Spider Technical FAQ Digest - Page 4 - Alfa Romeo Bulletin Board & Forums

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post #46 of 139 (permalink) Old 05-28-2009, 10:47 AM
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Schematic supplied by SamW of a home made socket to work the pinion flange of the differential so the seal can be replaced.


Darren
'84 manufacture ~ '85 MY Spider Graduate

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post #47 of 139 (permalink) Old 05-28-2009, 07:34 PM
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Quote:
Originally Posted by Tifosi View Post
Schematic supplied by SamW of a home made socket to work the pinion flange of the differential so the seal can be replaced.
Here's the website that diagram was sourced from, a decent write-up of the steps involved in making the tool:

The Art of Tool Making or, How to Make a Differential Pinion Nut Removal Tool


Edit: Proper measurements for the 1750 ring nut/socket:

1750 pinion ring nut

Bob Farace
1971 Alfa Romeo 1750 Spider Veloce
1987 Alfa Romeo Milano d'Oro
Director, Connecticut branch, Scuderia Non Originale

Last edited by Farace; 06-09-2010 at 05:49 AM. Reason: original site gone; found the article on a different site. Added link to 1750 update.
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post #48 of 139 (permalink) Old 06-03-2009, 10:30 AM
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Testing L-Jet air flow meter (AFM) with a multimeter

The 5 contacts at the harness plug point are as follows:
1) temp sensor 1 1st wire
2) potentiometer contact 1 to pcb
3) potentiometer contact 2 to pcb
4) potentiometer center contact for sweep arm
5) temp sensor 1 2nd wire

Using a digital multimeter set on impendance, the following results should be achieved across the various contacts.

1~5 (taken at 70 deg/F) 2.98 K ohms
Spec for temp sensor 1 is 68F 2.2-2.8 K ohms, 104F 1.05-1.35 K ohms, 176F 270-380 ohms.

2~3 220 ohms

2~4 (flap closed) .5 K ohms
2~4 (flap full open) 275 ohms

3~4 (flap closed) 335 ohms
3~4 (flap full open) 50 ohms

*Note that there will be some small degree of error from one AFM to another based on wear and tear, carbon track condition and the specific orientation of the PCB to the sweep arm. Ambient temperature will obviously effect temp sensor 1.

Nor will these numbers tell you if there is a 'dead spot' in the carbon tracking.

Simply put, these amount to a quick check to allow testing to see if an AFM has all it's connections functional and putting out to some degree of accuracy in the event you don't have access to the uber expensive and really hard to find Bosch test kit, a spare AFM to swap in and try, are trying to figure out if that AFM on the shelf in your buddies garage is there for a reason other than dust collection, or perhaps trying to find a different sized AFM to swap on for more intake airflow.

Darren
'84 manufacture ~ '85 MY Spider Graduate

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post #49 of 139 (permalink) Old 07-14-2009, 11:55 AM
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AC maintenance

Post with a scan of the shop manual regarding series 3 spider (possibly other models also) air conditioner/conditioning maintenance, including belt tension adjustment with the split crank pulley.

Darren
'84 manufacture ~ '85 MY Spider Graduate

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Last edited by Tifosi; 07-14-2009 at 11:58 AM. Reason: reworded a couple terms for easier search function pickup
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post #50 of 139 (permalink) Old 07-29-2009, 04:52 PM
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The Key switch goes bad for the starter

OK, if you car is not starting because your switch is going bad, here are two easy (compared to swapping an ignition switch in a Spider) solutions you can try.

Add a starter button while keeping you key switch.

Starter Button instead of key

Adding a starter relay to take the load off your switch.

Starter Gremlins

Hope this helps!

'86 GTV6 - No Name
'88 Verde w/no sunroof - Bella
'89 Spider Quad - Red
'86 Spider Quad - Silver - SOLD
'89 RC30
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post #51 of 139 (permalink) Old 08-29-2009, 02:28 AM
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S2 dash warning lights ~ lamps

Thread containing an informational description / purpose of the 4 lights in the upper center console triple gauge cluster area on Series 2 spiders.

Important to know in general, even moreso if using the SPICA fuel system.

Darren
'84 manufacture ~ '85 MY Spider Graduate

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Last edited by Tifosi; 08-29-2009 at 02:33 AM.
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post #52 of 139 (permalink) Old 09-12-2009, 02:18 PM
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L-jet TB stop screw

Link to post with description of how to properly set the S3's L-Jetronic throttle body stop screw.

Darren
'84 manufacture ~ '85 MY Spider Graduate

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post #53 of 139 (permalink) Old 09-12-2009, 05:39 PM
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Bumper Conversion Mysteries Revealed!

Well, almost. After scouring dozens of old posts on the subject of converting 75-82 Spiders ( and later ones too) to stainless bumpers, this thread has the best information concerning making your own conversion brackets: Another bumper question


These brackets appear to be very similar to the ones being sold by Spider Point and other vendors.

Andy
81 Spider - 1980 VIN
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post #54 of 139 (permalink) Old 09-17-2009, 07:59 PM
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Transmission bushing

Orientation of the offset for the trans mount bushing:

Darren
'84 manufacture ~ '85 MY Spider Graduate

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post #55 of 139 (permalink) Old 09-24-2009, 09:11 AM
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L-Jet Throttle Body Throttle Shaft and Bearing

are shown disassembled in this post along with a sealed replacement throttle shaft bearing, SKF 608 2RSJEM, that should eliminate air leaks.

Link: http://www.alfabb.com/bb/forums/carb...sassembly.html

Andy
81 Spider - 1980 VIN
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post #56 of 139 (permalink) Old 10-18-2009, 11:43 AM
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Setting up a manually operated AAV ~ auxillary air valve using Advance Auto part # 74627 (comes in plastic or metal, either will do) and a common manual choke cable kit so you don't have to spend hundreds of $$ on a replacement AAV.

With pix.

Darren
'84 manufacture ~ '85 MY Spider Graduate

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post #57 of 139 (permalink) Old 10-27-2009, 10:51 AM
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VVT O-ring

Nice info bit regarding a rarely mentioned o-ring on the VVT, that may help you seal up an oil leak and keep your engine compartment nice and clean.

Losing a lot of oil past the VVT

Part number and dimensions here

VVT seal and tool questions!

'87 Series 3
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post #58 of 139 (permalink) Old 10-28-2009, 08:36 PM
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Fitting headlight covers onto series 3 and series 4 spiders

A good example of what needs to be done to get the carello headlight covers onto the later series that they don't normally fit.
With pix:

Headlight cover install for S3 & S4 Spiders

Darren
'84 manufacture ~ '85 MY Spider Graduate

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post #59 of 139 (permalink) Old 11-20-2009, 06:46 AM
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Differential housing differences

Post with pictures showing the casting differences between the late limited slip differential vs the earlier open differential that may be of use for quick~n~easy identification rather than taking a PO's word for it.

Darren
'84 manufacture ~ '85 MY Spider Graduate

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post #60 of 139 (permalink) Old 11-23-2009, 12:30 PM
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Series 3 dual pod center console

Post with pix of early ('82~'85) series 3 center consoles with and without air conditioning that shows the difference in the console side panels, cigarette lighter area and the under-dash on passenger side.

Darren
'84 manufacture ~ '85 MY Spider Graduate

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