WBX

[Aidan]

I just bought 500 off 7mmx1mmx20mm yellow passivated HT machine screws, 11mm hex head, as Wurth no longer do them in 100s, had to come from Germany, actually made in Italy
I could have had them made locally

[itchyfeet]

Interesting, 20mm is still too long though.

I take it you mean tap the Cam SB, do you know how thick it is, looks to me about 6mm
If so you need a 12mm long screw M7x1 and then what to lock it in place? peen the end over? a bit crude.
I wonder if the screw head would touch the oil pump, will look later.
Do you see any reason why it would need to be high tensile?
http://www.superkart.it/engine-spare-pa ... 5-tm-49727" onclick="window.open(this.href);return false;
https://www.kartingshop.nl/en/link/3110 ... x12-5.html" onclick="window.open(this.href);return false;

Needs to be an easier way for people to swap cam gears

[silverbullet]

Loctite. Chemicals win in this environment. I did look at getting some button-head ones made but it was a cost thing. At 4 per engine it would make them look expensive and/or I would never use them all up!
The tap we already have (modular alloy wheels use M7 x1 Titanium alloy screws)

Sent by Morse code from the bunker

[silverbullet]

PS most specials tend to come in the highest tensile rating by default

Sent by Morse code from the bunker

[itchyfeet]

looks to me like the standard hex heads on the link above ( some sort of go kart clutch bolt) would fit, may have to get some

P1040654 by Paul_Barr, on Flickr

[silverbullet]

Think you will find that a regular cap head will foul the back of the oil pump at the bottom.

Sent by Morse code from the bunker

[itchyfeet]

these are not cap heads, look like reduced height hex
http://www.superkart.it/engine-spare-pa ... 5-tm-49727" onclick="window.open(this.href);return false;

[silverbullet]

Sorry. Didnt follow the link. Might just do it if you can get a socket on them.

Sent by Morse code from the bunker

[Jawin89]

My engine rebuild has just been completed and has gone from this:



To this:



And along the way:














Very pleased with the results and first road test this weekend

[Ant-t]

Looks really good, well done

[itchyfeet]

Yeh ^^^^^^^looks great Jason, good pics

Mine got it's heads fitted tonight, always a worry when torqueing the head nuts but all went well

Got to make another thin 0.07mm paper oil pump gasket, the Elring gasket in the kit 0.25mm that's thicker than the aftermarket ones from Brickwerks and VWH at 0.15mm

P1040672 by Paul_Barr, on Flickr

[Jawin89]

I know what you mean about the head nuts, worrying times.

I used a very thin bead of Reinzosil sealant on the oil pump cover to make sure it sealed correctly. It was applied very carefully with a thin piece of wire as not to spread and foul the pump itself. Controversial I know but that was the solution I came up with.

[itchyfeet]

I know what you mean about the head nuts, worrying times.

I used a very thin bead of Reinzosil sealant on the oil pump cover to make sure it sealed correctly. It was applied very carefully with a thin piece of wire as not to spread and foul the pump itself. Controversial I know but that was the solution I came up with.

I thought about that too but using the yellow sealant for head nuts, be interesting to see how you get on with that, the pump can push 5 bar cold before the relief valve goes.

[Jawin89]

The gasket is in there too but so far so good. I will let you know how it goes.

[itchyfeet]

I can't help thinking you loose as much pressure from the gap between pump and engine case on the outlet.
I used a smear of the yellow head nut sealant last time.