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PLUS 1. It's inexpensive and easily done. Oil analysis ain't a cure, but it sure is good for a head's up. Cheap insurance especially for those who put a lot of miles on their Deuce.

I have a sample and its getting analyzed. I also have the filters (spin-ons) and will be cutting them open to examine the entrails.

I wouldn't jump to any conclusions about developing a PM out of what I've found on this tear down, not just yet any way. There is still too much work to be done. Heck ... the other 90% of the camshaft is still in the block. Also, remember that this is only ONE engine and the only one I've...

Nothing visible. I checked pretty close, and could not see anything. I'm sure that there must be a clearance between teeth spec, but with the camshaft being broken and rocking up and down, I was unable to check it. Were I to rebuild this engine, I think I would actually try to reuse these...

No, only the front one. My boss's wife had a baby and I'm pulling some extra duty filling in. I've not been able to get the engine off loaded from my truck yet. Unknown, see the above question/answer. I do not yet know, but I WILL find out. Not much. I measured the bearing at the 6-12...

Andy, If you get a free moment could you please post to this thread the indicated miles and hours on this engine at the time of the failure. I know you sent them to me but I can't find the PM. Thank you Ted

The multifuel's camshaft in and out movement (thrust) is controlled by the thickness of the camshaft thrust plate and the clearance between it and the thrust surfaces of the back of the cam gear and the thrust face of the front of the camshaft. The thickness of the thrust plate is given in the...

Today I was able to measure the front cam bearing journal AND the front cam bearing inner diameter. Although I am not stopping here with my tear down, I do believe I have found the cause of the failure. Here is my post #4 from this thread. I have eliminated everything but statements relative...

An old bull and a young bull were standing on the top of a hill overlooking a herd of cows in the valley below. The young bull said, "Hey Old Man, what say we run on down there and inseminate us some of them cows". "What do you say we WALK on down there and inseminate them ALL" was the old...

Those are pushrods, Andy. Don't worry, the pictures of your bent valves will make you just as sad. ;-)

A Spark Test confirms that this cam shaft is of steel and not cast iron.

Yeah ... me too. No doubt at least 5 valves touched pistons, I'd like to see what else is going on in there. I'm gonna get to all that after I get the engine out of the back of my truck and down on the ground where it would be a bit more stable and I don't have to climb up and down all day...

No ... its just the pictures. The color of the break was uniform throughout. The high spots along the edges do show just a *little* shine where the two pieces of the cam touched while Andy tried to restart the engine.

A side note: I didn't have a puller suitable to remove the crank pulley/harmonic balancer assembly, so I spent some time this morning making a very nice tool for the job so as not to break anything. It turns out I wasted my time ... At least it didn't land on my foot.

Below are pictures of the cam gear and the broken nose of the cam. Please note that the bearing surface does not show any galling or oil starvation, and that this side of the break shows the same crystalline appearance with no evidence of grinding or friction wear. For the record, the cam's...

I removed the crankshaft pulley/harmonic balancer assembly and front engine cover. I checked all of the gears to make sure that none were bent or had teeth chipped, worn or missing. I could see no evidence that a foreign object dropped into the gear set and jammed. Using a wrench, I spun the...

I began by removing the rocker arm assemblies and push-rods. The rocker arms were free and not binding. 5 of 12 push-rods are bent. By measuring their heights, I could see that at least 3 valves are bent to the point that they are hanging open a bit. This is consistent with an engine who's...

LDT 465 Multifuel broken cam. Andy3's M35A2 A couple months ago, Andy3 posted that the multifuel engine in his M35A2 had died on the road. He heard a “thump” and that was it. The truck was towed to 73m819 (Ron)'s shop who found that the engine had broken a cam shaft. This truck was...