Wiped a cam lobe?

[default]

Working on the Yugo today fixing the temp gauge and wiring a tach up. Fired it up for a cooling system and tach check. Noticed it was making a bit more noise than usual, especially seeing as I had just reshimmed the valves a few hundred miles ago and it was full of fresh 15w50 M1. Removed valve cover. The lobe closest to the belts on cylinder 1 (cant remember port order, intake?) is wiped down enough the chamfer on the edges of the lobe at its tip and then some are gone.

How screwed am I? Oil in the cam box is glittery, hopefully not so in the sump. It was making 32 lbs at idle when I started it. Can i maybe get away with some flushing and a new cam?

Definitely not an oil issue, I always ran QS defy 10w40 before moving to M1 15w50 because 40 weight was giving my iffy oil pressure. It looked fine when I re shimmed the valves last year. For those unaware the Fiat SOHC valves are adjusted by changing the wear surface of the lifter/follower. Haven't yet checked the shim under the offending lobe, they are under a pool a of oil if the engine has ran within a few weeks. I was too mad to go that far and get the big syringe out.

 

[Chris142]

All that metal is bad news. A cam is the hardest metal in an engine and having it circulating with the oil will ruin the soft lead coated bearings real fast. You can try patching it up with a new cam but don't be surprised if it dies in the near future.

 

[bvance554]

I'm still trying to wrap my mind around the fact that you still have a Yugo. How many miles? Has it been good otherwise? That thing is a relic.

 

[zloveraz]

Originally Posted By: bvance554
I'm still trying to wrap my mind around the fact that you still have a Yugo. How many miles? Has it been good otherwise? That thing is a relic.


You read my mind! Ha ha.

 

[NHGUY]

Dont think Yugo,think FIAT.Same basic thing.

 

[Donald]

Originally Posted By: NHGUY
Dont think Yugo,think FIAT.Same basic thing.


Is this for fun or for driving? Is a Yugo worth $$? As I remember it was a basic vehicle, poorly put together. I think the Yugo factory was bombed by the US many years ago in a Serbia confict?

 

[supercity]

Which motor does it have? Ive seen Fiat SOHC motors with worn cams. TBH I would not be worried, just replace the cam and move on.

 

[meep]

^^^agreed^^^. metal shavings may have scored the oil pump, IF it lifted them off the sump floor. but the filter will have blocked them from getting any further.

Wonder if there might have also been a defect in the shims used.

 

[HerrStig]

Why do Yugos have heated rear windows............?

 

[Smoky14]

Originally Posted By: HerrStig
Why do Yugos have heated rear windows............?


I'll bite, why????

 

[TFB1]

Originally Posted By: Smoky14
Originally Posted By: HerrStig
Why do Yugos have heated rear windows............?


I'll bite, why????


To keep your hands from getting cold while pushing it...

(yeah I owned one)

 

[default]

Originally Posted By: supercity
Which motor does it have? Ive seen Fiat SOHC motors with worn cams. TBH I would not be worried, just replace the cam and move on.


Its a Fiat 1116 SOHC, same as a 128, just built by communists.

 

[supercity]

Fiat 1100 is a good little motor. Cam problems are not unusual across the Fiat engine range.

 

[Kruse]

20+ years ago, I dated a girl whose dad was a big-wig for a company in Dallas, TX. Even though he held a high position for a company that you all have heard of, he drove a Yugo to work every day. Believe it or not (and despite the reputation of the Yugo), this car was as reliable as a person could ever want, and he put many, many miles of trouble-free driving in it. I knew the guy for several years and the only problem that I recall him ever having on it was some bad wiring back near the brake lights.
You want to know the funniest part? The car had no factory AC and during the summer he would come home from work drenched in sweat....while wearing a suit.
I didn't understand it either.

 

[Donald]

Originally Posted By: Kruse
20+ years ago, I dated a girl whose dad was a big-wig for a company in Dallas, TX. Even though he held a high position for a company that you all have heard of, he drove a Yugo to work every day. Believe it or not (and despite the reputation of the Yugo), this car was as reliable as a person could ever want, and he put many, many miles of trouble-free driving in it. I knew the guy for several years and the only problem that I recall him ever having on it was some bad wiring back near the brake lights.
You want to know the funniest part? The car had no factory AC and during the summer he would come home from work drenched in sweat....while wearing a suit.
I didn't understand it either.


He should have gotten a JC Whitney add-on A/C.

 

[default]

Yugo offered factory air, I dont have it but dont need it, the car has good ventilation, rear vent windows and front vent windows on early cars.

 

[artificialist]

I would think metallic junk of that size would be easily trapped in the oil filter. Also, when replacing the cam, I would make sure to replace all cam followers at the same time. They might have wear patterns that wear the new cam out quickly, and who knows how much wear they have on them?

 

[default]

The cam follower wear surface is the adjustment shim, like in a Ferrari.

 

[Propflux01]

many motorcycle engines are like that as well. which brings me to this question: Did you by chance use a magnet to catch and remove the shims by chance?

 

[default]

No magnet that I recall. Lever them up with a screwdriver a bit and then pop it out with piece of wire. Slide out with a another tool I made out of wire, mic it, record, put it back, repeat 8x, check all the clearances, do math, figure what i need and what can be swapped around, email my shim guy and swap everything around, check work and done.