Pushrods/valves SEEM dead / engine build

[NachoCar]

deleted

[NachoCar]

Guess I need to work on my clutch adjusting skills Geez

[NachoCar]

New Line bore on original case and new AL case purchased for a backup longblock.

Bore was done by Keith's Auto in WV if anyone is familiar. Interestingly he did NOT bore to next size up, just cleaned bore up and did not cut thrust?!?!? I'll get pics of thrust area tonight.

Check out cam saddle of middle cam. I thought there was dirt or debris and went to wipe it off. End broke off which got me looking closer. FRICKEN crack in middle.

This is almost getting comical at this point. This happened after second mockup with crank and camshaft in place. Cam bearings were fine afterwards so thinking this shows it was not damage done by me torqueing down together with something addition in middle cam bearing area, causing the damages. Hope manufacturer agrees.

[NachoCar]

Bearing was stuck on crank. I used a large screw driver with a tap here and a tap there to dislodge.

Started looking for my notes, but I'm not the most organized guy.

If memory serves me, #1 bearing was a hair loose BUT #4 was the biggest issue and my machinist insisted that bearing was off and I needed scrape the ID to achieve enough clearance. I was skeptical but it lasted longer than #1.

Thanks for feedback, I'll update with specs when I find.

[raydog]

Check your oil passages. I am seeing a ton of red silicone on that case. I agree, it looks as if that bearing was a problem from day one. Why the pry marks on the bearing flanges?
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Come on, It's not rocket science. KISS

[MuzzcoVW]

[VW_Jimbo]

That bearing was pounded on. Either too tight or too loose. What were the measurements of the crank and bearing at full crush?

Case does not look like it was machined, at all. What are the diameters of the bearing openings measuring?
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Jimbo

There is never enough time to do it right the first time, but all the time necessary the second time!

[NachoCar]

No machinist didn't cut new thrust and sure hope to avoid this crap again so I guess a little waiting is ok.

Maybe third times a charm.

[Millionmph]

[NachoCar]

Thanks!

Another align boring... I HATE waiting for machine work. But if it needs it, it needs it.

[Millionmph]

see the photo of the block where the bearing sits? see the numbers from the bearing stamped in the block? case needs align boring, trying to reassemble that is going to do same thing over and over... the thrust area looks pounded too theres no real definition left there

[NachoCar]

Phil....please look at pics as I honestly think the cause was inadequate oil at #1 bearing. Otherwise wouldn't there be a mark on OD of bearing where pin crushed into it? That's what happened a couple times before I got the case halfs together and torqued down to spec. But I admit I don't know shit, Lol.

I'm worried it was inadequate oil to #1 bearing. Whil I had my crank polished, I could not get it reground because the ONE machine shop within hours from me kept passing my job up for more lucrative Porshe projects. After 3 months I went and picked the crank and case up.

A buddy mentioned the protrusion of the bearing pin. I really think it was ok but it was just a tiny itsy bit lower than the others.

Opinions?

See hairline crack??

Other side to show no dents from misaligned pin.

ANy guidance on what cause was would be helpful.

Thanks Guys

[KTPhil]

Thanks for hanging in there and for sharing pics. We all learn from this. I've crushed bearings on pins before, despite thinking I was careful.

[NachoCar]

#4 bearing was not the issue. It spun #1. pics tomorrow.

[NachoCar]

Disaster.

Just like the first engine ........ran great while sitting......after driving maybe a couple thousand yards up and down my street.....engine died and would not crank.

Pushed her home and noticed crank was slipping on alt belt when I was trying to turn over by hand. Just now took spark plugs out and rocker arms off and STILL no movement when using breaker bar on alt nut.

Devastated but will have torn down by this weekend to see what the deal is. I'm betting spun #4 bearing. Machinist felt bearing was out of spec and that hand shaving the ID was the solution. Doubted my abilities as a total engine novice and I fear I was right. Just a kick in the nuts.

I enjoy the process and I am trying to look at this as a learning experience but a little frustrating to say the least. I WANT TO DRIVE THIS CAR!!! Been 10 years working on it.

stay tuned for pics.

[NachoCar]

Thanks Guys! I had not thought about too much muscle but I can imagine it fatigue-ing the metal. I'll torque to spec this time.

Went ahead and ordered the CB Perf fan hardware kit to be sure and get the proper shims.

Now to get that bottom left bolt back in during installation. Always fun.

[scrivyscriv]

Probably just need to shim the fan gap. It will do that if it’s not shimmed to spec. Might also need to manually adjust the forward side of the fan shroud where the fan sits, it rubs there sometimes.
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Robert in Memphis
Dünkelgrügen 1967 Java Green bug thread
Engine rebuild thread
If you're ever in the Memphis area, you are welcome to stop by for advice and help.

[VW_Jimbo]

[NachoCar]

Well......she is running better than ever. But still stationary.

I have wired the basics myself, which has been a learning process. Had the power input to pertronix HV coil (Suggested by Alstrup) going thru a distribution block but it SEEMS to fire so much better straight off the battery.


Noticed a grinding/scraping sound coming from the fan after shutdown. This is the second time the alt shaft has hollowed out a fan hole, at least I assume this is the same issue as it has happened once before. What gives? I try not to buy cheap shit so wouldn't think it's the metal the fan is made of. Current is a scat welded/balanced, over $100

Such a pain getting the 4 bolts out that keep the fan in place on the shroud....

Any suggestions on which fan to buy ? I'm thinking CB's 2171.

[marknmelcom]