Building a hot vintage engine with Jonny69

Jonny69

you should not use coolant when turning cast iron ( unless its the very high tech stuff £20 gall ) as it work hardens when the coolent chills it , it then gets that hard it will not cut, CI that has been uses as a bearing also becomes work hardened on the surface due to the oil .


I do a lot of CI turning/milling in making the things in my sig and hard spots are the bain of my life


I would put that head back on the surface plate as i bet its warped now with that heating and welding
 
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lordedmond said:
you should not use coolant when turning cast iron ( unless its the very high tech stuff £20 gall ) as it work hardens when the coolent chills it , it then gets that hard it will not cut, CI that has been uses as a bearing also becomes work hardened on the surface due to the oil .
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Funny your should mention that because when I finished someone said don't use coolant and I noticed hard spots but assumed it was sand in the casting. Had to make teeny tiny cuts in the end or it didn't go through :D

I'll see how it goes with the head, it seems to have gotten away with it. I plan to lap it onto the block with some grinding paste anyway and if there are any high or low spots that should show them up.
 
Thought about it but it's not a point where it has to flow well and I've knocked the tops off them with a stone. If it's an issue I'll do it or get another head on the go as it's not as if they are expensive. I don't actually have a die grinder so jobs like that are quite difficult.

In hindsight what I would have done is begun the weld in the middle of the vee and worked outwards in one continuous weld (rather than 3 runs) so the high spot appears in the middle rather than off on one side. But it's difficult to see exactly what you're doing without stopping and taking a look with the naked eye. Like I said it's not a flow point so it probably won't make any difference.
 
You're giving me dirty thoughts about a 100E running a period-tuned sidewall and done in a resto-cal style...

*n
 
Well the final box of goodies just landed on my desk. Some adjustable lifters, timing chain, head studs, valve springs and an engine mount. I shall ignore how much that cost :eek:
 
Jonny69 said:
Well the final box of goodies just landed on my desk. Some adjustable lifters, timing chain, head studs, valve springs and an engine mount. I shall ignore how much that cost :eek:
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While ignoring it, how much do replacement parts cost for a car/engine this kind of age? I'm guessing most will new pattern parts rather than salvaged originals? Is there much done in the way of modernising materials/designs for these kind of parts?

btw: good luck with the rest of it, I love reading these kind of threads.
 
bam0 said:
While ignoring it, how much do replacement parts cost for a car/engine this kind of age? I'm guessing most will new pattern parts rather than salvaged originals? Is there much done in the way of modernising materials/designs for these kind of parts?
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General day to day stuff is quite cheap. Some parts can be surprisingly expensive because none of it is interchangeable with later engines like all the Kent crossflow kit is, so yeah it's all new pattern stuff. But then things like the gaskets etc even for crossflows are starting to get expensive because the demand is dropping off. Tuning goodies cost what they cost and it's pretty much the same across the board and the Aquaplane inlet and exhaust were quite a lot but then a twin DCOE manifold and decent tubular exhaust for a Pinto or Crossflow would cost roughly the same new. The only thing is I normally get all that stuff cheap second hand but it's just not around any more for an engine this old.
 
You knows it.

But sidewall? I must have been daydreaming of tyres when I made that post :/

Things I like (Which I think you will too):

Straight front axles
Spindle-mounts
Gasser stance
Fenderwell headers
Spun alloy MOON fuel tanks (and MOON in general...was it you who used to have an equipped sig?)
Piecrust slicks
Rubber rake
High-pro crossplies
Low-tech/high-tech mixes

;)

*n
 
penski said:
You knows it.

But sidewall? I must have been daydreaming of tyres when I made that post :/

Things I like (Which I think you will too):

Straight front axles
Spindle-mounts
Gasser stance
Fenderwell headers
Spun alloy MOON fuel tanks (and MOON in general...was it you who used to have an equipped sig?)
Piecrust slicks
Rubber rake
High-pro crossplies
Low-tech/high-tech mixes

;)

*n
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hell yesss to all of those

Moon especially, anything moon sits right with me, and yea it was me who had the moon equipped sig

the '34 has got a 5gal Moon tank, Moon peep side mirrors, Moon blue dot teardrop rear lights, chrome Moon shift knob

add to the list:
mag wheels
whitewalls
flat paint
metal flake
heavy chops/chanel jobs
slam it to the deck
 
Didn't get round to doing much this weekend but had second thoughts about the welds in the head. Took my comically underpowered cheapo fake Dremel to the welds and cleaned them up. Got through loads of wheels, grinding stones, a miniature burr and managed to destroy both the cheap brass collets and the arbors that the grinding wheels mount on. Never mind, it made a good job of them and here's my mate Chris lending a hand:

21-07-07_1649.jpg


Little did he know he'd later end up in hospital with a chunk of this in his eye. It had gone rusty so they had to dig out not only the chunk of metal but a piece of his eye where the rust had set in :D

So there's my safety tip for today folks, when you do this make sure you squint...
 
LOL. Just got back from eye casualty to get an iron filing out. Gotta go back wednesday so they can dig out the rust thats been left behind. Not nice :(
 
Grim. I hate eye stuff :eek: :D Hope it all goes well.

Bravo on your sig effort there Batf1nk. I remember finding that thread the next morning :D
 
Jonny69 said:
So there's my safety tip for today folks, when you do this make sure you squint...
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Glad to see you taking safety seriously, Mr J. Too many people nowadays just go in without taking even the simplest precautions.

My safety tip of the day, when folding away the scissors on a Gerber multitool, make sure you watch what you are doing. That way you may not gouge a large hole in your index finger.

Safety is like Tescos... every little helps :D
 
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