Wildefalcon
Member
- Messages
- 2,562
- Location
- Gloucestershire, England
Yes it is a Mamod.Nice work! Is it a Mamod? I had one in my youth, endless hours tinkering with it, working out how it worked etc.
I'll be there in the morning, give me a nudge about 9/10 o clock I'll PM my numberMy Hodge Clemco blasting pot has been giving me grief recently with the remote valve not working. I replaced it and although it now basically works the 'pop up valve' doesn't always seat properly. This is a large rubber mushroom that is pressed upwards by an air blast into an equally large rubber ring in the top of the pot. Once there pressure in the pot holds it in place. Now I've replaced the mushroom and the ring but occasionally the mushroom hits the ring slightly skewed and doesn't seal.
The mushroom slides on a vertical pipe inside the pot and it's height setting seems critical. At the moment I've set it using overmuch PTFE tape to give me adjustment before the threads bottom out and it's working but it seems as little as 1/4" change makes all the difference. @Brad93 has the same pot and is kindly making a comparative measurement for me but in the mean time I am by no means convinced that the 1-1/4" BSP elbow into which the vertical pipe sits is either concentric with the rubber ring / hole in the top or truly vertical. As it's inside the pot it's not the easiest thing in the world to measure . . . so . .
Today I made a dummy 1-1/4" BSP plug with a dead straight and concentric 7/16" steel rod screwed in that is long enough to extend out of the pot when the popup valve is removed. I'd hoped to use a combination of standard plumbing fittings from my odds & sods box rather than go to the trouble of single point threading this relatively large thread but was surprised how rough and none concentric their threading is - hopeless for measurements
. . . next job . . remove the mud hole cover AGAIN and faff about inside to install my 'gauge' but that's for another day.
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Very nice..did you do the plating yourself on the steel parts?I "fixed" a S38 throttle bodies. Restored from the ground up. Took more than a day but what the heck I've got nobody else to show it to!
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