Tech Q ?

Whats interesting is how detergent oil stops sludge..it actually holds the dirt in suspension. Modern oils provide all kinds of benefits...from the detergent effect to load and shear modifiers,that really benefits babbit bearings,modern oil can tolerate deviations in bearing clearances better..and handle load better,that thin film of oil is more stable..
 
hardtimes said:
I'm taking apart a model b diamond engine.
Have run into a 'strange' situation, that I haven't figured an answer for...yet.
Thot I'd ask here...early, in case someone has a helpful tip as to their thots.

This Texas guy sold a diamond B....as 'possibly' rebuilt.
Hey, it looked good with NEW paint ....that was puzzleing, as a guy would have to strip the b down to do such a good even paint job ?
Anyway, he did NOT provide any oil pressure testing orifice....that made me suspect of him. Without oil pressure assurance and with oil leak at front main...hm what's up ?

Ok, I pulled engine, took down pan and found a full THREE inches of sludge, to the extent...that it was covering oil pump half way up !! WTFudge ??

Pig in a pretty painted poke ??

So, took of pretty winfield 6;1 alum head. NO ridge ring..in any cylinder ??

Pistons...standard..hm ?

I did not take a compression test, but ran engine briefly till verified front main oil leak. NO smoking. Too rich fuel with excessive fuel not being burned..black plugs.

I'm stuck as to why ANYONE would bother to strip and engine to apply proper paint block/ pan, etc....and not remove pan for cursory inspection ??

Why no oil pressure and/or gauge ...to indicate 'remove pan and inspect' ?
Pump couldn't be putting out pressure...as it was !

And, how do you have 3 inches of sludge in engine with standard/no smoke pistons and no ridge rings ?

Still have to look further at bearings, etc.. Valves look ok/black on too rich fuel.

Kinda stumped on why so much sludge and engine still in condition it is in ?

Thots ... anyone ?
Click to expand...



Well, it obviously was getting oil where it was needed or the engine would be broken/scored/seized. Oil can form "channels" through the sludge so it still gets to the oil pump. Just clean everything up and inspect.
 
40 Deluxe said:
Well, it obviously was getting oil where it was needed or the engine would be broken/scored/seized. Oil can form "channels" through the sludge so it still gets to the oil pump. Just clean everything up and inspect.
Click to expand...

Thanks. Never heard of such oil ‘channels ‘.. hm ?
Well, there IS always more to the story, eh.
What I had not told.... This seller hadn't run the engine, in my opinion.
The evidence ?
Well I tried to start it...completely DEAD sulfated battery !
Put in live battery...backfired once.
Checked firing order...Wrong !
I then called to ask the guy Q... he says-I’m a machinist, not a mechanic !!
ALL this after I recd engine, before that he’d told me that it was rebuilt !!
When I told him and showed pictures of sludge... he claimed to be shocked !!
BTW... there was about a quart of dirty oil... on top of sludge !!
Took a big scraper to break thru and clean sludge. So no oil channels !
Removal of oil plug did no good, as one could imagine !! A lesson here for all
newbes and ‘non-mechanics’. That is- use detergent oil and perform PMs regularly.
 
How much did you pay for this engine? I only ask because either somebody lied..or somebody didn't do due diligence..I can understand neglecting diligence based on price,get a decent block cheap enough all the talk about what was done doesnt matter.

I've bought plenty of used engines,if I can't see the lower end I don't pay..imagine there should have been some kind of documentation or pictures showing the rebuild..
 
here is a shot at the tune up.

J
 

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Jack Shaft said:
How much did you pay for this engine? I only ask because either somebody lied..or somebody didn't do due diligence..I can understand neglecting diligence based on price,get a decent block cheap enough all the talk about what was done doesnt matter.

I've bought plenty of used engines,if I can't see the lower end I don't pay..imagine there should have been some kind of documentation or pictures showing the rebuild..
Click to expand...

Hey Jack,
Bought unseen, except for pictures.
I usually do as you say you do, hands/eyes on.
Have you bought from a Barn member ? Do you trust established Barners ? I do !
I also hav dealt with members here for decades ...without incident like this !
Sorry to say, I bought this from a HAMB member !!
Like said, I’ve dealt with HAMB guys for decades, with never a problem !
When I notified him of situation, and of my requested / suggested solution...He would not answer me back, respond... other than to say he was “shocked”... his only response.
I paid good amount of $ .... based on his word as a HAMB member. He had advertised it on this ( Ryan’s) domain. That , to me, gave creds to this guy !
Everyone is wrong at times...
I hope he feels good, having taken an old guy/fellow HAMB ! May he live forever.
 
Folks get real ugly when it comes to money. Have a friend who just passed, the nicest guy, he would give you the shirt off his back. He was in his 80"s when he asked a 'friend' of ours to build him a hot B engine.. they had machine work done, all nice parts...Hollywood Cragar head completely reworked, full pressure, all the trimmings. .once the 'friend' found out he was sick he halted all work, all the pieces are ready, probably 10 k in.. when his widow asked about the engine he gave her a junk A block he got for fifty bucks, he said that's all he was given.. made me sick, and like your story it speaks a lot about a percentage of club members and fellow enthusiasts
 
Been there, done that. Burned from Craigslist, HAMB and swapmeet...
Luckily not much money, caveat emptor, I handed over the cash..

But, I have also been really lucky with most dealings, not everyone is a crook.

The line I like the best is, "this has been magnefluxed". My next question is "did it pass"?
You would not believe the stares/looks I get with that question. In most cases, no it did not.

Rick, no, that is not Brierley's head, it was a billet I made designed on the flow bench.
And yes, that was a water brake dyno, driveshaft flange broke later that day.

J
 
I'm confused, in post #29 you say: "I paid good amount of $ ...."',
then in post #31 you say: "Luckily not much money".

?????
 
Thanks John,
I’d say that your name should be on a flathead... Head, that can power any engine/car to 127 MPH , WOW !
Put me on list... when available !

Regarding buying/selling stuff.
I’ve lived by the tenant , when selling, that
If you dont like what you bought from me... Ill buy it back... and/ or agree to where both are satisfied.
NEVER a problem encountered this approach to our hobby !

This guy does not deserve privilege to sell stuff on HAMB !
As he has no integrity/honor and taints that great site and members !
Yes, I paid a lot more $ than what value I received. He had of room $ to make this right...but hung up instead.
KARMA...will visit him , no doubt !
 
You're right, I am confused, I should have looked at the poster's names.

Lesson learned.
 
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hardtimes said:
Thanks John,
I’d say that your name should be on a flathead... Head, that can power any engine/car to 127 MPH , WOW !
Put me on list... when available !

Regarding buying/selling stuff.
I’ve lived by the tenant , when selling, that
If you dont like what you bought from me... Ill buy it back... and/ or agree to where both are satisfied.
NEVER a problem encountered this approach to our hobby !

This guy does not deserve privilege to sell stuff on HAMB !
As he has no integrity/honor and taints that great site and members !
Yes, I paid a lot more $ than what value I received. He had of room $ to make this right...but hung up instead.
KARMA...will visit him , no doubt !
Click to expand...

Cest' la vie....as Mrs Gump said "you never know what you're going to get"
 
hardtimes said:
Thanks John,
I’d say that your name should be on a flathead... Head, that can power any engine/car to 127 MPH , WOW !
Put me on list... when available !

Regarding buying/selling stuff.
I’ve lived by the tenant , when selling, that
If you dont like what you bought from me... Ill buy it back... and/ or agree to where both are satisfied.
NEVER a problem encountered this approach to our hobby !

This guy does not deserve privilege to sell stuff on HAMB !
As he has no integrity/honor and taints that great site and members !
Yes, I paid a lot more $ than what value I received. He had of room $ to make this right...but hung up instead.
KARMA...will visit him , no doubt !
Click to expand...

I agree, karma will catch up with him or her, eventually.

I wish the head alone was the key to the power, it was only a portion.
When was the last time you had a 4bbl 600 cfm carby on a Model "A" motor.
This basic motor with mechanical injection went that fast.
This head will not be produced, Jim's is pretty good.

John
 
Jack Shaft said:
Folks get real ugly when it comes to money. Have a friend who just passed, the nicest guy, he would give you the shirt off his back. He was in his 80"s when he asked a 'friend' of ours to build him a hot B engine.. they had machine work done, all nice parts...Hollywood Cragar head completely reworked, full pressure, all the trimmings. .once the 'friend' found out he was sick he halted all work, all the pieces are ready, probably 10 k in.. when his widow asked about the engine he gave her a junk A block he got for fifty bucks, he said that's all he was given.. made me sick, and like your story it speaks a lot about a percentage of club members and fellow enthusiasts
Click to expand...

Thats low, and a scummy thing he did.:(
 
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