440 cold engine break in

[MOPOWER871]

 

[khryslerkid]

If everyone had one of those.

I wonder how long they run it on there?

 

[Ski 61701]

That is so neat. I wonder the same thing how long do they run the motor on it to seat the rings and break in the cam. Is there a benefit to breaking a motor in this way?

 

[Beekeeper]

Cool

 

[dieseldazzle]

Awesome

 

[ChargerST]

I wonder if this is only done to break in the cam. I would assume that ring seating can't be done this way as there is no load on the engine (rings sit differently when there is no combustion pressure in the cylinder and no heat expansion of parts).

 

[GTXperience]

That's crazy ... crazy cool that is.

 

[MarPar]

 

[Moparsmitty]

Looks like a great way to break in a flat tappet cam if you have the machine.

 

[Budnicks]

Pretty cool video...

 

[khryslerkid]

I'm thinking they would run it just like a running engine. 2,000 rpm for 20-30 min.

Here is a machine for breaking in cams. They break it in with the lifters, then send you the set.

 

[Ski 61701]

I'm thinking they would run it just like a running engine. 2,000 rpm for 20-30 min.

Here is a machine for breaking in cams. They break it in with the lifters, then send you the set.

Now that is slick. In comparing the 2 videos the speed of the cam king is what I wouldve thought the Chrysler set up would have been spinning just as fast. Both videos very informative

 

[ChargerST]

I'm thinking they would run it just like a running engine. 2,000 rpm for 20-30 min.

Here is a machine for breaking in cams. They break it in with the lifters, then send you the set.

I've thought about offering this service myself but after thinking about it it just doesn't make sense and here's why:
You simply can't break in a cam outside the block it is supposed to go in - at least a factory block. The reason is that the lifter bores are not in the same location for each block. If you would break in the cam in that machine and then put it in a factory block the cam/lifter wear marks don't match - even if you have lifters in the correct order. The factory tolerances/machining deviations are just too big.

 

[khryslerkid]

I've thought about offering this service myself but after thinking about it it just doesn't make sense and here's why:
You simply can't break in a cam outside the block it is supposed to go in - at least a factory block. The reason is that the lifter bores are not in the same location for each block. If you would break in the cam in that machine and then put it in a factory block the cam/lifter wear marks don't match - even if you have lifters in the correct order. The factory tolerances/machining deviations are just too big.

I was having the same thoughts.