74 replies to this topic

[mike.]

Oh my god - Can't belive i've done that. I was looking down the wrong hole.

Dam I feel retard now...


Moving on i've took the right nut off now and removed the spring and can see the ball. Only thing is I can see around the ball is a smaller hole. Does the hole the valve sits in have a shouldered edge before you put the ball in?

Its hard to explain but to me it looks like there might be a standard valve, with the ball inside it. Is this possible - Does anybody know if the ball will fit inside the standard bullet?

I'll try and get the bal out now...

[GraemeC]

The ball, or the bullet, sits on a valve seat that is pressed into the block. I doubt the ball would go inside the bullet but I've never tried it! There will be a shouldered edge showing.

The seat looks like this:

[mike.]

Here a photo of whats in there now - This is right isn't it?



Now I can see on the photo, theres no bullet valve in there is there? Its just the ball right?

If this is right i'll try cutting the spring...

Edited by mike., 08 July 2010 - 02:28 PM.

[Yoda]

whoops, i missed that one too, no valve no pressure, and i used to be a hydraulic technician DOH!

something stuck inside the bullet would certainly make for high pressure, as it will compress the spring too much. memory is failing me now as to how it should look, i might just have to go and take one out to remind me.

[mike.]

Yeah well looking at the photo you posted and the photo of my block - It looks right doesn't it?

With the shouldered part around the edge with the ball sat in there with the spring ontop...

[Ethel]

That's some photo, what's the white light down there - portal to another galaxy? Have a poke with a bit of wire if it goes more than a inch beyond what you can see there's no bullet or other blockage.

[mike.]

That's some photo, what's the white light down there - portal to another galaxy?

HAHA

Here another photo of the portal with the white light removed - aka the ball.

Is this right?

[Ethel]

looks good, but try the wire thingy.

[GraemeC]

Looks good to me. To be honest I doubt you would get the cap back on if both the bullet and the ball were in there.

Cut 1 to 1.5 coils of the spring, refit and see what that gives.

[mike.]

Cool - Bit of a panic over then - Thought I must of had a major blockage somewhere.

I've tryed poking a wire down there, can't feel any blockages...

I'll give the spring a go then.

[mike.]

Ok i've cut down the spring abit - Probably around 1.5 coils and i'm now getting 90psi. Should I leave it at that and get the car running smooth and warm it up to bed the cam in or should i cut more off the spring to get it down to about 80psi?

Bearing in mind i've got the adjustable valve on the way...

[bmcecosse]

The problem is - your gauge will have been stretched now by the +100 psi and you can't rely on it's reading. Get another gauge - at least on loan - to check the REAL pressure. 80 psi is fine - then see where it settles when you have the oil REALLY hot after a good hard run.

[mike.]

Ouch. I was hoping that really wouldn't be the case as it cost me the best part of £70

I'll see if I can get a second hand smiths or something to test with for now.

If the gauge has been stretched, how badly would this effect its accuracy?

[Dave33]

Im trying to work out what part of the gauge is gonna be 'stretched' by running 100psi?
Just curious,am not doubting its plausible or anything such.
Dave

[Ethel]

Where the needle returns to would give you a clue if it has been strained. Pressure is pressure, you could hook the gauge up to something something at a known pressure (push bike tyre?) to test it. - not directly to a pump, there's no volume so it'd rapidly get over pressurised.

Dave, there's a curved chamber inside that gets less curved when it's inflated, a bit like one of those party tooters.