Spica Blanking Plate - Alfa Romeo Bulletin Board & Forums
 
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post #1 of 11 (permalink) Old 05-20-2019, 02:39 PM Thread Starter
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Spica Blanking Plate

Hello Gents,

I have a Weber Converted '81 Spider. Can someone please post a picture or diagram of where on the engine block the blanking plate for the SPICA's sit. I'm trying to fettle an oil leak and suspect this may be the culprit.

Thanks,

GC

'81 Spider (Weber's, Euro Bumpers, Custom Interior) Ivorio over Red | '54 Austin Healey 100-4, Bone Stock save for M cam, Carmine over Black.
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post #2 of 11 (permalink) Old 05-20-2019, 03:19 PM Thread Starter
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Is the red arrow pointing to the plate?
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'81 Spider (Weber's, Euro Bumpers, Custom Interior) Ivorio over Red | '54 Austin Healey 100-4, Bone Stock save for M cam, Carmine over Black.
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post #3 of 11 (permalink) Old 05-20-2019, 03:27 PM
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Yes it is, definitely pointing at it, sorry couldn’t help myself!

Cars ruined my life! 😱
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post #4 of 11 (permalink) Old 05-21-2019, 06:28 AM
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I'm curious about the goal of all the stuff where the oil pressure sender normally goes?

Cheers,

Carson, 4 Alfa's, 9 Cars, 4 Motorcycles
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post #5 of 11 (permalink) Old 05-21-2019, 07:01 AM
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Quote:
Originally Posted by Crowbar44 View Post
I'm trying to fettle an oil leak and suspect this may be the culprit.
As I recall, there is a square-section "O" ring between the timing chain cover and the Spica pump that seals the oil supply to the pump. You need to have that "O" ring installed when the block-off plate is used. So perhaps that part is missing, causing the oil leak.

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Originally Posted by vintagemilano
I'm curious about the goal of all the stuff where the oil pressure sender normally goes?
I assume the add-on plumbing supports a sender for an auxilliary gauge. But I'm concerned that the unsupported pipe & fittings are prone to fatigue from vibration. A failure there would result in a rapid loss of oil.

Jay Mackro
San Juan Capistrano, CA

'63 Guilia spider
'65 Guilia Sprint GT
'67 Duetto
'91 164L

Last edited by Alfajay; 05-21-2019 at 07:06 AM.
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post #6 of 11 (permalink) Old 05-21-2019, 09:33 AM Thread Starter
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SPICA Blanking plate

So all kidding aside - is this the blanking plate for the SPICA? My car still has some equipment bolted to this region, I suspect it is some vestige of the SPICA...and I'm pretty sure it's leaking oil.

FYI the pictures above is not of my car....just something I grabbed off the web
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post #7 of 11 (permalink) Old 05-21-2019, 10:02 AM
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Quote:
Originally Posted by Crowbar44 View Post
is this the blanking plate for the SPICA? My car still has some equipment bolted to this region, I suspect it is some vestige of the SPICA...and I'm pretty sure it's leaking oil.
Yes, the red arrow in that photo points to the Spica block-off plate. That car has no Spica gear left, but I can't comment on your's. But other than the block-off plate, I can't imagine what other Spica-related stuff could cause an leak oil.

Quote:
FYI the pictures above is not of my car
OK, you're excused for the klugey pipe & sending unit shown in the photo.

Jay Mackro
San Juan Capistrano, CA

'63 Guilia spider
'65 Guilia Sprint GT
'67 Duetto
'91 164L

Last edited by Alfajay; 05-21-2019 at 10:17 AM.
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post #8 of 11 (permalink) Old 05-22-2019, 06:44 AM Thread Starter
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So this is what's sitting in my car at the location the blanking plate should be... I'm assuming it's some residuum of the SPICAs. I'm planning to remove it and install a proper blanking plate


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'81 Spider (Weber's, Euro Bumpers, Custom Interior) Ivorio over Red | '54 Austin Healey 100-4, Bone Stock save for M cam, Carmine over Black.
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post #9 of 11 (permalink) Old 05-22-2019, 06:47 AM
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Quote:
Originally Posted by Crowbar44 View Post
So this is what's sitting in my car at the location the blanking plate should be... I'm assuming it's some residuum of the SPICAs. I'm planning to remove it and install a proper blanking plate
Yes, you're right. Looks like a PO left the lower part of the Spica pump in place, and then bolted a homemade block-off plate to the top of that. Don't know why that set-up would leak, but using a purpose-built block-off plate would certainly be neater.

Jay Mackro
San Juan Capistrano, CA

'63 Guilia spider
'65 Guilia Sprint GT
'67 Duetto
'91 164L
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post #10 of 11 (permalink) Old 05-22-2019, 07:54 AM Thread Starter
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Thanks Jay,

A question to all on the blanking plate - does it need a gasket or is Permatex enough for a seal? No-one who sells the blanking plate sells an accompaying gasket... I could always make one out of gasket material...
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post #11 of 11 (permalink) Old 05-22-2019, 08:06 AM
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I could always make one out of gasket material...
That would be your best bet. You don't even need to cut out the inside - just trace the outside of the plate, put 4 holes in it, and you're done. Hmm - in thinking some more, the gasket may need a 5th hole, near the center, where the O ring seats.

If your goal is to stop oil leaks, I wouldn't try the short cut of skipping the gasket and just using sealant.

Jay Mackro
San Juan Capistrano, CA

'63 Guilia spider
'65 Guilia Sprint GT
'67 Duetto
'91 164L
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