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Is this proof of a 928 squirter block?

 
Old 03-10-2009, 03:07 AM
  #16  
Vilhuer
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Official reason for delete from '88 MY yearly documents:

Bores for piston crown cooling have been omitted in the upper crankcase section since January of 1987 because of positive endurance testing results. Oil spray jets, which had been pressed into the main bearing seats, are therefore also omitted.
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Old 03-10-2009, 01:11 PM
  #17  
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The motor number is 81H06569 this is a automatic car.
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Old 03-10-2009, 01:14 PM
  #18  
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Originally Posted by Vilhuer View Post
Official reason for delete from '88 MY yearly documents:

Bores for piston crown cooling have been omitted in the upper crankcase section since January of 1987 because of positive endurance testing results. Oil spray jets, which had been pressed into the main bearing seats, are therefore also omitted.
Porsche really gave us something there?
What does that mean?
They were omitted because of positive tests?

I really wonder is some bean counter had something to do with this?
It had to cost them some money to install these.
I also wonder how in the heck I am going to clean them out.
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Old 03-10-2009, 01:17 PM
  #19  
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The only way I can interpret that is that they did some tests without the squirters and came to the conclusion that they were unnecessary. So they could save on extra costs of machining those holes in there. Squirter engines also have the potential to burn more oil. Too bad we will probably never know the real reason.

Dan
'91 928GT S/C 475hp/460lb.ft
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Old 03-10-2009, 01:45 PM
  #20  
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What exactly are/were bores for piston crown cooling in the upper crankcase section?

81H06569 is automatic engine 1569. Thats quite high number.

If 35% of '87 cars made were with manual gearbox and both automatic and 5sp engines lost squirters at same time it means some 800-900 or even more manual engines had squirters.

Total worldwide '87 MY production was 4715 cars or possibly little more. 1569 + 900 = 2500 or even some more cars. This means at least half of the '87 MY production have squirters.

This means cars made in February '87 or even later will have them. This would mean ROW VIN 1000 or little larger will have them as do US VIN 1200 or even larger.
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Old 03-10-2009, 02:28 PM
  #21  
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I was not expecting to see the squirters in this engine, I thought it was outside the "Known" engines with them.
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Old 03-10-2009, 02:31 PM
  #22  
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Originally Posted by blown 87 View Post
They would not do that, never have, never will, the Cayman is just slow, if you want to go fast, buy a 911, simple.
You're just repeating the marketing line right?
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Old 03-10-2009, 02:34 PM
  #23  
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Originally Posted by blown 87 View Post
I don't know, heck I am not even sure I know where my fuel rails and intake are after this much time.
I think all the early '87 'ribbed' intakes also used the 4 bonded rubber buffers. The fuel rails are different for intakes with the buffers. Later rails won't work with the earlier intakes.
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Old 03-10-2009, 02:47 PM
  #24  
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Originally Posted by worf928 View Post
You're just repeating the marketing line right?
If I had the funding I would have one of those after RUF got done with it.

They are what the 911 should be IMHO.
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Old 03-10-2009, 03:48 PM
  #25  
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Originally Posted by Vilhuer View Post
What exactly are/were bores for piston crown cooling in the upper crankcase section?
I am not sure what you are asking?
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Old 03-10-2009, 04:52 PM
  #26  
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Originally Posted by Sterling View Post
those are the transparent aluminium pistons from star trek......
They do look Lightweight
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Old 03-10-2009, 05:44 PM
  #27  
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Hey guys

My Euro MY1987 S4 5spd has a ribbed intake, folding wing, plastic oil filler and the following engine number: M28/41 81H 01248.

Can anyone tell me whether it has squirters?

Cheers

Joel

Last edited by hopwood; 03-11-2009 at 06:15 AM.
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Old 03-10-2009, 06:16 PM
  #28  
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Worf928,
You have mail,
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Old 03-10-2009, 06:28 PM
  #29  
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blown 87,
You have mail (take two)
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Old 03-10-2009, 06:41 PM
  #30  
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My car has a folding wing, the plastic oil filler, ribbed intake, and Solid fuel rail mounts. Vin #1387 on an auto. I have no idea if it is a squirter block, but it may help show when some of the other changes fell during model year 87.
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