02GF74
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| posted on 20/5/06 at 08:34 AM |
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back to crossflow cylinder head...
I am trying to work out the tpe of crossflow head (flat or with combustion) that is fitted to my engine without having to take it off.
I am guessing the ones with machined chamber in the head would have a shorter spark plug hole so if someone can measure the distance from the top of
the hole (spark plug seat) to the end (inside the chamber) for both heads - at least the flat head - then mucho gracias.
Hopefully by using a hooked wire poked through the spark plug hole I should be able to work out what is fitted, wire method shown below.
Now I assume both castings are the same and that the spark plug seat is machined to be the same for both heads, if not then this method
won't work.
[img][/img]
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jollygreengiant
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| posted on 20/5/06 at 09:00 AM |
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All cross flows used the same spark plug, the only easy way to tell if yours is flat or chambered is by the casting numbers (but its been so long I
can't remember the difference). Other than that you might be able to see the cut outs on the piston crown lip to combustion bowl (this means
flat head) or lack of cut outs in in the lip means chambered head. (POSSIBLY if no ones been mixing and matching parts).
Failing that use a fibre optic camera or whip the head off.
Enjoy
Beware of the Goldfish in the tulip mines. The ONLY defence against them is smoking peanut butter sandwiches.
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britishtrident
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| posted on 20/5/06 at 09:41 AM |
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Flat heads are flat
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02GF74
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| posted on 20/5/06 at 06:41 PM |
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well a poke with a wire and thing strip of ali seems to show I have non cut outs - bugger. this is what I owuld expefct statistically .
(half of the spark plug is in the flat part, other is in the cut out part so it is possible to feel for the step).
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