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kapri
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« Reply #315 on: January 18, 2015, 11:25:16 AM » |
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Nice little handformed teardrop blister over the carbs with bellmouths protruding through no problem for a man of your talents.
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Olds
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« Reply #316 on: January 21, 2015, 08:25:43 PM » |
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That is the general idea Kev. Been playing around with tubing, trying to make the exhaust manifold. Two thirds done. It's supposed to run outside and parallel to, the bonnet side and the front chassis leg cover, as it drops down towards the firewall ( if that makes any sense). Not going to grind down the welds fully, just smooth of them, as the whole thing is going to be wrapped. Thought I'd have this finished in an afternoon. Some chance ! I must be getting old.  |
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« Last Edit: January 21, 2015, 09:46:44 PM by Olds »
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Getting older but no wiser! Just using bigger hammers.
The answer to most problems, fire and lots of it.
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Manky Monkey
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« Reply #317 on: January 22, 2015, 05:11:32 PM » |
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That looks great matey.
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On the last freedom moped out of Nowhere City.
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Olds
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« Reply #318 on: January 22, 2015, 06:14:27 PM » |
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Cheers. Just about finished apart from perhaps fitting a flange on the exit. At the moment it has a reduced section to take a slip on pipe. Keeping everything lined up and not distorting while welding was a real pain. Had to make a couple of adjustments with the grinder and mig.
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« Last Edit: January 23, 2015, 06:42:28 AM by Olds »
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Getting older but no wiser! Just using bigger hammers.
The answer to most problems, fire and lots of it.
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morrag
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Carpe diem!
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« Reply #319 on: January 22, 2015, 08:19:26 PM » |
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Beware the Ides of March, But!
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Manky Monkey
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« Reply #320 on: January 22, 2015, 08:22:52 PM » |
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I welded up a pair of stainless steel cross-over silencers & tail pipes for my Pop last year & the pipes ended up 1/4" out of line on each side so they don't meet the existing pipes -gonna make the rest of the system fit the tail pipes cos it's easier than reworking them!
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On the last freedom moped out of Nowhere City.
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Olds
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« Reply #321 on: January 23, 2015, 09:02:01 AM » |
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Did what was supposed to be the final weld with it bolted to the head. I had to lever the damned thing off, then couldn't get it back on!
Just hoping that once it's well wrapped, the float bowls wont get too hot. Might make a pair of small heat shields held on by the float chamber lid screws
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« Last Edit: January 23, 2015, 09:09:13 AM by Olds »
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Getting older but no wiser! Just using bigger hammers.
The answer to most problems, fire and lots of it.
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Manky Monkey
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« Reply #322 on: January 23, 2015, 09:07:04 AM » |
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 glad it's not just me then!
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On the last freedom moped out of Nowhere City.
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Olds
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« Reply #323 on: January 25, 2015, 09:00:12 PM » |
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No it's not just you Andy. I am more than capable of making a right pigs ear up of this sort of thing. Decided to keep with the idea of a slip on exhaust pipe rather than flanges as it looks so much cleaner Manifold painted in VHT paint prior to wrapping. Hopefully this should arrive on Tuesday. Not had 100 per cent success with VHT pain in the past. The idea is you let it dry then run the engine to fully cure the paint. But and it's a big but, if the temperature goes too high before the paint is fully cured, it will come off. The ideal temp for this paint is 250 degrees C. Only one way I know of, to maintain that temperature for a period of time is a temperature controlled heating box, otherwise known as, 'the oven'. Will have to wait till Mrs Olds goes out tomorrow  |
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« Last Edit: January 25, 2015, 09:03:21 PM by Olds »
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Getting older but no wiser! Just using bigger hammers.
The answer to most problems, fire and lots of it.
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kapri
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« Reply #324 on: January 25, 2015, 09:10:05 PM » |
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Dave, I usud to cure my VHT coating with an electric heat gun played along the inside and outside.
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the coppersmith
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« Reply #325 on: January 26, 2015, 04:33:04 PM » |
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Not telling anyone how to suck eggs. When you fabricate a manifold type thing that is bolted up to "fixed point" when you finish welding you should stress relieve the pipes, bit of good heat from a blowtorch, then let them settle, when cold they should un-bolt easy. Good time to Sperex them to, as they cool, wire brush and spray, wear a mask!
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Olds
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« Reply #326 on: January 26, 2015, 06:50:44 PM » |
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You are of course correct but the blow torch had no gas  so it was easier to just slit cut and re weld. |
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Getting older but no wiser! Just using bigger hammers.
The answer to most problems, fire and lots of it.
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Olds
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« Reply #327 on: January 28, 2015, 04:25:14 PM » |
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Manifold finished. Well apart from replacing those awful stainless ties with stainless hose clamps. The ram pipes arrived today. Wrong ones and not a matching pair  But I put them on for the pic anyway. Think I might have to have a go at metal spinning to get what I really want. |
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Getting older but no wiser! Just using bigger hammers.
The answer to most problems, fire and lots of it.
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Manky Monkey
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« Reply #328 on: January 28, 2015, 04:59:22 PM » |
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Looks fabulous Dave. Very tidy wrappage. What's wrong with the cable ties?
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On the last freedom moped out of Nowhere City.
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merv
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« Reply #329 on: January 28, 2015, 07:12:04 PM » |
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Looking very nice Dave
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Why do every five minute job take all day, and
if it can go wrong it will go wrong
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