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Messages - Thumperbird

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16
Yes it is.  Crap, how dumb of me, glad I asked, must have forgotten, had them opposite of course, oh well, more practice with dis-assembly and assembly.  Thanks Brent.

17
I think I know the answer to this but thought I would check.
Does rod bearing orientation matter in terms of the larger bearing chamfer with respect to large radius side of rod/crank or towards rod center?
 I don't think I paid attention to this when I first assembled engine a few years ago.  I noticed 6 bearings had a larger chamfer on the side closest to the registration tab and 10 were the other way on the removed set from the old days.  The new set of bearings appears to be 8 larger chamfers closest to registration key and 8 on opposite side, so technically I can install them as top and bottom sets so to speak with larger radius towards crank in all cases or towards center.  Wondering it if really matters though, I have plenty of side play either way so no interefence sideways.  Preference for oiling or ?
Just curious.  Thanks.

18
FE Technical Forum / Re: Morel Lifter Flush
« on: March 13, 2022, 08:04:50 AM »
No new noise that I know of before shutting down, I've always had 1 that ticked some for a minute or two after a hard run, that is making the call a bit more difficult.  New has risks as well so executive decision time I guess.

19
FE Technical Forum / Morel Lifter Flush
« on: March 12, 2022, 01:57:31 PM »
Since I had trash in my oil from my crank thrust bearing wear issue I am wondering if there is a way to flush Morel lifters?
I don't think you can take them apart as the pushrod seat will not clear the rivet.

I can rotate the seat pretty easily but takes a lot of force to compress, do not have a great way to test ease of and free travel so to speak to make sure they are not sticky for some reason.

Thanks.

20
FE Technical Forum / Re: Fe in a 36 Ford
« on: March 08, 2022, 04:55:17 PM »
I would think any healthy FE would twist up any 30/40's frame?
Are they stronger than I think or modified or no traction or ?

21
FE Technical Forum / Re: Ready for some dyno time
« on: March 08, 2022, 04:52:44 PM »
What am I doing wrong?
I'm logged in and do not see any paper clips or images, links are there.

22
Let's talk about this a bit more for fun.
During normal operation does the distributor gear "walk up" the cam gear thereby utilizing and loading the thrush washer captured between distributer body and that pinned collar?
If so, then wondering why there is a spec on shaft axial play, why would it matter?

Or does the gear find a path of least resistance so to speak and the 3.045/3.05 zone puts it dead center on the cam gear and it stays there? No thrust involved.
One or the other, both at play some how, just curious.

23
FE Technical Forum / Re: Garbage in Oil
« on: February 07, 2022, 12:55:10 PM »
Not having much if any experience in evaluating bearing and cylinder surfaces what do you all think about what you see here?
There are some minor scratches on cylinder walls, there is only one (shown in picture) where I can barely catch the edge with a finger nail, looks worse in image than it is I think.
All others are not detectable by hand, Can I just clean this all up and run with new bearings or ?
Cam bearings look like new to me, rods also look good to me but will replace rods and mains for good measure.
I know it is hard to tell in images but everything is super smooth save that one scratch, while there is obviously something there on most surfaces I can not feel it in all other cases.
Thanks again for all of the help, will try and post rod bearing pictures tonight.
By the way engine has ~3k miles on it, some of them pretty hard.

24
FE Technical Forum / Re: Garbage in Oil
« on: February 06, 2022, 10:36:29 AM »
Jay thanks for the local lead on crank repair, much appreciated!

Yes I used the sheet metal like plate between engine and trans..
Some research suggests the "flexplate" actually does flex when the converter pushes forward absorbing some, maybe a lot? of the thrust load if of course it is mounted by the ears, so with flexplate bolts bottomed out in the center of converter this behavior is 100% gone.  My guess is my trans pressure is high as well so that does not help matters as I suspect a higher than normal constant thrust load.  I installed an external trans cooler in series with radiator cooler 2 years ago, sounds like that can mess with trans pressure as well.

It looks the Performance Automatic flex plate is a little thicker than stock and of course not a stock converter anyways so with stock doubler ring it all adds up the the interference.

I am thinking of running without the doubler, maybe some hardened steel washers that are more thin than doubler and might take a little off the bolt heads to get say 1/8" of clearance at flexplate bolt head to converter face.  Will probaly need shorter bolts anyways if I use more thin washers instead of doubler.  Then of course make sure converter snout is free and clear within crank pilot for at least that 1/8".

From there more care setting it up to make sure converter is sitting .125" out from bottomed out in trans and space accordingly after that.

Can't believe I missed this and still wish I had more concrete info. on the mechanics at play here.

Thanks everyone.


25
FE Technical Forum / Re: Garbage in Oil
« on: February 05, 2022, 03:22:55 PM »
Ring is on trans side, you are looking at flywheel and ring from trans side so not a spacer between crank and flywheel, just a doubler but that doubling pushes bolts farther back and they contact center of converter.  The indent if you will in flex plate is towards trans as well which I think is proper.  Aftermarket flex plate, do not recall manuf..

Fyi, this is a C6 in a 65, 65's normally had green dot trans, 66 tbirds did have c6 though, so new trans, converter, and flex plate combination tied to scat crank.

If converter is bolted hard to flywheel anyways, just makes contact in different area, looking to understand dynamics of the failure, this setup was just worse case for being able to handle any balloning or something else or ?

Is this where a flex plate gets its name? converter pushes on outer diameter of plate, plate absorbs some of that by deflecting and less load on crank then or ?

Sorry for miilion questions, trying to learn and not make same mistake twice.

Thanks.

26
FE Technical Forum / Re: Garbage in Oil
« on: February 05, 2022, 01:20:44 PM »
More images

27
FE Technical Forum / Re: Garbage in Oil
« on: February 05, 2022, 01:09:12 PM »
The fun begins.  Pictures will tell most of the story but still need some help on root cause.
Trans side of main thrust bearing is toast, worn into what I suspect is a steel backing material.
This looks to be the source of that shaved off piece of steel, see image for similar piece of flash still stuck to bearing.
Unfortunately there is a deep groove worn into that side of crank thrust surface.  Is this crank toast?
No evidence of flywheel bolts touching back side of engine but torque converter to flywheel interface may be where my problem lies.  It looks like flywheel bolt heads bottomed out on center part of converter so there was no contact between flywheel and converter on the raised ring or at the outer ears of converter.  This is where I need the collective experience here to guide me.  I feel like the center of the converter is most prone to ballooning and expansion so since I did not have any clearance there even thoough I had overall converter movement/clearance installed, say .1"  that is not enough in this condition?  Wondering if I was not supposed to use the doubler ring when installing afttermarket flywheel?  The doubler thickness is surely enough to have caused flywheel bolt heads to protrude enough on converter side to bottom out in center before perimeter was seated.  Have not check all bearings yet, obviously the motor had trash in it, what I can see of cylinder walls looks good so far, main bearing of course shows some wear as that is where teh concentration of debris would have been, more to come on that front.  What do you all think?

28
Non-FE Discussion Forum / Re: Gasoline proof sealant
« on: February 02, 2022, 10:38:43 AM »
Aircraft fuel tank sealant, spendy but bulletproof.
PR-1422

29
FE Technical Forum / Re: Garbage in Oil
« on: January 30, 2022, 01:20:43 PM »
I know I was aware of flywheel bolt length when I assembled, can't get eyes on that until I seperate trans..
(only motor is coming out at this point and have not gotten there yet)

I did try and measure torque convertor clearance, rough estimate is .160" of convertor travel before it bottoms out in trans when crank is pulled all the way forward and .1" of travel when crank is all the way back, this is indicaiting roughly a 60/70 thou. crank runout, hard to get a great # while in car.  Of course no way to know which side is worn yet so not sure what nominal crank posiiton is wrt the convertor clearance.

In the worst case crank all the way back scenario is that .1" enough torque convertor clearance?  I am guessing I do run a lot of trans pressure, harding shifting C6 from Broader, have made probably 50 to 75 informal 1/8 miles with it, redlinging at ~5600 to 6000 rpm.

For now, is there anything else I can/should observe/measure before I seperate motor from trans?
Maybe I'll try and lift motor just enough to get pan off while still in vehicle so I can get a bottom side view.

Thanks.


30
FE Technical Forum / Re: Garbage in Oil
« on: January 29, 2022, 07:26:23 PM »
Scat cast I think was not super spendy.  This is a 445 with H beam rods, Federal Mogul bearings.

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