75 S to R Homage

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911hillclimber
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Re: 75 S to R Homage

Post by 911hillclimber »

I found that quite funny!
Sorry.
The mod is to stop starvation of the main jets from fuel moving away from the base of the float chambers. Also he details a lot on venturi diameters/carb size.
I'm not too sure just how critical the sizing actually is.

My 3.2 runs 50mm PMO with 36 venturies, way too be but runs fine now, (or rather did..)

My beef is with a specialist, some very poor basic machining work and the resulting after sales service, but it is behind me now, sorted things out myself, usually the best way.

I am not a fan of specialists unless I really have to use them due to special equipment or my ignorance.

Just remembered I should have bought the DTI gauge back from work..... :oops:

One day you will all get as old as me. :?
73T 911 Coupe, road/hillclimber 3.2L
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
haasad
Me and DDK sitting in a tree! KISSING
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Re: 75 S to R Homage

Post by haasad »

Just a little progress since I had to wait for plating and my billet for the oil pump cover is not ready :roll:

Made a little fixture to bore the insulator washers.A job for the little lathe.

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Fitted the inlet and exhaust studs and checked header fit.

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Got to wrap the headers before fitting but that's all straight forward.

andy
ddk member# 1527
Austin Healey 100/6, 1957 Fast Road ( now sold)
75 2.7 S backdated to "r" and very light (now sold).
Adria Camper
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Friar Tuck kneeboard.
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911hillclimber
Nurse, I think I need some assistance
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Re: 75 S to R Homage

Post by 911hillclimber »

Itchy job too!
Looks good, starting to catch you up a bit. :wink:
73T 911 Coupe, road/hillclimber 3.2L
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
myatt1972
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Re: 75 S to R Homage

Post by myatt1972 »

Looking good.
Is that an Emcomat 7 you are using, Ive had mine for a good few years and its been a great little machine, the milling head is useful to but finding spare parts for them is hard.
Keith...

73 911e sporto
73 914 2.0l
86 928s S2
85 Mazda Rx7 (TWR)
85 Mazda Rx7
The Bonser fork truck
Volvo V40 T4 (200bhp workhorse)
Lightweight_911
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Re: 75 S to R Homage

Post by Lightweight_911 »

Just out of interest, why are you wrapping the headers ?
Andy

“Adding power makes you faster on the straights;
- subtracting weight makes you faster everywhere”
haasad
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Re: 75 S to R Homage

Post by haasad »

Keith, yes it is ..good spot. Its a nice little machine the tool post was a bit poor but thats fixed now. I've not had to buy any spares so have no experience of that. I also have a larger machine ( installed at my dads), that being a harrison 400.

Andy, Im wrapping them to help with efficiency and keep heat soak down. The headers are very close to the lower rocker boxes. I've always done it on other cars with certainly no detrimental effects, I swear on my Europa the engine space was cooler afterwards based purely subjective assessment.

andy
ddk member# 1527
Austin Healey 100/6, 1957 Fast Road ( now sold)
75 2.7 S backdated to "r" and very light (now sold).
Adria Camper
Buddy McCrae kneeboard.
Friar Tuck kneeboard.
Lots of Bicycles.
haasad
Me and DDK sitting in a tree! KISSING
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Re: 75 S to R Homage

Post by haasad »

Pictorial up date

Image
guess what it is?
Image
a little parallel thinking
Image
waiting on moulded air cleaner parts

need to borrow a float height gauge?
ddk member# 1527
Austin Healey 100/6, 1957 Fast Road ( now sold)
75 2.7 S backdated to "r" and very light (now sold).
Adria Camper
Buddy McCrae kneeboard.
Friar Tuck kneeboard.
Lots of Bicycles.
Lightweight_911
Nurse, I think I need some assistance
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Joined: Wed Nov 12, 2003 10:48 pm
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Re: 75 S to R Homage

Post by Lightweight_911 »

haasad wrote:Pictorial up date
- guess what it is?

Sump plate ?

Engine's looking good ! 8)
Andy

“Adding power makes you faster on the straights;
- subtracting weight makes you faster everywhere”
haasad
Me and DDK sitting in a tree! KISSING
Posts: 2568
Joined: Tue Oct 19, 2004 8:46 pm
Location: Dorchester

Re: 75 S to R Homage

Post by haasad »

Wrapped up and trial fit, Andy spot the sump cover....

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Image

Image

Does the metal oil cross over tube look correct? Its very close to the headers....

andy 2
ddk member# 1527
Austin Healey 100/6, 1957 Fast Road ( now sold)
75 2.7 S backdated to "r" and very light (now sold).
Adria Camper
Buddy McCrae kneeboard.
Friar Tuck kneeboard.
Lots of Bicycles.
butzsi
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Re: 75 S to R Homage

Post by butzsi »

I need to borrow a float height gauge?
I have one Andy - I will be using it in the next few days but after that you are welcome to borrow it to use and perhaps make a copy of.

Chris
Porsche - Diesel, the next most affordable Classic
haasad
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Re: 75 S to R Homage

Post by haasad »

Chris, very kind thank you give me a shout when you are done...
ddk member# 1527
Austin Healey 100/6, 1957 Fast Road ( now sold)
75 2.7 S backdated to "r" and very light (now sold).
Adria Camper
Buddy McCrae kneeboard.
Friar Tuck kneeboard.
Lots of Bicycles.
haasad
Me and DDK sitting in a tree! KISSING
Posts: 2568
Joined: Tue Oct 19, 2004 8:46 pm
Location: Dorchester

Re: 75 S to R Homage

Post by haasad »

Now ready to fit gearbox to motor and then install but still waiting for a couple of new studs from Porsche . Lined up the plate with a standard tool from sealey I think. I've made a little floor trolley on wheels to support the assembly and let the trolley jack underneath as suggested by the good folk of DDK.

Image
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Going to need to chase up Chris to borrow a float height gauge and still looking for any old oil pipes.

Even I can see the end is in sight now :roll:
ddk member# 1527
Austin Healey 100/6, 1957 Fast Road ( now sold)
75 2.7 S backdated to "r" and very light (now sold).
Adria Camper
Buddy McCrae kneeboard.
Friar Tuck kneeboard.
Lots of Bicycles.
Lightweight_911
Nurse, I think I need some assistance
Posts: 18005
Joined: Wed Nov 12, 2003 10:48 pm
Location: Worcs/W Mids border

Re: 75 S to R Homage

Post by Lightweight_911 »

:cheers: :cheers: :cheers:

Can't wait for the engine's first fire-up !
Andy

“Adding power makes you faster on the straights;
- subtracting weight makes you faster everywhere”
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Darren65
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Re: 75 S to R Homage

Post by Darren65 »

Looking great 8)
911hillclimber
Nurse, I think I need some assistance
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Re: 75 S to R Homage

Post by 911hillclimber »

All action this weekend then Andy?
Got to happen soon....you are 4 start-ups behind me and 3 rebuilds too....

Good luck. A vid of it running will be nice.
73T 911 Coupe, road/hillclimber 3.2L
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
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