300tdi timing belt change foul up...

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discomania

Well-Known Member
Posts
6,947
As per my other thread of last night I have been changing the timing belt... hahaha.

I am really only in there as my crank oil seal was leaking. So got it all stripped last night after making a homemade crank timing gear puller. Cleaned the timing chest all up, great I thought, rebuild it tomorrow and I am all done for another 6 years.

Fitted the new O ring to the crank shaft and proceeded to oil the new seal ready to fit, offer it up to the recess and the seal falls in... hmmmm. Look at box, camshaft oil seal! Bastardo.

Decided to fit the cam seal since I had it, now I think about it I wish I had not bothered.

I will order the seal tomorrow. Waste of an afternoon.
 
Ooopppps.

Did you order the wrong part or get sent the wrong part?
Other than that..........
Not much more to say to that.

Cheers
 
End result will still be the same (stopping the leak hopefully), which means that the belt wont rot, which means the belt doesn't snap, which if it did would mean you would have to do the seals and belt anyway but add changing a set of pushrods at the same time!
 
End result will still be the same (stopping the leak hopefully), which means that the belt wont rot, which means the belt doesn't snap, which if it did would mean you would have to do the seals and belt anyway but add changing a set of pushrods at the same time!

Yup, indeed, I do want to avoid this.

I had a belt go on a 2.5NA about 10 years ago, I was doing 70mph (yes in an NA) on the motorway when it went out like a light, coasted onto the hard shoulder and tried to start it, from the woosh woosh blump blump I knew what had happened. Luckily for me I was on the way to my friends who was a motor engineer, so I was heading towards tools and knowledge all the way! 24 hrs later, a set of push rods and a new belt I drove it home.

At least now some other little jobs have been done, the cam has a new seal which it was not going to get, and I will have a new (2 in fact) Corteco seal tomorrow or Wednesday. I am also tempted to redo the cam seal, I was annoyed when I was doing it and it started to push home a little squint (because I had just hit my hand with the mallet and was even more annoyed), it never distorted and it pushed home true and square in the end but it got me thinking last night...
 
It gets worse!

The new parts arrived on Wednesday, I went to fit the new seal on Thursday night and ran into a bit of an issue.

First I lube up the seal, clean up the rebate in the timing chest and go to push it in that first little nudge, oddly enough it wouldn't do this, it looked like it was going to fit but just wouldn't press fit that little amount you would hope to get it by hand.

So I get the new timing gear, lube up the lip and slide the seal over it, then slide the whole lot onto the crank shaft, press it home then I slid the old timing gear onto the crank and got the crank pulley bolt and used that to push the seal home, the bolt washer starts to make contact with the seal and it all starts to nudge forward, then still slowly ratcheting on the bolt it starts to get jolly difficult, so I get my light and have a look, seal has gone NOWHERE, the rubber of the seal all the way round has uniformly started to expand beyond the rebate in the chest!

So I take it all off and right enough the seal has started to deform, it's shot.

I got annoyed and just walked away from it all but I have now done some investigation work this morning and I can see the issue - see the image - 10 points if you can see the problem!
20170526_094703_resized.jpg
 
OK,

What is the problem with the picture? I cannot see it. I do remember mine was very tight going in, But I made a thin steel plate to push onto it in its entirety.

Cheers
 
OK,

What is the problem with the picture? I cannot see it. I do remember mine was very tight going in, But I made a thin steel plate to push onto it in its entirety.

Cheers

Look carefully at the part no. on the seal and the part no. on the bag!
 
Ooops, guess you are on the phone again.....Not having a lot of luck are you.

Cheers

Nope I am not!

This is the 3rd wrong part I have had in a box or bag in the last 8 days. First it was a rack end for a friends Volvo, then the Cam seal instead of Crank seal and now this. The Err4576 is the outer seal for the cover, so if I get to keep the good one I will end up with a outer seal too.

Had the correct seal just turned up in the first place this post would never had existed and I would be happily driving about with a new timing belt!
 
It always helps if the contents match the label.

That's bloody annoying o_O
Very, I needed to go to the builders yard tomorrow to collect concrete blocks, now I am going to be trying to rebuild the LR and get it running quickly enough to catch the yard - which is when mistakes happen.

I have ordered a seal from my local stealership so I can get it tomorrow AM.
 
OK - Bought the part from LR - LR Direct refunding for whole order so at least I get the money back to spend on the seal at LR!
 
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What a colossal pain in the @rse. Hope you get it sorted in the morning.

Yeah, it was indeed!!

I got her running again today thankfully but there were a couple more setbacks!

The monkeys who fit the belt previously had ruined the threads on the M10 stud, clearly using the two nut trick but a bit overzealously on the tightening of them together. So when I was threading the new nut on it didn't feel right. That then meant I was stuck with a stud that needed extracted but a thread damaged enough that the two nut plan would not tighten enough to lock it up. I had to cover everything up to protect it from weld spatter and weld a nut on! I know there are extractors but this did rather well.

LR then had to sell me a bag of 5 studs at 2.90 a stud!

CharlesY from this forum and another friend came by this morning to help so between the three of us we did a damn good job of sorting it all out and got it going.

First turn of the key and she was away.

Engine much smoother, it was running well to be honest but I think I mentioned above that the cam was 1 tooth advanced.

Valve train sounds oddly smooth and power and smoke all feels and looks not bad. I will let it all settle for a bit then tweak the pump for that perfect tune.

Have a good bank holiday weekend folks.
 
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