Building a 200HP Twin Spark - Page 4 - Alfa Romeo Bulletin Board & Forums
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post #46 of 256 (permalink) Old 11-26-2010, 07:39 AM
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That'll be interesting. My 1600 and 2L (ca 1974) both have bronze OEM for intake and exhaust. When did the cast iron come in?

Robert
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post #47 of 256 (permalink) Old 12-02-2010, 06:22 PM Thread Starter
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Replacing Gear Box Studs With Bolts

This will make it much easer to remove just the motor or just the gear box .I used Ez_lok Inserts for Metal

Block with Studs
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Removed the Studs One came out by Hand no double nutting required he said double nutting
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Stainless M8 1.25 Inserts comes with Loctite
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Holes Drilled Tapped and super cleaned
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Ready to be inserted
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[SIZE="2"]David Munro[/SIZE]
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1969 Spider JR Twin Spark
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post #48 of 256 (permalink) Old 12-02-2010, 06:34 PM Thread Starter
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Replacing Gear Box Studs With Bolts

Finished
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The loctite will be fully cured in 72 hours .

You can get a kit from Paul Spruell Block-rear-stud-replace-studs-with-bolts-
I had the tools for the job so all I needed were the inserts and bolts .

It was a fairly easy job with the motor on the stand . I think it would be just as easy with the gear box out and the motor in place and the car on a lift . Not sure I would want to try it with the car on jack stands . Unless you need to get your blood pressure up for some reason .


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[SIZE="2"]David Munro[/SIZE]
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1969 Spider JR Twin Spark
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post #49 of 256 (permalink) Old 12-02-2010, 06:53 PM Thread Starter
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Cleaning Head Studs

Before
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After
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A bit of a pain to get them clean from top to bottom .
I used green sanding pad and Loctite Penetrating fluid .

Any thoughts on how to stop them from getting rusty again ?


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[SIZE="2"]David Munro[/SIZE]
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1969 Spider JR Twin Spark
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post #50 of 256 (permalink) Old 12-02-2010, 11:11 PM
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Nice topic.... super-interesting.

subitocorse.com - Digital resource for classic transxale Alfa Romeo cars
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post #51 of 256 (permalink) Old 12-03-2010, 11:39 AM
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I never had much of a rust problem.
use antifreeze that should take care of most of it.
all motors I have seen with rust damage is due to lack of antifreeze.

you could also paint them with something. or electric plate them with something nickle.
or even gold. They have kits at the jewelry making places that use a few batteries wired to a brush and a bottle of plating stuff and you kinda just paint it on.
and I bet google has a ton of info on that too.

1987 black Milano Verde, 1987 (made in 1986)blue $200 gold with ABS and LSD
1972 White spider 2000 Veloce
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post #52 of 256 (permalink) Old 12-03-2010, 11:44 AM
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Quote:
Originally Posted by 69alfa View Post
Any thoughts on how to stop them from getting rusty again ?
How about painting them with anti-seize ? This is the stuff I use on the tapers of tie rod ends, steering wheels, and the like. Works like a charm for those applications.


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post #53 of 256 (permalink) Old 12-03-2010, 02:51 PM Thread Starter
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The studs were not badly rusted . Just me wanting to have everything perfect.
And I do use Anti-freeze . I'm Canadian we can extract it from our blood .

I think it would be more work than it is worth to pull the studs out to plate then.
I found this thread about stud removal http://www.alfabb.com/bb/forums/engi...studs-how.html

Not going to try that any time soon.


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[SIZE="2"]David Munro[/SIZE]
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1969 Spider JR Twin Spark
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post #54 of 256 (permalink) Old 12-03-2010, 08:12 PM
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who said pull the studs use the brush on type of plating.

1987 black Milano Verde, 1987 (made in 1986)blue $200 gold with ABS and LSD
1972 White spider 2000 Veloce
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post #55 of 256 (permalink) Old 12-03-2010, 08:38 PM
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...Any thoughts on how to stop them from getting rusty again ?...
You might try some black oxide on them to keep them from rusting while unassembled, 'though with a good antifreeze you shouldn't have a problem once its closed up. I'd clean them up with a good wire brush to get the thread roots clean.

Robert
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post #56 of 256 (permalink) Old 12-04-2010, 09:05 AM
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you can prolly use rust converter jell to treat the bolts.

If I am not mistaken, it has phosphoric acid which coverts the bolt iron surface to rust resistant iron phosphate surface

worth a try.

andres
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post #57 of 256 (permalink) Old 12-04-2010, 11:44 AM Thread Starter
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I like the gel idea . Thanks


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post #58 of 256 (permalink) Old 12-04-2010, 05:47 PM
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post #59 of 256 (permalink) Old 12-12-2010, 04:19 PM Thread Starter
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All Clean

I got the block all cleaned up and took off all the extra bits from the casting .

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Now that's better


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post #60 of 256 (permalink) Old 12-12-2010, 04:51 PM
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Hi Dave
What product did you use?

[FONT="Comic Sans MS"]Ken Lee
Alfa Dogs #13
Oakville, ON[/FONT]
73 GTV
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