Hi. Would there be any interest in copper head gaskets? The only reason I ask is because I am in touch with a firm that makes gaskets & was going to see if I could get some made at a reasonable cost, normally the more you have made the cheaper it becomes, although copper is not cheap these days.
I will make inquiries today anyway to see what I can get them done for
Get them from Lani in the US. Avalable in a range of thicknesses, cost around 12 quid each (I paid $46 for 2 with shipping) -This is cheaper than Draganfly composite gaskets and included P&P!
If someone orders a few they should come out at 12-13 quid each, ready made, no hassel getting someone to start making them. No brainer unless you can get them significantly cheaper and have time on your hands.
I've mailed Lani for a quote for 10 gaskets with shipping to the UK or Germany (dats where I am).
I'll let you know the unit cost when he replies. If nobody else takes up the idea I may get some for anyone prepared to pick them up at Stafford or the BSA international in Germany. Or TT John may have some by then anyway.
Cheers
Pete
I'd be interested in a couple! Cant be bothered with getting them in from the USA. I've made one in the past which I'm currently using, it is a hassle and you have to buy the copper sheet of course.
Lani has replied already!
He will do them for $17 (US) each and shipping would be in the region of $20 (depends on end weight) so say around $20 (12.50 imperial) each would be fairly accurate.
Anyone interested? Anyone in the UK want to organise it? I can do it but, as I said, I'm in Germany so distribution would be a bit more difficult for me (and I've got my gaskets already )
Cheers
Pete
Hi John..With a standard engine you should fit a gasket 1mm (.040") thick to guarantee maintaining a correct piston to head clearance. Some attention should be paid to this during engine assembly. With the base gasket fitted the piston should come flush with the top of the barrel. A .040" thick gasket will then give that amount of clearance with the engine static. However, when running flex in the crankshaft assembly will reduce this figure. If the STATIC clearance falls below .030" there is a real chance the piston will contact the head.
However, for the squish area to function correctly it is generally accepted that RUNNING clearance should not exceed .040". If a thicker than standard cylinder base gasket is used this figure may be exceeded.
So to conclude..check that the piston IS flush with the gasket face..then use a .040" thick gasket. When running the squish will then fall in the correct .030"-.040" range...Ian