt I removed some of the grease and repositioned it nice and squarely at approximately 1mm in from the face.

My question is, is there a great deal of oil pressure at this part of the engine which could cause the seal to pop out? When I look at other YouTube videos some have to be hammered in with a massive amount of force, or is this perfectly normal for this particular engine?

Any advice would be appreciated.

Also, is there supposed to be a washer between the the 24mm bolt and the pulley wheel? as mine doesn't have one.

The seal (old and new) only seems to grip on just the very outer edge of the pulley. Is this normal?

 

Pic1; Old seal

Pic2; Old seal removed and cleaned up

Pic3; New seal, but in too far

Pic4; New seal repossioned

Pic5; Pulley wheel showing grease grip height.

 

Thank you, Joe.

If the breather system is working well there should be no pressure there. It will only ever see splashed oil, not pressurised oil.

Not sure why it was so loose during fitting though. Bought from where, under what part number?

Will look up washer situation shortly, what year is the car?

No separate washer shown for pulley bolt item 5 here https://skoda.7zap.com/en/cz/fabia/fab/2003-225/1/105-105002/

 

Hello Wino,

Purchased from mister-auto-uk via ebay;

REINZ Crankshaft Seal 81-36787-00

 

I thought I'd go for a decent brand but maybe I should have purchased a cheaper one.

The Fabia is on a 2000 (W) plate.

 

Thanks for clarifying the oil pressure, or lack of, and for looking up the bolt info.

 

Shall I just fill up with oil and give her a test run?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

42

Inner Diameter [mm]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FPM (fluoride rubber)

Material

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

81-36787-00

MPN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

58

Outer Diameter [mm]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A SL

Radial Shaft Seal Design

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Right-hand Twist

Swirl Type

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

Part number seems right. Yeah, give it a try.

No way should it be that loose, I had to tap mine in with a block of wood. I used a genuine Skoda seal - part number 047 103 085

 

Example....

 

https://www.ebay.co.uk/itm/VW-Seat-Skoda-Seal-Genuine-VAG-Part-047-103-085/114333875261?hash=item1a9ed47c3d:g:OOoAAOSw1NxfJdeV

 

I tap mine in dry, no grease on the outer part. You want it to grip the timing cover hole.

Edited 31 August, 20205 yr by TMB

I've filled her back up with oil and given her a test run.... no leaks to report just yet.

This is a learning curve for me so I've been relying on information I've read from other members, but I guess what works for some doesn't work for others.

The lesson I've learnt today is to ignore anyone who tells you to grease both the inner and outer seal.

Lee is correct, no grease on the outer part, tap it in dry, job done.

Now I'm not sure whether to revisit this and start again?

If it was me I'd do it again. I know it's a pain in the arse but I wouldn't be able to trust it.

You don't need to do it again, the grease will 'set' with the heat over time, it can't fall out and it's sealing so all's well.