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[Gatornapper]

I have a slight oil leak on this plug on the oil pump and want to install an new sealing ring.

I have no tool with which to take this plug off. It is flat on 2 sides but circular on the other two. No wrench I have will fit in tight area.

Is there a special tool I need to purchase?

Any work-arounds?

See pic below.

TIA,

GN


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'87 944 S, looks & runs like new - sold my sweet 931; '76 914 2.0 mostly restored; 2011 Porsche Cayman S in Meteor Grey, 3.4L, Softronics ECU tune 355+hp , PDK w/Sport Chrono. Got this thing for Porsche's.......

[924RACR]

Yeah, you'd need to remove the oil manifold from the block, then use a bigass wrench.

Not too awful of a deal, but obviously will need the rest of the seals associated.

I guess the one thing I'd throw at you, before diving into that, is to be 100% certain the leak is actually from that part of the oil manifold; there's the feed line to the turbo up top, more typical sized copper washers on a banjo bolt; entirely likely that (or something else above) is leaking and dripping down.
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Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

[peterld]

you may want to live with a slight oil leak there until such time as you pull the motor, or pull the turbo.
I did make up a "speciäl" tool years ago....consisted of two small bars with a cross piece welded on the top, hogged out to take a 1/2 inch bar. Lots of tension puts stress on everything else, particularly the oil filter housing and associated plumbing. Make sure you have the correct aluminium crush washer before you attempt this task.
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80/81 932/8 ROW

[924RACR]

Incidentally - that's not the oil pump, the oil pump is on the front of the engine around the crank, just behind the pulley.
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Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

[Fasteddie313]

That’s the oil cooler thermostat right?
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80 Turbo - Slightly Modified

[924RACR]

Yeah, there's a thermostat in there for the oil cooler, it obviously houses the oil filter, and provides the connections to the oil cooler plus the feed line to the turbo.

One of the more efficient bits of design on the car...
_________________
Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

[Gatornapper]

Thanks guys - all great info. Yes, all new seals if I remove it all.

Seems leak from this fitting & seal is very minor, drop a day maybe, so yeah, I can live with it. Actually thought this wasn't oil pump as I saw it has 2 springs inside from diagram.

So now you all have me wondering how the two springs open and close the oil flow to the cooler as it's temp control. Is one of the springs bi-metallic?

I tightened up all other oil fittings and seems there are few to no leaks elsewhere, but obviously could not get to top of turbo area.

Engine is running nice and cool unless it sits and idles for extended time - think cooling fan #2 isn't working. I have new coolant, water pump, thermostat.

You guys are all such a great help.

GN

[924RACR]

Exactly - bimetallic strip to open and close the port to the cooler.

Second rad fan is influenced by one of the AC relays, this often keeps it from working. Both fans should run on full if you turn on the internal AC fan (obviously I'm assuming you have AC, but most US cars did at that point), so that'll be the first check. Note that this should be true even if your AC isn't charged/working.
_________________
Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype