Oil leaks

[Azazello]

On my furgonette I have two little leaks (or at least I can see just these for now); one from the cap on the rocket cover, easily fixable with a new cap or just a new gasket. The other from the rear side of the head: looking to the bulkhead, there is a hole closed with a rubber grommet that is worn... have to check on the other engine if it is normal to have a hole in such position and need to know if the grommet is easy to buy... and even curious to know why it is there!

 

[mojobaby]

Hi Azazello, the shaft of the rocker arms is made up of 2 parts. There is a hole in the front of the cylinder head to withdraw the front bar and also a hole at the back of the cylinder head to withdraw the back rocker bar.
The hole at the back has the rubber grommet. When I removed my grommet, it broke in 2 pieces, so I am also looking for a new one, but I don't know who stocks them.
Here is a photo of the removal of the back rocker bar. I screwed a bolt with a nut into the rocker bar and pulled it out by turning the nut

Here is also a photo (blurred) of the grommet lining up perfectly with the end of the rocker shaft

 

[Azazello]

Yes is definitely him! Thanks mojobaby!
Since I would prefer not to finish breaking mine before having a new one to put there, can you measure for me the diameter of the hole?
If anybody knows where to look for finding a new one or equivalent...
Bolt and nut of the right diameter with a rubber piece (tyre inner tube, for example) could be a suitable replacement?

 

[mojobaby]

Hi Azazello, I think that a nut and bolt would work perfectly, with rubber washers on both sides to protect the aluminium head when the nut is tightened. I still have the 2 pieces that broke and I'm thinking of trying to glue them together, but I don't know if the glue will hold with the heat from the engine.
The hole itself is 12mm

 

[mr-reno-139]

Remember when I had a dauphine gordini engine in pieces 2 years ago having this problem and noticed that one of my scrap heads had an aluminum plug in it I was able to removeit carefully and using a smear of silicon it worked fine
Wether it was originally fitted or maybe had been made by someone I don't know
I guess a core plug would also work but working in situ may be a problem
Of course rear engined cars no problem for acess