It Seems I Have Contracted A New Disease

[AlanG]

would a dowty seal be of help in this instance?

Edited May 15, 2008 by AlanG

[Kenny.S]

As long as there's 2-3mm of flat surface for the washer to press against it should seal up fine.

Who put the Heli-coil in?

Edited May 15, 2008 by Kenny.S

[jac]

  Kenny.S said:

As long as there's 2-3mm of flat surface for the washer to press against it should seal up fine.

Who put the Heli-coil in?

It was that long ago he has forgotten

[colin_ross]

  AlanG said:

would a dowty seal be of help in this instance?

Alan,

I had considered a crush washer of some sort, know of any local suppliers?

Kenny - there is flat surface left so I'm sure a seal will be achievable with some trial and error. When we remove the banjo you can see the washers have been pulled out of shape, puckered almost, probably because of the increased diameter of the hole.

JAC - I put it in, Johnny sh@t out of that one

[Kenny.S]

The washer shouldnt get distorted, even if the hole is slightly bigger, i take it you heli-coiled it back to the original thread? Is the heli-coil definately in 100% straight? If it's off slightly it'll tighten up on one side before the other, possibly not by much but it could be enough.

[colin_ross]

  Kenny.S said:

The washer shouldnt get distorted, even if the hole is slightly bigger, i take it you heli-coiled it back to the original thread? Is the heli-coil definately in 100% straight? If it's off slightly it'll tighten up on one side before the other, possibly not by much but it could be enough.

Yes, back to the original thread.

I can only assume it's straight so you may be right there. Think a crush washer would over come any imperfections?

Have also been advised to try thread lock or 3 bond but not too sure about the implications/complications of this.

[Kenny.S]

When you put it together i take it you've tried nipping it up, slacken it off a bit and repeat a few times to help seat the copper washer? Sometimes works better than just tightening it right up in one go. An aluminium washer might have more give in it.

I dont know if thread lock would help for this, the leak path is between the banjo, the copper washer and the head so sealing the thead wont help, oil will go up the centre of the bolt and still find it's way to the washer.

You could change the fitting in the head to a male/male adapter M10x1.25 to -4 (or whatver size you oil feed hose is) and change you oil feed pipe to suit. This way you could use thread lock, as you would be stopping the oil getting to the washer in the first place, assuming nothing can get up between the heli-coil and the head, which it shouldnt do to be fair.

Edited May 15, 2008 by Kenny.S

[colin_ross]

I should have been clearer on the thread lock, the suggestion was to smear the washers with it not coat the threads.

Modifying the oil hose has been discussed. I was thinking of having the banjo end replaced with a larger one and retapping the block (minus the heli) to restore the hole/bolt/banjo harmony. I like your idea too, might be a bit simpler.

[AlanG]

I'll have a look here to see what i've got and would use Colin, got a better idea of what the problem is now. I'll give you a bell when i've done.

[JohnSt]

  AlanG said:

I'll have a look here to see what i've got and would use Colin, got a better idea of what the problem is now. I'll give you a bell when i've done.

Done ? what on earth are you 'doing' at that time in the morning

[AlanG]

Been up and busy since the crack of dawn, so feels like i've been on the go all day!

[colin_ross]

  AlanG said:

I'll have a look here to see what i've got and would use Colin, got a better idea of what the problem is now. I'll give you a bell when i've done.

Much appreciated Alan, as always.