Meet the Bergmann Bomb!

[modok]

[Clatter]

[Clatter]

[Clatter]

The reason the non-steel-backed KS bearings fit without a gap is because they expand at a similar rate to the case?


_________________
Bus Motor Build

What’s That Noise?!?

[modok]

BINGO, you got it.

[nogoodwithusernames]

That seems SO counter intuitive. Makes sense when you think of it that way but it feels so wrong
_________________
71 Squareback, 1.7l T4 w/ crank trigger fuel and spark
(Conversion thread https://www.thesamba.com/vw/forum/viewtopic.php?t=732508&highlight= or https://shoptalkforums.com/viewtopic.php?f=1&t=151375&sid=f0542d44a322d290c29d6609fac7f215 )
74 914, 2.0L w/ D-Jet

-Derek

[Clatter]

I know, right?

Keep thinking of the oil outside the bearing spraying everywhere through the gap between the case halves…
_________________
Bus Motor Build

What’s That Noise?!?

[nogoodwithusernames]

Well to be fair, on startup the oil will be cold and thick and you usually have high pressure anyways so bleeding some of that off as everything warms up might be a benefit? In a weird roundabout sort of way. Maybe I'm just trying to help ya feel better about it so we can watch this thing explode all the sooner
_________________
71 Squareback, 1.7l T4 w/ crank trigger fuel and spark
(Conversion thread https://www.thesamba.com/vw/forum/viewtopic.php?t=732508&highlight= or https://shoptalkforums.com/viewtopic.php?f=1&t=151375&sid=f0542d44a322d290c29d6609fac7f215 )
74 914, 2.0L w/ D-Jet

-Derek

[modok]

.004x.3 gap......less than one lifter. Drip or perhaps a slow dribble.

But it is weird. I would not think it would even work, If I didn't already know it works.

[Clatter]

Well, until i can rip it clear back down to a bare case and order some more bearings…

Figured it was a good use of an entire day to get the head studs and cylinder shims worked out.

Crazy what they did with those shims..!
They were only notched for 8mm studs, so just crammed on.
Plus some slipped and smashed down anyways, so chewed and burred.
Not to mention two .055”, one .065”, one .070”..
Took hours of clearancing and hammering and sanding to get them to fit.
All just to get a good mock-up and order some decent shims.

I’ll have some different shims on-hand for future mock-ups i guess.
Ordered shims for either 8:1 or 8.2:1 CR. Not sure how well I’ll do at tuning.

Also ran the studs clear home for length trimming.
Once there, they got blue lock-tite’ed into the inserts.
Also decided enough was enough struggling with the two top center studs.

Now that the studs are where they go,
If i can get the crank turning smoothly,
We can glue this thing together.

Until then,
The blue glue is drying,
And i can make vroom noises!

_________________
Bus Motor Build

What’s That Noise?!?

[67rustavenger]

Hah!
Weare at point.
Vroom noises!

_________________
I have learned over the years.
Cheap parts are gonna disappoint you.
Buy Once, Cry Once!

There's never enough time to do it right the first time. But there's always enough time to do it thrice.
GFY's Xevin and VW_Jimbo!

[Clatter]

Couple days off - driving around looking at colleges!

Did some cleanup while waiting on shims and an unmonkeyed set of main bearings to arrive.

Threw some stuff in the trash!!

Drug the tin out of the attic for a checkout and mockup.
Tin is all China, Brazil alternator seems OK, and we got a welded fan here.
Oh,
But wait.
The fan nut is a bit loose..

Can't catch a break on this POS..
Was thinking how the alternator had a cool dark tint to it,
But getting it apart,
er,
That's just grime.
It's the same as any other alternator, it's just that dirty.

Nice washer on the hold-down strap, eh?
Good way to cut a plug wire, or your hand, or..

Pretty amazing how ALL of a motor can be shitty, eh?
You would think that some random parts-slapper-together clown would get it right at least occasionally.
Like, a coin can't land on tails every time, right?

Guess when someone does shitty work, they do shitty work;
They don't become a different person sometimes...

Tiger at A1 sure does nice work.
This header fits a treat!
Too bad some dumbass got ahold of it.
Here's why there's a hole in the pipe.
Dumbass extended the wastegate flange wrong.

Same dumbass probably welded the T4 flange onto the T3 header here.
Notice no clearance/thought so bolts fit all crooked/caddy-wompus.
Might have to shave down bolt heads?

Started doing some Cardboard Aided Design.
Turbo seems so heavy to hang from just exhaust tubing.
Even though it survived like that before... Or did it..?

Bus bar hanger bolts seem good for this...

Can't be flat, though; gonna have to put some cant into it.

Also thinking about O2 sensor locations.
After the turbo on my dump pipe seems primed to get a bunch of fresh air contamination/lean readings.
But before the turbo is a no-no right?

What you guys think?
Should i build that hanger bracket?
Where to put an O2 sensor bung?



Anyways,
Got my last batch of junk together to get tanked.

Gotta be glad for any success we can get!
_________________
Bus Motor Build

What’s That Noise?!?

[madmike]

O2 sensor goes after turbo
That Dump pipe on the turbo drain, goes on the Waste Gate
_________________
'Black Ice'Drag Buggy 'Turbo'
Rail Buggy 1915 turbo
76 Drag/Street bug 2180cc 'Turbo' 11:85 @113 mph"If I go any faster I'll burn up the Hamster" ,gets 28 mpg. also 10/09/22 11.90 @115 mph
"If I'm ever on Life Support,UNPLUG Me, Then Plug me back In see if that Works"

[VWporscheGT3]

Dude I turn away from the Samba for what feels like a week (in reality two) come back from PRI and suddenly we have a long block. lol awesome read , great progress bro!
_________________
Schnell, SCHNELL!

I like being wrong, Because, it is another opportunity to learn. If you stop learning from your mistakes than what is the point?

If you have any questions about Forged ICON 4032 VW pistons just shoot me a line.

[Clatter]

[VWporscheGT3]

[Clatter]

Unfuckerizing the exhaust...
Got wastegate setup so it won't bang itself a big hole in the pipe anymore.

T4 flange was a bit narrow.
Not enough meat to open clear up to size,
But at least i got a bunch of big blobby weld out of the way.

Checking out this other site,
I thought,
"Hey, i have one JUST like that!"
https://ace-engines.com/product/aircooled-vw-2387cc-turbo-engine/

Looks like they are OK with an O2 sensor in the base of a short dump pipe.
But what is the bung in the collector flange there for?
EGT?


CE heads have few fins just like my SE.
Maybe with the right tune they can live on the street after all.
_________________
Bus Motor Build

What’s That Noise?!?

[Janne71]

Hi
Did you get case tight together or did you have the play between?
Better with new bearings ?

//Jan



[ quote="Clatter"]Well, until i can rip it clear back down to a bare case and order some more bearings…

Figured it was a good use of an entire day to get the head studs and cylinder shims worked out.

Crazy what they did with those shims..!
They were only notched for 8mm studs, so just crammed on.
Plus some slipped and smashed down anyways, so chewed and burred.
Not to mention two .055”, one .065”, one .070”..
Took hours of clearancing and hammering and sanding to get them to fit.
All just to get a good mock-up and order some decent shims.

I’ll have some different shims on-hand for future mock-ups i guess.
Ordered shims for either 8:1 or 8.2:1 CR. Not sure how well I’ll do at tuning.

Also ran the studs clear home for length trimming.
Once there, they got blue lock-tite’ed into the inserts.
Also decided enough was enough struggling with the two top center studs.

Now that the studs are where they go,
If i can get the crank turning smoothly,
We can glue this thing together.

Until then,
The blue glue is drying,
And i can make vroom noises!

[/quote]

[67rustavenger]

[madmike]

I dout the xpurts could see it
_________________
'Black Ice'Drag Buggy 'Turbo'
Rail Buggy 1915 turbo
76 Drag/Street bug 2180cc 'Turbo' 11:85 @113 mph"If I go any faster I'll burn up the Hamster" ,gets 28 mpg. also 10/09/22 11.90 @115 mph
"If I'm ever on Life Support,UNPLUG Me, Then Plug me back In see if that Works"