broos3

I have just re painted the rocker cover. I replaced the gasket and the half moon seals at the cam pulley end. Problem is that it leaks. only a small amount, i have tried to tighten the bolts up but i dont want to tighten further.

I think im going to buy a new gasket and seal and use a small amount of sealer. Is this a good idea or should i get a rubber gasket?

Any info on this would be nice

Bruce

Daz-rst

did you replace it with a standard gasket or uprated one? did you tighten it down the same way you would tighten down a head?? as sometimes the cover can be bowed/warped and need to be tighten down in the same sequence as you would tighten down a head on an engine.

broos3

Yeh I tightened it properly over the diagonals. And yes its the standard gasket not "uprated".

Its only leaking at the cam pully end of the gasket so it could be the half moon seals more than the gasket.

Bruce

broos3

I have also noticed that the timing belt does not sit perfectly centre on the pulleys. Its sitting more to the front of the engine.

Bruce

tabetha

The belt is guided by the tensioner, they never do sit in the middle.
I would use some LOCTITE 5910 on the half moons.
The r/cover needs next to zero pressure to hold it on, and I would be amazed if tightening or loosening one of these could cause warpage, what ever sequence was used as the clamp force is so low.
tabetha

broos3

Cheers tabetha,

So theres not much i can do about the belt sitting to close to the front? Its on the edge of every pully. It wont be more likely to snap or get damaged if not running true?

Yeh will get myself a new gasket and moons then try again. With some sealer or other. Any recomendations on the gasket make?
http://search.ebay.co.uk/search/sear...ket&category0=

Bruce

cossie604

iTrader: (2)

As above, use some sealant on the half moons..its only required where the half moons join up to the rocker gasket. Dotn waste your money on the rubber gaskets...I did and it went in the bin after around 10min of use

The Cometic gaskets are a very good gasket if you still wanna change it.

broos3

Cool I will look into getting a cometic one. Would make more sence, as it can be used more than just the once.

tabetha

Belt will be perfectly ok as it is on the pulleys.
I need a new r/c as well so am getting cometic.
I would not use just ANY sealant I would use the one I use LOCTITE 5910, expensive but it works awsomely well, always used to use HYLOMAR b4 this but gave it all away as soon as I started using this stuff and have never looked back at all.
tabetha

broos3

Hermerite gold is the stuff we use at work. I will have a look for the loctite you use.

Where did you get it?

Bruce

captiva

I had the same problem and found it to be the front cam shaft cap, took it off put sealer under and hey presto leak gone

tabetha

I always put sealer under caps in fact anywhere metal to metal occurs.
If you phone LOCTITE on 01442 278100 they will be able to put you on to your nearest supplier, as the stuff is not as available as it could be.
I get mine from BRAMMER UK, in Norwich, Norfolk.
tabetha

broos3

I have not had the cam caps off so i would guess thats not the problem, but a good thinkg to know none the less.

I will give loctite a call today. Thanks tabetha

Bruce

tabetha

No probs matey, this is ace stuff, I use it on everything, have even used it on sumps on some very old cars with NO GASKET available to perfect effect with no leaks at all.
tabetha

broos3

Would it be an idea to smear some of the 5910 on the cometic gasket? Or should it work perfectly well on its own?

Can you re-use the Half moon seals?

Bruce

tabetha

You don't need it on COMETIC gaskets as they are very very good.
I reuse the half moons if they are ok and not torn etc, and always coat with Loctite as well, particularly the ends of them.
tabetha

broos3

Ok the leak is still there, even after using the cometic gasket and sealer around the half moons. The gasket was perfect did not leak at all. So it still could be the half moons.

I did not use the loctite 5910. I used normall gasket sealer (blue stuff) is this ok?

The leak could also be the actuall cam seals or even the cam shaft caps. But both of these are less likely.

Bruce

tabetha

Another place is the area between the cap and head!!
It should be obvious where the leak is from if you clean it all up nicely, don't expect it to seal with a lot of sealants as they are crap, hence why I use Loctite.
tabetha

broos3

Yeh i thought it could be from the cap to the head. But i have not removed either of them. And the engine was completly oil tight before I removed the rocker cover.

The only reson i never used the loctite stuff was of the price. Was about £25 for a wee bottle. So just used the normall gasket sealer.

Think i may need to get some of the loctite, or somthing similar.

Bruce

broos3

What did the manufacturer use when building the engine for the first time?

Bruce

tabetha

LOCTITE is used on productions lines as it is RTV and HIGH MODULOUS, they use a SLIGTLY different version, as it much faster curing.
A tube of LOCTITE 5910/5900 should cost you around £6/7, I get mine from BRAMMER UK, local stockists are everywhere.
tabetha

broos3

Yeh i have located a retailer nearer me. So get a tube of that and do it properly.

The cometic gasket that i fitted was great. But when i removed the rocker cover the gasket was squished. I thought it would return to its normall shape. I would suspect that it needs to return to its originall shape. It was a re-useable gasket. Is this ok? Will it still seal?


bruce

costina

iTrader: (1)

Gasket should b fine i've had mine off twice now..

Most common place for these to leak is :

cam caps to head these require sealer( i also use loctite)
cam bearing o rings ( this sit around the bearing carrier)

broos3

Would these need to be replaced if i removed the cam caps to reseal?

I also have the camshaft seals think it might be worth changing them aswell? Will i need to replace the O rings if i change the cam seals?

Im still waiting on getting the Loctite 5910

Cheers