vinny1275
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| posted on 9/10/07 at 11:57 AM |
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Removing Pinto Dizzy?
Hi all,
Well, the fuel / engine mods are going well, the Daihatsu alternator arrived last week, and it's tiny! Should fit between the chassis rails
without too many problems - thanks to swmbo's dad who's been busy making brackets and stuff for us!
As we're going over to efi / electronic ignition, can I just remove the dizzy from the engine and blank it off? It's the electronic type
if that makes any difference. There's a hex'd tube on the bottom of the dizzy that appears to drive something, but I'm not sure what
- would that have been the drive for the old mechanical fuel pump maybe?
TIA,
Vince
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stevec
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| posted on 9/10/07 at 12:06 PM |
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It drives the oil pump,
Steve,
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vinny1275
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| posted on 9/10/07 at 12:10 PM |
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quote:
Originally posted by stevec
It drives the oil pump,
Steve,
Best not leave that out then! Is there any way I can make it look nicer than having the top of the dizzy sticking out of the block - is it possible to
leave the drive in but chop the top off or something?
Cheers
Vince
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PeterW
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| posted on 9/10/07 at 12:27 PM |
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Yep
Rip the guts out of the top, and cut it down just above the flat flange at the point it goes into the block.
There is a bronze bearing in the bottom which can stay, and just cut the inner shaft down to below the level of the flange. It can't move
upwards due to the shape of the shaft. Cap the top off with an offcut of ally - either stick it on with chemical metal or tack it with a tig
welder.
It fits back where it should, and doesn't interfere with anything. Secure it with the dizzy retaining plate
Cheers
Pete
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DaveFJ
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| posted on 9/10/07 at 12:28 PM |
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I have chopped mine off - BUT I have still not run the engine so it is not yet proven!
I chopped through leaving about a 1" stub, removed the broze bearing from the top of the shaft and got Dave Jenkins to open up the throat
slightly on his lathe, to take the bearing so that the shaft was secure. I just need to cap off the top somehow and i'm done... 
[Edited on 9/10/07 by DaveFJ]
Dave
"In Support of Help the Heroes" - Always
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pajsh
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| posted on 9/10/07 at 07:16 PM |
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I chopped mine up about half way along the shaft and thought, bu99er it's all wobbly that's no good and threw it away.
Should have asked a question ......doh!
I used to be apathetic but now I just don't care.
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jollygreengiant
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| posted on 9/10/07 at 08:52 PM |
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Bits out of the cosworth block should do it.
Beware of the Goldfish in the tulip mines. The ONLY defence against them is smoking peanut butter sandwiches.
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DarrenW
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| posted on 10/10/07 at 08:43 AM |
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I retained the upper and lower bronze bushes in mine. If you think of the dizzy as a shaft / housing that is approx 3" long with a body on the
top that takes the weights and rotor arm etc - i basically chopped off this upper body and filed it round then shortened the shaft so it sticks out
about 5 - 10mm. This has been fine for me.
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