the_supernerd

I just finished doing the timing chain on a 22R. I started it up and it ran for a while and then oil started slinging off of the pulley and it was making some knocking & grinding noises. I pulled off the oil pump and it looks like something ate it up as you can see in the picture.


What did I do wrong to cause this? Was I suppose to do something to prime the oil pump? I did not see anything in the factory manual about that. I am also thinking that the repair sleeve fell of and destroyed some of the pump. The repair sleeve came off easily and is totally destroyed, but I am not sure if that was the cause or a result.

all_terrain17

I guess that happened because you didn't prime it...

Here's what I did for mine -



On a related note, how did you seal the pump? I used the small o-ring and torqued to specs, but it still spit oil like crazy

the_supernerd

I will try priming it with vaseline when I get my next oil pump. I sealed it using a new o-ring and torquing it like you did. According to the factory repair manual, there were about 3 different torque specs for the 5 bolts.

dcg9381

Yikes.. Lack of oil shouldn't have done that, at least not in the immediate sense of the word. Priming it is a very good idea if it gets removed, however..
Did it move smoothly prior to reassembly?

TNRabbit

I would suggest something more substantial than vaseline; try STP oil treatment. It's sticky as hell & will hang around a little bit longer than petroleum jelly.

TNRabbit

"What happened to my oil pump?"

It chewed itself up. What year is it? Check the FSM for details on installation:

http://personal.utulsa.edu/~nathan-b...fsm/index.html

the_supernerd

It worked fine and moved smoothly before I put it back on. I have the FSM and I followed it exactly and I could not find anything in there about priming it, but I will do that next time. The more I think about it, I think that the repair sleeve I installed came loose and went into the oil pump. The truck is an '88.

TNRabbit

then this is the proper FSM: http://www.brian894x4.com/Scannedmanual.html

I don't know what else to tell you if you follow the FSM...anyone else have any suggestions?

the_supernerd

Anyone ever heard of or seen a repair sleeve fall off? How could I have messed up the installation of the repair sleeve? I followed the directions that came with it exactly. I did have to take off an old repair sleeve to put the new one on.

toomster

I may be in left field or just stating the obvios with this one, but it looks like the oil pump drive sleave might have not been pressed all of the way onto the crank shaft. that may have caused it to be tightened against the oil pump housing when you installed the oil pump mounting bolts.

Fahrenheit 451

It has been a while since I did mine, but from faded memory, I would say that crank pulley looks like a horror story. Is it as eaten up as it looks in the pic? Looks like a ton of grooves and maybe even steps in it going from front to back.
Speedy sleeves are crap in the best of times and I would think if the pulley is as far gone as it looks the sleeve was doomed. I my worthless opinion, I would say your best bet is to start off with a new pulley and ditch doing any more speedy sleeves. With a fairly decent crank pulley, moving the oil seal by using one of a different profile or sanding some off of the rear surface is a much better bet than a speedy sleeve any day.
Even when done right, speedy sleeves will be out of round. Search Marlincrawler.com and you will find that even Marlin himself can't get one on round!
Since you need a new pump anyway, you can keep the seal that will come with it as long as you ditch that pulley if it is as bad as it looks.
It is interesting to see that the drive splines on the pump are eaten only half way like that. It looks like it wasn't seated all the way into the pump.
How does the crankshaft key look? From what can be seen in the pics, it looks like the slots on the pump and in the pulley are ok, but seems like a good idea to make sure the key is in good shape too.
Maybe you could find a decent used one. Looks like a new one is some decent $ so don't take my advice without getting that one checked to see if it is even serviceable.

the_supernerd

The pulley was fine except for a small groove in it. It got chewed up after this happened. I have another pulley that I will use with no repair sleeve. The front of the oil pump drive gear was eaten up, along with the front of the drive spline, that is why I think that the repair sleeve came loose and destroyed it. The crankshaft looks good and so does the key. I found an oil pump on eBay for about $30 new. I hope it is a good one. The old one is definitely not servicable since the front part of it is totally destroyed. I think I will skip using those sleeves if I can from now on.

TNRabbit

I woulnd't trust any oil pump other than new OEM or www.engnbldr.com.

scrid

Wheres the keyway for the pump drive collar?