Determining clutch and flywheel help

[RoccoGilroy]

Oh, and nice work on the Nazi front… 

 

Rocco

[Slavs]

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Edited August 8, 2021 by Slavs

[RoccoGilroy]

It’s a 73 block… From this car… which if I had to guess has long since been destroyed. Maybe I’ll go down to harbor freight and buy a cheap camera to peep down the spark plug hole. 

Edited August 1, 2021 by RoccoGilroy

[tech71]

2 hours ago, Slavs said:

There you have it ! It's the same exhaustive and methodical process I use in exposing Nazis and their sympathizers and enablers.

Good info, Thanks!

 

[Slavs]

You also have the early Uber-Cool valve cover.

[Slavs]

On 8/1/2021 at 3:11 PM, RoccoGilroy said:

It’s a 73 block… From this car… which if I had to guess has long since been destroyed. Maybe I’ll go down to harbor freight and buy a cheap camera to peep down the spark plug hole. 

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Edited August 8, 2021 by Slavs

[Son of Marty]

You should be able to drop the pan and figure out the bore and measuring from the crank main centerline to the rod centerline you should be able figure out if you have a 71mm or 80 mm stroke it won't be dead accurate but you have 9 mm difference to work with.  

[RoccoGilroy]

40 minutes ago, Son of Marty said:

You should be able to drop the pan and figure out the bore and measuring from the crank main centerline to the rod centerline you should be able figure out if you have a 71mm or 80 mm stroke it won't be dead accurate but you have 9 mm difference to work with.  

Drop the pan??? Nah, I’m not THAT curious. Lol

[RoccoGilroy]

Well the “Mystery Flywheel” came in the mail today… I’m not sure what to make of it… the 1600 200mm flywheel weighed 13.5 lbs +-… This one weighs a whopping 24 lbs… the 1600 pressure plate does not match up and it has dowel pins for the new style diaphragm pressure plate so that’s positive. The bolt holes for the on the Mystery Flywheel seem to be a tad smaller than those of the 1600… the Mystery Flywheel seems to be more concave but it might just be that the flywheel surface is so much thicker than the 1600… 

 

Tell me what you guys think…  

[RoccoGilroy]

Don’t know if it helps solve any of this mystery but here’s a pic of the end of the crank after I pulled the flywheel off. Gonna have to research to figure out how to reinstall it correctly. I used a Dewalt impact drill to take it off. Hopefully that’s not a no no…

Edited August 2, 2021 by RoccoGilroy

[Slavs]

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Edited August 8, 2021 by Slavs

[RoccoGilroy]

There’s no doubt in my mind that it’s a 200mm 1600 clutch and flywheel. The step on the flywheel measures 200mm as does the disc itself. 
 

This yellow and purple spring pressure plate does not match up to the “Mystery flywheel…” The Mystery flywheel hAs a step that measures 228mm which would obviously indicate it is for a 228 clutch. Before my friend shipped it he took these pics of a used 228 diaphragm pressure plate sitting on the mystery flywheel. It fits… 

 

Soooo I have absolutely no idea where it came from or what it’s out of but it appears to be a 6 bolt flywheel that accepts the diaphragm 228 pressure plate. They’re not supposed to exist… And yet… 

 

I ordered a micrometer and a borescope off Amazon… I’ll measure the flywheel bolt holes… and I’ll run the scope in the spark plug hole and see if we can learn more. I appreciate all the help fellas…

 

Is there any way to peak inside the lower end with the borescope? Maybe through the dipstick hole?  
 

Slavs, I really appreciate what your saying about bigger is not always better. But I need to know more before I commit one way or the other. Is be extremely bummed if I put everything back together only to find that I have a clutch slipping problem… 

 

Side note, I actually had a 1.6L motor in my first 2002 for a few years. Long story but it was a good motor and a hell of a lot of fun to drive. Rev happy little guy! But I immediately felt the difference in torque. I can’t say that I could feel the difference between a 2.0 and a 1.8 as I have never driven an e21… 

 

I’ll follow up this week with more details. Borescope and micrometer should unlock some secrets. 
 

Rocco

[RoccoGilroy]

So I’m giving this a try while I’m waiting on my borescope. Never used it before but YouTube seems to think it’s great. Time will tell… I have a spark plug pulled and when the scope comes in I’ll post pics of the pistons. Hopefully it sheds some light on the situation. 
 

Rocco

 

[RoccoGilroy]

Well I got some pics of the pistons… But it cost me… I was jamming the camera probe in and out of one of the pistons shaft and the plastic lens cover for the camera appears to have come loose and fallen onto the piston… The camera went fuzzy and when I pulled it out there was no cover on the camera. I didn’t look very carefully to see what it looked like before I jammed it down there but suffice to say, I’m pretty sure something came off and went down the piston shaft because the camera quit working… 

 

Can anyone ID these pistons… I hope so because now I’m up shit creek and I hope at the very least I’ll learn something from it… (Besides not jamming a cheap camera down a piston shaft…)

 

Although I could not get a good pic, they appear to be some sort of piano top… From what I saw, not very high…

[RoccoGilroy]

I think I need to order another one and see what the camera looks like… To see if something fell off or if it just broke from jamming it in and out.