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Dave Hanning
 
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Join Date: Apr 2006
Location: Portland, OR
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Nice to see updats Chris, glad your still enjoying your fabulous build! I remember when it was a roller sitting in my drivway when you came to look at it and ultimately buy it.

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1975 Carrera coupe
1974 Targa
1998 Boxster
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Old 03-11-2025, 09:25 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #661 (permalink)
Dave Hanning
 
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Join Date: Apr 2006
Location: Portland, OR
Posts: 4,396
Nice to see updates Chris, glad your still enjoying your fabulous build! I remember when it was a roller sitting in my driveway when you came to look at it and then ultimately bought it.
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1975 Carrera coupe
1974 Targa
1998 Boxster
1999 Boxster
Old 03-11-2025, 09:26 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #662 (permalink)
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Would love to see the complete exhaust installed , killer vintage race car look !!
Old 03-11-2025, 11:52 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #663 (permalink)
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Quote:
Originally Posted by nospiners View Post
Would love to see the complete exhaust installed , killer vintage race car look !!
Thanks, will post some updates of the exhaust soon
Old 03-14-2025, 07:26 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #664 (permalink)
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Whilst in and under there I wanted to take look at the driver side rear wheel...It has a slight play to it which I suspected was the bearing.





Both bearings came out ok, but the outer bearing was very loose in the hub...I read that this not uncommon, but this one would fall out with the gentlest of taps on the hub.

So I center punched the mating surface and then applied some Loctite bearing retainer and left overnight.





Next morning, after the bearings spending a night in the freezer, everything pressed together ok.




It's better than it was, but the play is still noticeable, even after getting the castle nut up to 250 lbft ! Next step is top start removing some potential other culprits of noise / rocking actions...Roll bar, shocks etc...
Old 03-14-2025, 07:28 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #665 (permalink)
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Next was to improve the Oil return routing.

The car is fitted with a larger, 930 Oil Tank. It doesn't have a front Oil cooler so the larger capacity tank is not a bad thing to have.....Other than trying to work out the correct Oil capacity. In the original build I had to modify the engine bay hole for the filler neck and filter.....In hindsight I should have fitted the earlier tank, the big problem is the thread sizes for hoses and fittings. The later tank uses M30, the earlier tank is M26...In addition the engine crankcase is also M26. Elephant Racing supply M30 - M26 adapters and elbows so fitting is fairly straightforward, the only problem I have had ( or unresolved solution ) is that the return line is a flexible hose that goes up and over the gearbox.

After abit of searching I had the plan to fit a later rigid (under the gearbox) pipe with the M30 fittings

It need bit teasing and persuading to adjust the bends to clear the gearbox, but it was fairly close...The only problem was that it fouled slightly on the crankcase.



A few choice cuts, pipe extending and brazing later it fits and looks a lot cleaner. Just about clears the wrapped manifolds.









The M30 elbow allows to fit a small section of the original hose and connect to the tank




Solving problems that shouldn't really exist.....but that's part of the fun (to me at least)

Onwards!
Old 03-14-2025, 07:29 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #666 (permalink)
 
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...and then Downwards !

So I had put everything back together and did a few loops around the neighbourhood...All felt good.

Went out for an early morning drive...pulled onto freeway on ramp, pulling hard, HARDER !!! Then revs began to die ! Pulled onto hard shoulder, then silence ........BIGGGGGG HORNNNNNNNNN!! WOOOOOOSHHHHHH goes past.... S#*t that was close !

I was on the narrowest section of the hard shoulder in a grey car, against a grey wall wearing a grey sweatshirt...not the best situation, but lets focus.

Cranked over, cranking cranking but no start. Hooked up the emergency starter pack...Cranking nothing.

After afew attempts and pumping the pedal it eventually started and I managed to nurse along the shoulder to the next exit before it died again.

Started and then died again...albeit abit closer to civilisation




Thankfully I was only a mile from home at this point, but it took another 3 of these "procedures" to limp back home.

Thought was that it was either a fuel or ignition issue...After checking everything and getting it started again noticed the fuel pressure (Malpassi fuel filter / regulator) was dropping. So changed it out and ordered a new fuel pump.

It was only when I began to pack everything back in the frunk, that I realised the petrol tank breather pipe was full of liquid...In my attempt to clean up the routing of the pipe, I had inadvertently created a P-trap ! The weather had been quite hot recently, so I suspect that some fuel had vaporised and blocked the pipe, creating a vapor lock and not allowing the flow of fuel...The pump would be sucking air, and the faint smell of fried electrics lead to believe that the pump was overheating

So tank out and planned a new pipe...The obvious way would be to go through the original factory hole, but the car is running a bigger later tank and as a result the extra volume blocks off the hole...so I drilled a new hole and routed the pipe through there. Was also a great opportunity to clean out and touch up the area.





New Facet fuel pump fitted.....sounds like a bag of spanners ! I have never really been happy with them, this is the 3rd one I have used and they all sound like they are going to explode, I even updated the isolated fixings, but it still sounds the same.



I read that the Facet pumps prefer to push rather than pull the fuel through, but I have seen many early cars and modified cars with the pumps in the engine bay. However some research lead me to order a Pierburg front mounted pump. It is supplied by Redline / Weber...

Its a lot smaller, working on a vein system...All I had to do was make a bracket which attaches onto the steering rack and also fit a 180o elbow which cleans up the hose routing. Wired in easily to the dash switch.....at least we had the foresight of labelling the wiring. Tested the pump and the noise is amazing...In the sense that it is quiet compared to the Facet, also it is a constant whine as opposed to an erratic banging.









Onwards again !!

Old 03-14-2025, 07:31 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #667 (permalink)
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