2.1 dj hydr. tap. prob's

Post by **SyncroRich** » 08 Apr 2008, 19:59

Just been cleaning and refilling my hydraulic tappets and on one I noticed this..
[IMG:800:600]http://i85.photobucket.com/albums/k68/r ... oto565.jpg[/img]

On the furthest tappet away at around the 9 o'clock position you can see the clip is missing a piece and both tappets have a notch out of them which doesn't look right to me.

No other damage is apparent including the block where they sit.

What could have cased this?

Hamfistedness by previous owner/ mechanic?

Post by **SyncroRich** » 09 Apr 2008, 15:11

Also where can I get the clips themselves?

Post by **toomanytoys** » 09 Apr 2008, 16:11

Does it look like a "chip"?
I dont remember seeing any "cutouts" on them before...

clips... someone on here, but you have to wonder where the old one went...

could be that they are the "replacement" ones, heard a lot are poor quality.. whats the cam face look like?

Mmm... I like the eas of the hydro's but they do bother me coz they are bloomin heavy and have to have strong springs etc etc...

Post by **T'Onion** » 09 Apr 2008, 16:41

Replace the whole tappet ... I think GSF do them
check the push rods , make sure that they are nice and true ,, I've had one bend on me also a tappet fall to pieces ..

Why were/are you cleaning them ?

Post by **SyncroRich** » 09 Apr 2008, 17:07

I was just cleaning and refilling them because I have the engine stripped out to this point waiting for some parts to come in so I thought I'd check.
Pushrods look ok. but they had some nasty thick dirty oil inside them.

The cut outs do look like chips yeah.

I have only checked these two so far, I hope they're not all like this cos they're not cheap to replace.

Cam face is sound.

Gonna check the rest later.

Rich.

Post by **SyncroRich** » 09 Apr 2008, 17:12

I'm wondering now if the push rod wasn't seated in the tappet?
If it had dropped down and rested on the outer edge, when the engine turned over the spring pressure would have been against this rim.
On the next revolution it popped back in?

Post by **Laurie** » 09 Apr 2008, 19:32

It is regular and caused by the push rod bashing about while the tappets are filling.

Post by **SyncroRich** » 09 Apr 2008, 20:13

Laurie wrote:It is regular and caused by the push rod bashing about while the tappets are filling.

Cheers Laurie.

S'funny though, it's only on the side that the head gasket has been (badly)changed before, 3 out of 4 have notches out and one has a slight mark.

On the other side all are completely intact.

Question: Do the tappets fill completely on their own when the engine is up to full oil pressure or do they have to be filled with oil beforehand for them to work?

When I took them out I could push down the cup against the spring inside but after I cleaned then filled them with fresh oil I couldn't.

Should I replace them then like T'onion says?

Cheers for expertise guys.

Rich.

Post by **T'Onion** » 09 Apr 2008, 20:29

how many are no good ? all 4 or just the two in the picture

Post by **SyncroRich** » 09 Apr 2008, 20:31

Well three are showing damage like the two on the picture.
Only one has a little bit of the clip missing.
What should I do?

Rich.

Post by **T'Onion** » 09 Apr 2008, 20:32

I'll look in the shed tomorrow for you

Post by **SyncroRich** » 09 Apr 2008, 20:43

How come you ended up with enlightenment in your shed?

But seriously, thanks.

Would they have rattled around if they'd been filled properly first?

Rich.

Post by **T'Onion** » 09 Apr 2008, 20:48

Sorry Rich

I meant i will look in my shed of doom for 4 good tappets for you

Post by **SyncroRich** » 09 Apr 2008, 20:52

I thought that's what you meant really.

That is very decent of you.

Rich

Post by **T'Onion** » 09 Apr 2008, 20:58

I cant promise owt .. but will look