Engine Seized? - Page 28 - Alfa Romeo Bulletin Board & Forums
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post #406 of 572 (permalink) Old 02-22-2018, 09:57 PM
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You were spot-on! After a little sleuthing, I found this:
Air Cleaner Mount for 1983 Mercedes 300SD

My article measures to within 1mm of diameter and overall length to this; I think we have a winner!
You can also use them for the main fuel pump mounts.

1969 1750 Spider Veloce w/dual webers, 1969 1750 Berlina, 1971 1750 Spider Veloce w/ dual webers, 1985 Spider Veloce 23,000 orig. miles, {Two} 1986 Spider Veloces, 1987 Spider Veloce bought new, 1988 Quadrifoglio, 1991 164S, Plus several more. I think they are breeding.
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I just got 2 more. Now I have a Matta. I must be crazy.
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post #407 of 572 (permalink) Old 04-29-2018, 07:55 PM Thread Starter
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As part of my re-assembly, I wanted to repair the 2nd gear synchro and perform the 1st gear synchro mod to my transmission. ...Might as well, while I have everything apart, right?

Yesterday, I imposed upon a friend who had done these tasks before. It only took us a few hours, working at a leisurely pace. I don't have a hydraulic press of my own, and was a little intimidated by the whole process, even with the excellent tutorial by @Vintre.

I think I chose wisely in asking for help. I now have a good understanding of how my Alfa gearbox works. Synchros, dog gears, etc no longer pose such a mystery to me!

I still have to press in a new input seal, reinstall the bell housing, and fill with oil. This will free up some garage space, and I can commence with installing the new valves in my engine's head!
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-Kevin
1988 Spider Veloce (with lots of 3D printed parts)
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post #408 of 572 (permalink) Old 05-03-2018, 08:28 PM Thread Starter
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I got the transmission completely re-assembled this evening, and the garage tidied up a bit. I'm really pleased with how the trans turned out, and it is well-sealed with Ultra-Grey and silk thread.

I actually started installing valves in the head tonight!

I had a horrifying thought this evening: With repairing the engine, and refurbishing the transmission, I am on the path to a leak- and drip-free Alfa Spider! Is such a thing allowed? Will I get booted from AlfaBB?

While I have the car still apart, I'm seriously considering fabricating the pinion nut tool, and replacing the pinion seal. Then my leak-free hypocrisy will be complete!

-Kevin
1988 Spider Veloce (with lots of 3D printed parts)
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post #409 of 572 (permalink) Old 05-03-2018, 09:39 PM
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With repairing the engine, and refurbishing the transmission, I am on the path to a leak- and drip-free Alfa Spider!
Wake up Kevin, you're dreaming.

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post #410 of 572 (permalink) Old 05-03-2018, 10:13 PM
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My daily is a sweet BMW 325Ci Coupe that has a SULEV certificate. (Super Ultra Low Emission Vehicle). It will fail CA smog test with any oil leaks at all! They don't even need to start the car.

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post #411 of 572 (permalink) Old 05-04-2018, 06:01 AM
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Quote:
Originally Posted by Shakey View Post
With repairing the engine, and refurbishing the transmission, I am on the path to a leak- and drip-free Alfa Spider! Is such a thing allowed?
Oh no! You have cursed yourself!
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post #412 of 572 (permalink) Old 05-05-2018, 04:18 PM Thread Starter
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Yesterday, I got the valves etc. installed in the head, as well as the camshafts and chain tensioner. Everything went together well, and the leak test was good. I did a test-fitting of the head onto the block, mainly to visualize how I was going to get the timing chain installed, and the camshafts timed properly.

I measured my tappet clearances; I will need to do a little math, and order some shims. This is probably due to me lapping the valves to clean up the seats.

When I began to re-install the tensioner, I found that I'd installed a small bolt where the tensioner bolt was supposed to go, probably for safe-keeping:

The threaded portion of the bolt is about 8mm long, and it has what appears to be an aluminum washer on it. I'll have to be vigilant as I continue, to determine the proper location for this item. I cannot complain...this is the first 'bonus' part in the process...either leftover, or missing part! If anyone has an idea, I can quit playing 'Where's Waldo' much sooner.

I just found out that I have a few weeks of military duty starting soon, so this will further delay my progress. At least when I get back, I'll have shims and a pinion seal waiting for me!

A question: The engine overhaul manual cautions about installing and checking only one camshaft at a time, to avoid valves touching. Can they really interfere? It seems they won't actually move that far; of course, better to err on the side of safety.

Now, off to Harbor Freight to get a digital caliper that will measure the shims!

-Kevin
1988 Spider Veloce (with lots of 3D printed parts)

Last edited by Shakey; 05-05-2018 at 05:18 PM.
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post #413 of 572 (permalink) Old 05-05-2018, 05:46 PM
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A digital caliper won't work. You'll need a micrometer so the tip can go inside the shim. Just the part that sits on top of the valve not the skirt that keeps the shim located on the valve is measured. That plug looks like a gearbox or dif plug. Nothing motor related comes to mind but we're talking my mind here so don't bet the farm on that
On the tensioner bolt... when the tip is in the block there are 3 or 4 threads showing, if it's not engaged the bolt goes in far enough so no threads or just one is showing.
Looking good!

The passenger seat is 15 miles an hour faster than the drivers seat.

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71 Berlina in 2L restored driver
the ones that got away:
1959 750 series Giulietta Spider Veloce
1962 Giulietta Spider normale
1965 Giulia Sprint normale
1972 GTV
1974 GTV
1974 GTV
1977 Spider
1974 Spider
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post #414 of 572 (permalink) Old 05-05-2018, 06:06 PM
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The bolt looks like the coolant plug on the left side of the block, underneath #4 exhaust.

Ed Prytherch
79 Spider
76 Suzuki GT500
2011 Jaguar XKR

A little government and a little luck are necessary in life, but only a fool trusts either of them. - P.J. O'Rourke
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post #415 of 572 (permalink) Old 05-05-2018, 06:07 PM Thread Starter
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@gigem75, I'm with you! This is what I bought for $24 at Harbor Freight:


I haven't removed the camshaft yet, but I think the pointy side will fit inside the shim's skirt, and the flat side sit on the top.

I used a wooden broom handle to leverage the tensioner while installing the bolt; I couldn't bring myself to jam a metal pry-bar in there! The tensioner bolt has 3 threads showing and is holding well, so I think I got it right. Thanks for the tip!

-Kevin
1988 Spider Veloce (with lots of 3D printed parts)
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post #416 of 572 (permalink) Old 05-05-2018, 06:19 PM Thread Starter
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Quote:
Originally Posted by alfaparticle View Post
The bolt looks like the coolant plug on the left side of the block, underneath #4 exhaust.
My photo didn't do it justice in scale; on my block that's a larger brass-looking nut with a copper washer.

For now, I'll just put it in a baggie with a big question mark on it.

-Kevin
1988 Spider Veloce (with lots of 3D printed parts)
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post #417 of 572 (permalink) Old 05-05-2018, 06:56 PM
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I think I bought my mic somewhere around 1972 before those fancy digital thingys
You can adjust the valves with the head on the bench and do them one side at a time. Put a 2x4 under each end of the head so when you rotate the camshaft they clear the bench. If you are concerned about one sides valve hitting the other side valves loosen the caps on the side you're not adjusting and everything will clear.
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The passenger seat is 15 miles an hour faster than the drivers seat.

currently
2017 Giulia Q4
74 GTV restored daily driver
71 Berlina in 2L restored driver
the ones that got away:
1959 750 series Giulietta Spider Veloce
1962 Giulietta Spider normale
1965 Giulia Sprint normale
1972 GTV
1974 GTV
1974 GTV
1977 Spider
1974 Spider

Last edited by gigem75; 05-05-2018 at 07:02 PM.
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post #418 of 572 (permalink) Old 05-05-2018, 06:59 PM Thread Starter
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Quote:
Originally Posted by gigem75 View Post
I think I bought my mic somewhere around 1972 before those fancy digital thingys
I'm certainly not saying anyone's old (I would have been in elementary school in '72), but if one has to calculate shim thickness on an abacus, well...
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-Kevin
1988 Spider Veloce (with lots of 3D printed parts)
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post #419 of 572 (permalink) Old 05-05-2018, 07:04 PM
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Many of us who were in high school in the pre-calculator days can do mental arithmetic
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79 Spider
76 Suzuki GT500
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A little government and a little luck are necessary in life, but only a fool trusts either of them. - P.J. O'Rourke
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post #420 of 572 (permalink) Old 05-05-2018, 07:50 PM Thread Starter
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Quote:
Originally Posted by alfaparticle View Post
Many of us who were in high school in the pre-calculator days can do mental arithmetic
Do I get partial-credit for knowing how to use a slide-rule?
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-Kevin
1988 Spider Veloce (with lots of 3D printed parts)
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