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Meet the Bergmann Bomb!
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modok
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PostPosted: Sun Aug 14, 2022 2:36 pm    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

I would have to see the rods to determine what is wrong, but I'm suspecting this bolt problem with the rods was caused by the same thing that got every other threaded fastnener in this thing..... stuck stripped and rounded off.

Dirty and dry and that's what your gonna get.
Clean and with the right sauce then there are no problems.

My left thumb is swelled up now because people don't know how to use bolts.
Bolt broke off inside dana 40 front axle housing. Flipped a coin on weather to set it up in the mill or carve it out freehand. Tails. Carved it out just fine with a carbide burr.
But the threads were about 35% damaged...because it had SAND jammed in there. So drilling it out for the helicoil I went for a ride a few times and my thumb bent the wrong way.
Maybe should have used a negative rake drill bit.

What I'm saying is the stupider the last guy was then the smarter you will need to be to salvage the situation. It's proportional.

HOPEFULLY someday you will build engines powerful enough and long lasting enough to need a steel pulley.
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W1K1
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PostPosted: Mon Aug 15, 2022 9:50 am    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

Quote:
The largest problem that I see is that if you have it on an engine that can go from idle to 7 grand in a split second the pulleys do not last long unless they have a steel hub.


you can put a CR/SKF speedi sleeve on the pulley hub for the seal to run on.
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Chickensoup
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PostPosted: Mon Aug 15, 2022 10:50 am    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

W1K1 wrote:
Quote:
The largest problem that I see is that if you have it on an engine that can go from idle to 7 grand in a split second the pulleys do not last long unless they have a steel hub.


you can put a CR/SKF speedi sleeve on the pulley hub for the seal to run on.


exactly. I did this on the crank journal for a crank gear on a TDI. Many miles later, and not a drop of oil has left the BSM cover.

Warning: Those speedi repair pieces, have a lip, which you may have to remove. they are also like $70 dollars. If you didnt balance the ENTIRE rotating assembly (with pulley), you may as well just buy a new one.
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Chickensoup
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PostPosted: Mon Aug 15, 2022 10:54 am    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

For example,

This
Image may have been reduced in size. Click image to view fullscreen.


Fixed this
Image may have been reduced in size. Click image to view fullscreen.


I had to remove the lip, and trim the length on the lathe. If you have to do this, put the sleeve over a socket of the appropriate size. make one if you have to. I trimmed a socket to size, slipped the sleeve over, and parted to length.

Your welcome
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-'85 c10 5.3 LS, 222 cam, long tubes, x pipe, 3 inch spin tech's
-'05 B5.5 TDI Wagon 17in sport rims ;EGR + BSM + ASV Delete, Stage-2 Tune, straight pipe
'65 Tourist Delivery Build
'66 RIP
'69 RIP
Hosea 4:6 "My people are destroyed for lack of knowledge"
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RCP Phx
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PostPosted: Mon Aug 15, 2022 7:14 pm    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

Clatter wrote:
Ya i went looking for a bargain and found one.
Rod caps are aligned with marks.
Thinking we just got some normal type 1 China joy.
Type 1.. Like diabetes..
Such a bunch of junk! Shocked


If you were smart, you would just box all that up and sell it at the next Bug-O-Rama and just start fresh!
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Clatter
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PostPosted: Tue Aug 16, 2022 2:08 pm    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

RCP Phx wrote:

If you were smart, you would just box all that up and sell it at the next Bug-O-Rama and just start fresh!


oprn wrote:

The Lord hates a coward! Very Happy Very Happy


Laughing Laughing Laughing
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esde
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PostPosted: Tue Aug 16, 2022 6:50 pm    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

when Bernie Bergman sweeps the shop floor to build a motor......
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Bent cranks are silent but gather no moss. I mean, ah, something like that.
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Clatter
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PostPosted: Wed Aug 17, 2022 6:30 pm    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

In IT we call this "throw hardware at the problem"...

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67rustavenger Premium Member
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PostPosted: Wed Aug 17, 2022 7:51 pm    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

Clatter wrote:
In IT we call this "throw hardware at the problem"...

Image may have been reduced in size. Click image to view fullscreen.

Way to get at solving the problem.

What cylinders and who's pistons?

I've been trying to find a set of 94 cylinders to fit my case and heads, formerly 2180. 92 TW cylinders.
The pistons are with DPR currently. Confused
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Clatter
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PostPosted: Wed Aug 17, 2022 9:04 pm    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

Heh!
Look who’s been noticing turbo pistons lately.. Wink

I got a screaming deal on these bare from a friend.
https://www.csp-shop.com/en/engine/pistons-csp-forged-198-073-19482c-31348c.html

Added Hastings rings and J&E pins…

Cylinders are just regular AA.
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67rustavenger Premium Member
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PostPosted: Wed Aug 17, 2022 9:58 pm    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

Clatter wrote:
Heh!
Look who’s been noticing turbo pistons lately.. Wink

I got a screaming deal on these bare from a friend.
https://www.csp-shop.com/en/engine/pistons-csp-forged-198-073-19482c-31348c.html

Added Hastings rings and J&E pins…

Cylinders are just regular AA.

Your pistons must be an older set of CSP. The newest have the CSP logo printed on the tops.
Mine are JE b height. Grant rings.

So, you're using the AA 94 thin wall?

I see you bought a Stage II PP. Are you gonna run it? Or try the Stage I first and see if it slips?

I have been following this train wreck, Er forensic adventure, since you bought that thing.
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I have learned over the years.
Cheap parts are gonna disappoint you.
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VWporscheGT3
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PostPosted: Thu Aug 18, 2022 7:17 am    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

Very Happy Shiny parts... oh yeah... love me some shiny parts. Cool
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If you have any questions about Forged ICON 4032 VW pistons just shoot me a line.
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Clatter
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PostPosted: Thu Aug 18, 2022 7:58 am    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

Ah, yeah.. Take and feel the cool metal against my cheek.. Cool

Cylinders are just regular ‘ol 94s.

A Stage 1 and good dual-friction disc might have made more sense,
But,
This motor should theoretically drive through that setup.
So,
Since it all has to be balanced as a unit,
It makes sense to have a Stage 2 balanced up.
If it slips using the organic disc,
I can add a dual-friction without having to take the entire lower end in for a re-balance.
Plus,
The fancy disc costs more than a plate.
And my cable tube is already well reinforced in the tunnel.

Those pistons are indeed the ones.
They didn’t get logo’ed for whatever reason.
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mark tucker
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PostPosted: Thu Aug 18, 2022 9:59 am    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

shit can the hastings rings and get good ones.
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oprn
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PostPosted: Thu Aug 18, 2022 10:04 am    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

mark tucker wrote:
shit can the hastings rings and get good ones.


Why? Do they make a bigger BOOM??!! (Bergmann Bomb) Wink
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VWporscheGT3
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PostPosted: Thu Aug 18, 2022 10:06 am    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

mark tucker wrote:
shit can the hastings rings and get good ones.


Mark, love ya man, but i disagree. I would use hastings every day of the week before using the grant, and if we are all being honest Hastings supplies almost every one of the ring companies. Obviously total seal does a good amount in house but I can tell you they are not making all of their rings. I have never had a problem with Hastings performance wise... although i have had issue with the wrong parts being in the box years ago.
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If you have any questions about Forged ICON 4032 VW pistons just shoot me a line.
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Clatter
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PostPosted: Tue Sep 27, 2022 3:12 pm    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

So, i been chipping away at the 'ol Bomb here...

Ordered an AA VW-journal 82-stroke 4340 crank, but accidentally pulled-down the number for a 74... Brick wall
We'll see how long they take to switch me out.
Shoulda just ordered an 82 and kept the 74 to sell.
Like many places, if there's not some money in it for them, they're not going to be in any kind of hurry.. Rolling Eyes

My main man Jim kissed off the deck for me. Cool
I just clearanced the sides of the inserts with a disc.
This after running them all the way home with a bunch of red LocTite..
Image may have been reduced in size. Click image to view fullscreen.


Noticed he took just a minimum;
Says it cleaned up in about .003".
Image may have been reduced in size. Click image to view fullscreen.



Measuring how far off-center the main bore is from the parting line,
There's between .0025 and .004" depending upon which end of the case.
Image may have been reduced in size. Click image to view fullscreen.



When measuring how far from the deck to the parting line,
There isn't enough difference for me to be able to measure.
And it does follow the main bore crookedness to within a thou or two.
Jim says he won't set a stop and use it for both sides of a case when decking.
At least not with these Brazil cases - because of the main bore being crooked.
He says he'll measure how much it takes to clean up one side, then do the other the same amount after touching off.
If the factory case was done right he'll follow it,
But if it was wrong then the wrong will stay.
He's done enough of them that were right that he'll do it that way.
Interesting, eh?
Far as i can measure here with the bare case I'm good.
Once the cylinders and all go on we'll know for sure.
Just waiting on a crank... Anxious

Bunch of time to be spent filing high spots at the parting line.
Image may have been reduced in size. Click image to view fullscreen.

Image may have been reduced in size. Click image to view fullscreen.


Beat-ass old .060 case! Evil or Very Mad

Had to Heli-Coil the 'first one you tighten' stud.
Image may have been reduced in size. Click image to view fullscreen.


Got the cam bearings and all in, cam gear, etc.
We'll run it straight up for degreeing in for now.
Maybe an FK 45 should be advanced or retarded for turbo use? Think

Nice straight cam bores and perfect .001 cam bearings.
Turns like melted butter.
Nice to have one part right at least.
*touches wood*
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Dan Ruddock
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PostPosted: Tue Sep 27, 2022 4:48 pm    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

The three long 8mm case half studs, I torque them 3 pounds less than the rest. The extra magnesium under the stud expands when hot more than the 8mm stud stretches. Dan
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74 Thing
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PostPosted: Tue Sep 27, 2022 6:01 pm    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

Who is Jim, your machinist?
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Clatter
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PostPosted: Tue Sep 27, 2022 6:21 pm    Post subject: Re: Meet the Bergmann Bomb! Reply with quote

74 Thing wrote:
Who is Jim, your machinist?


Yes.
Or,
Formerly.

He retired,
But i can still sometimes talk him into working his magic..
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