How bad is it really (1 Viewer)

[ryaneddy16]

Well its sad but i think my motor is toast. I found this in the oil pant when i pulled it to change the gasket. Its all metal. My motor docent knock but has had low oil pressure and low compression in one cylinder. I have a thread on here talking about what i wanted to do if I swap the engine out with something different. Ive decided to keep with my original plan which is a 2fe with a 5 speed (h55f or a nv4500)

 

[alaska120]

If I had to guess by the looks and description I'd have to say you are looking at leftover mains.
Put thicker oil in, baby it and prepare for the big build. Any noise crops up quit running her. It isn't worth ruining he block and crank.

 

[ryaneddy16]

Thats what im thinking

 

[cederholm]

Can't you pull the caps (one at a time of course) and check the lower half of the mains? Check for scoring on the crank. And are you sure that isn't a remains of a ring from that low compression cylinder?

I'd want to know where that came from before running the motor.

~ Carl

 

[alaska120]

You could pull the caps but the material looks like bearing material. I don't think the low compression cylinder is telling but low oil pressure is as well as lack of knock caused by a rod. I've seen rings seize, break or burn but these were always in their groove. I suppose it could be piston fragments squished flat either from a burned piston or broken skirt... So I guess a good question would be what is the compression on the low cylinder and what is the oil pressure at now?

 

[cederholm]

Good point about the rings staying in the groves.

You could pull the caps but the material looks like bearing material. I don't think the low compression cylinder is telling but low oil pressure is as well as lack of knock caused by a rod. I've seen rings seize, break or burn but these were always in their groove. I suppose it could be piston fragments squished flat either from a burned piston or broken skirt... So I guess a good question would be what is the compression on the low cylinder and what is the oil pressure at now?

 

[ryaneddy16]

i couldt tell you a number on how low the pressure was but at idle it would be at the bottom of the gauge and at 2K rpm it would come up to about 1/2 or 3/4 up the gauge

 

[alaska120]

Well if you are referring to the oil pressure I'd say you are fine. Mine hovers on the low end and runs fine. Is the material from the pan smooth like butter or chunky bits?

 

[ryaneddy16]

Well if you are referring to the oil pressure I'd say you are fine. Mine hovers on the low end and runs fine. Is the material from the pan smooth like butter or chunky bits?

A friend of mine makes them for ford rangers and he let me borrow his jig to make these

Chunky bits

 

[alaska120]

Ok...is this all that was in there? It looks like half a teaspoon. a magnet stick to it or not?

 

[ryaneddy16]

there was about a teaspoon and it was all magnetic

 

[ryaneddy16]

I pulled the mains and too me the look okay but they look corroded? starting at the flywheel

 

[ryaneddy16]

the rest

 

[ryaneddy16]

Here are some old compression numbers from when I notice that oil was being pumped threw the breather on the valve cover in to the air filter housing. Starting from the firewall.

 

[alaska120]

Hmm. Some wear but not too awful. One cylinder is low for sure. That probably allowed some compression to blow by the rings causing the oil in the breather. Guess I'd pull some rod caps while you're there and check those. That material is coming from somewhere. If it was silky smooth I'd say just wear over the years but chunky means some scoring somewhere. Magnet test indicates bearings.

 

[klinetime574]

Good advice in here. This 2F gonna be running the streets again soon

 

[Output Shaft]

Just for something to visually compare. Here's a pic of my rear bearing cap near the flywheel. Engine had 287k on it. This one seemed fine enough to me. No engine issues going on. Just wanted a peek.

 

[ryaneddy16]

im going to pull it this week

 

[alaska120]

Clean her up, new rings and bearings, and she'll be good as new. Mic the journals to make sure they are within spec. Cam too.

 

[ryaneddy16]

Oh no no that just wont do. I got something up my sleeve