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> Mystery engine is out
Rand
post Mar 25 2020, 09:59 AM
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QUOTE(914werke @ Jan 17 2020, 06:49 PM) *

Crazy! (someone rotate Toms Pics (IMG:style_emoticons/default/smile.gif))

Fix the real problem: Teach the poster which side of his phone is up.
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poorsche914
post Mar 25 2020, 10:04 AM
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QUOTE(Rand @ Mar 25 2020, 10:59 AM) *
Fix the real problem: Teach the poster which side of his phone is up.

(IMG:style_emoticons/default/WTF.gif) It's the forum programming... not the photographer or camera.
Click on the image and it will enlarge AND be properly rotated.
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Tdskip
post Mar 25 2020, 10:06 AM
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QUOTE(Rand @ Mar 25 2020, 10:59 AM) *

QUOTE(914werke @ Jan 17 2020, 06:49 PM) *

Crazy! (someone rotate Toms Pics (IMG:style_emoticons/default/smile.gif))

Fix the real problem: Teach the poster which side of his phone is up.


@Rand - It's off the car and on the floor - the rotation is correct as it is the best way to show the interesting thing the PO did.
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Brett W
post Mar 25 2020, 03:56 PM
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Back in the day, when guys were drag racing with a lot of boost they would find these heads would FLEX A LOT. To Stop that heads gained studs, gained welded reinforcements, etc. Problem couldn't be fixed.

I talked to a guy who drag raced a Beetle with a built T4 engine. Don't remember his name, but he ran stock based heads for several years. He would have to re-lash the valves after every run and pull the heads off every weekend to make sure they will OK. He switched to Pauter heads and he could run the whole weekend without making changes or even removing the valve covers.

Those heads need to be flow tested and checked for integrity. Once they are fixed and signed off with a clean bill of health, slap them on a 10:1 engine and let her rip. Could be a pretty sweet street engine for someone, but its not worth trying to boost a Type 4 with stock based parts. They aren't strong enough. The Germans couldn't even be bothered to add the proper number of bearings to support the crank.
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Tdskip
post Mar 26 2020, 10:31 AM
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Just tried to measure stroke by measuring the total distance the connecting rod moves during a revolution and it looks like 82.5mm. I used a tape measure so I don't view this as super precise but more indicative.

That looks about right for a 2.3L build?

Good morning and thanks in advance for the thoughts and experience.
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Tdskip
post Mar 26 2020, 10:56 AM
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Holy cow - I may have done this wrong but if I take my measured bore and stroke and assume a safe deck height this thing calculates out to be a 2.7L engine.

Attached Image
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jd74914
post Mar 26 2020, 12:28 PM
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Deck height doesn't matter for engine size-it's swept distance so just bore*bore*PI/4*stroke. 82 mm is a standard stroker crank so that's probably correct. So you do have a 2.7L. (IMG:style_emoticons/default/smile.gif)
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Tdskip
post Mar 26 2020, 12:38 PM
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QUOTE(jd74914 @ Mar 26 2020, 01:28 PM) *

Deck height doesn't matter for engine size-it's swept distance so just bore*bore*PI/4*stroke. 82 mm is a standard stroker crank so that's probably correct. So you do have a 2.7L. (IMG:style_emoticons/default/smile.gif)


Holy cow. I thought that required 6 cylinders (IMG:style_emoticons/default/evilgrin.gif)

Thanks @jd74914

That explains the front mounted oil cooler.
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ClayPerrine
post Mar 26 2020, 12:52 PM
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QUOTE(Tdskip @ Mar 26 2020, 01:38 PM) *

Holy cow. I thought that required 6 cylinders (IMG:style_emoticons/default/evilgrin.gif)

Thanks @jd74914

That explains the front mounted oil cooler.


It doesn't require 6 cylinders, but it sometimes makes for a fragile engine.
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Tdskip
post Mar 26 2020, 03:20 PM
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QUOTE(ClayPerrine @ Mar 26 2020, 01:52 PM) *

It doesn't require 6 cylinders, but it sometimes makes for a fragile engine.


@ClayPerrine - thanks for the response.

This car has a front mounted oil cooler that is set up just like a 914/6 would, think that is enough to keep it cool or are the piston/jugs retaining heat the blocking issue (generally) on something this size?
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Tdskip
post Mar 28 2020, 09:51 AM
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Good morning gentlemen-should I finish tearing this down and split the case? Because of the oil pressure being low the case is going to have to be split if it’s going to be rebuilt, so what I’m really asking is should I have a machine shop to that or just carefully do it myself and bag and tag everything?
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sixnotfour
post Mar 28 2020, 10:04 AM
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Blow it up, Bag and Tag....lets see it naked...just make sure you find all the 8mm nuts..

then trade it for a stock 2.0
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barefoot
post Mar 28 2020, 12:54 PM
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QUOTE(Tdskip @ Mar 28 2020, 11:51 AM) *

Good morning gentlemen-should I finish tearing this down and split the case? Because of the oil pressure being low the case is going to have to be split if it’s going to be rebuilt, so what I’m really asking is should I have a machine shop to that or just carefully do it myself and bag and tag everything?



I assume you're savy on tearing it apart. Check the main bearings to see if they're a very tight fit into the journals, If not you'll need a line boring job done and oversize bearings
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Tdskip
post Mar 28 2020, 07:25 PM
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QUOTE(sixnotfour @ Mar 28 2020, 11:04 AM) *

Blow it up, Bag and Tag....lets see it naked...just make sure you find all the 8mm nuts..

then trade it for a stock 2.0


This is probably great advice but I'm itching to try it and save it... Right now however I'm kind of excited to just take it apart as part of learning how it was put together.

Hope all is well in Utah.
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Tdskip
post Mar 28 2020, 07:26 PM
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QUOTE(barefoot @ Mar 28 2020, 01:54 PM) *

QUOTE(Tdskip @ Mar 28 2020, 11:51 AM) *

Good morning gentlemen-should I finish tearing this down and split the case? Because of the oil pressure being low the case is going to have to be split if it’s going to be rebuilt, so what I’m really asking is should I have a machine shop to that or just carefully do it myself and bag and tag everything?



I assume you're savy on tearing it apart. Check the main bearings to see if they're a very tight fit into the journals, If not you'll need a line boring job done and oversize bearings


Thanks @barefoot . Will continue to give updates on what I find and (might be a while) let you know what the machine shop eventually says.

Hope you are doing well.
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Mark Henry
post Mar 28 2020, 08:09 PM
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QUOTE(Tdskip @ Mar 19 2020, 08:53 AM) *

QUOTE(Mark Henry @ Mar 19 2020, 05:54 AM) *

Hard to tell with the grime in the pic, are the cylinders biral or nickasil?
Inside cylinder, hard magnetic pull is biral, but very slight magnetic pull is nikasil.


Good morning Mark - thanks for the expertise.

I got a hard magnetic pull, I tested with one of those dropped bolt magnetic wands and it firmly attached with strong pull.

Biral cylinders, aluminum cylinder with an iron sleeve.

QUOTE(Tdskip @ Mar 22 2020, 01:11 PM) *

Anyone familiar with these wrist pins?

Happy Sunday all.



Teflon buttons, common with VW Type 1 performance and many other engines. Not a fan of them, I'd rather have clips.

I don't recognize the rods, I hope it's not a VW rabbit rod crank, but I don't think it is. In the 80's builders tried to use the smaller journal rabbit job to clear the cam on long strokes. Problem is the smaller rod journals makes the crank too weak.
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Tdskip
post Mar 28 2020, 08:19 PM
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@Mark Henry - thanks for the info.

I'll keep going, carefully, and document tearing the engine down. It's been fun learning and doing the archeology as I go.

Wish I could have seen this thing actually running back in the day!
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914Toy
post Mar 28 2020, 08:47 PM
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Rand
post Mar 30 2020, 03:28 AM
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QUOTE(poorsche914 @ Mar 25 2020, 08:04 AM) *

QUOTE(Rand @ Mar 25 2020, 10:59 AM) *
Fix the real problem: Teach the poster which side of his phone is up.

(IMG:style_emoticons/default/WTF.gif) It's the forum programming... not the photographer or camera.
Click on the image and it will enlarge AND be properly rotated.

chuckle.
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Rand
post Mar 30 2020, 03:31 AM
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QUOTE(Rand @ Mar 30 2020, 01:28 AM) *

QUOTE(poorsche914 @ Mar 25 2020, 08:04 AM) *

QUOTE(Rand @ Mar 25 2020, 10:59 AM) *
Fix the real problem: Teach the poster which side of his phone is up.

(IMG:style_emoticons/default/WTF.gif) It's the forum programming... not the photographer or camera.
Click on the image and it will enlarge AND be properly rotated.

chuckle.

Or you could teach him which side of the camera is up. He surely got it until technology happened.
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