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Cylinder #2 more fragile ?

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Old 06-20-2005 | 11:55 AM
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Default Cylinder #2 more fragile ?

Hi guys,

A friend of mine is racing with a genuine 944 Turbo Cup, 18" wheels and slicks (235 front, 265 rear) and broke his motor twice... and still because of a lack of lubrification on the #2 cylinder apparently..

Can you give him some advices for avoiding this when i will rebuild the engine. Is there some modifications to do to be sure there won't be any other lubrification problem ?
Maybe modifications on the oil sump and/or the crankcase but what to do ?

Thanks
Old 06-20-2005 | 12:01 PM
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Perp drill the crank. Oil gets held in the galley of the crank and in hard turns it's worse on the #2.
Old 06-20-2005 | 12:07 PM
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Originally Posted by MichelleJD
Perp drill the crank. Oil gets held in the galley of the crank and in hard turns it's worse on the #2.
You mean... like on these pictures ?
Are there any downside effects to do that ?


Old 06-20-2005 | 12:31 PM
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Hmmmm,,,,not a 944 part....what is it?

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Old 06-20-2005 | 12:43 PM
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Originally Posted by Chris White
Hmmmm,,,,not a 944 part....what is it?

Chris White
As far as i know, it is a 944 part (951 crankcase if i'm not wrong) modified for a better lubrification
Old 06-20-2005 | 12:45 PM
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No, that's a 928 32V engine the guy was showing us.

Anyway it's way too large for being a 944's.

The side effect is that you won't need to replace bearings preventively every ~120k miles anymore.
Old 06-20-2005 | 01:20 PM
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Originally Posted by Thom
No, that's a 928 32V engine the guy was showing us.
Oops, my fault sorry (i didn't understand anything with the german speaking)
Old 06-20-2005 | 05:13 PM
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Wenn man ein Porsche fährt soll man ein bisschen Deutsch verstehen und sprechen
Old 06-20-2005 | 05:34 PM
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Originally Posted by Asarus
You mean... like on these pictures ?
Are there any downside effects to do that ?
No; the crank, not the girdle.
Old 06-20-2005 | 06:31 PM
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Originally Posted by MichelleJD
No; the crank, not the girdle.
Do you have some pictures of what to do ?
Old 06-20-2005 | 07:50 PM
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At 90 degrees on each side from the oil galley you see, you should have a machine shop drill a hole. The added galleys allow the oil out of the crank to better supplt the rod bearings.
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Old 06-20-2005 | 07:55 PM
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I found this pic - it shows two of the galleys at 90 degrees in the far left cylinder (#1) :
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Old 06-20-2005 | 11:34 PM
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People seems to try:

cross-drilling the crank
installing baffles in the oil pan
running oil level a bit higher than full
using an Accusump
Old 06-21-2005 | 03:49 AM
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Asarus:
Is it the cyl. that is not getting enough lubrication or the rod seizing on #2 journal? There are different solutions for each.
Old 06-21-2005 | 08:49 AM
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i am going to:
Install a baffle
Install an accusump


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