Another OHV M90 build

[Dono]

Looking at that, its tough to know where the knock was coming from.
Tim was right, he had a feeling that this motor came from a place that is not noted for taking care of things.

I think the block and rods are the only things that I want to use from this motor.

 

[vroomzoomboom]

sweet baby jesus! i figured, like you said, the motor wouldnt be a1, but.......WOW! i didnt think it would look like that, regardless on how long it was sitting for!!!
me thinks that the bottom end of that motor will be taking a very long LONG bath in mr. hot tank.

 

[Xeek]

wtf. that doesnt even look like gunk. its silver looking. kinda like someone dumped molten solder all over the insides.

 

[Dono]

Its black, but its so shiny, it looks silver with the reflecting.
Almost like black epoxy. At least it isn't as hard as epoxy. Just a greasy mess. I tried using cardboard under the engine, but the floor was still a mess. Then I had to try to use gas to clean the oil/grease off the floor....was all bad.

All I could thing is that this is how NOT to take a motor apart.

 

[jd4242]

My oil pan had about two inches of that crudd in it when i did my rebuild.was the reason i did,it clogged my oil screen.but the rest of the motor looked good.block should be fine after the machine shop.

 

[vroomzoomboom]

I tried using cardboard under the engine, but the floor was still a mess. Then I had to try to use gas to clean the oil/grease off the floor....was all bad.

that was a nice floor.....oops....

 

[phix-]

Dono, JD, all this talk about oil has me concerned as I never really replaced mine (oil pump) during my rebuild (not full tear down). What kind of oil pressure were you seeing before things went wrong? Also, do you 2 have problems not doing 60mph around town driving? I find it increasingly difficult to keep my truck in the 40-45 range. I have to keep my foot just barely in and out of it just to maintain.

 

[Dono]

Phix, my issue is a weak cylinder. I know its not the head, as a full rebuild was done on the heads.

Since Tim donated a motor that I can use the bottom end, Im going to step up to a hotter cam (Probably the Comp Cams 422) and dual valve springs (Comp Cams 988).

I'll install a high volume oil pump at JD's recommendation. I doubt that any of this has to do with your issue though.

 

[Dono]

The oil pan didn't look too bad surprisingly enough. The oil pickup screen is probably over half clogged though.

I have the block in at the machine shop getting cleaned and checked before I order parts.
They will give me a call in a couple of days, letting me know about the block, and if/how much over-sized on the pistons need to be done at a minimum. I just want the extra insurance of someone looking closely at the block as an extra measure of safety.

 

[Dono]

I'll be ordering a new oil pickup also

here's a look at the oil pickup on the donor motor.

 

[jd4242]

here's a look at the oil pickup on the donor motor.

O yummy !!looked just like mine.glad to see project moving so quick.

 

[Xeek]

Damn. Lol. Mine came out looking decent compared to both of yours

 

[jd4242]

Damn. Lol. Mine came out looking decent compared to both of yours

Yea remember me saying..DAMN it looks pretty clean and good!!

 

[Xeek]

Yea I remember lol. And this weekend we get to see how it looks after a year and a half and 6300 miles. Considering I kept having an issue and the oil ended up being chabged no more then 1500 miles apart and I ran so many cleaners through it lol

Hopefully you get your block back and its still usable so you get get your truck runnin gpod again. 422 sounds good to.

 

[jd4242]

Yea I remember lol. And this weekend we get to see how it looks after a year and a half and 6300 miles. Considering I kept having an issue and the oil ended up being chabged no more then 1500 miles apart and I ran so many cleaners through it lol

Hopefully you get your block back and its still usable so you get get your truck runnin gpod again. 422 sounds good to.

I don't expect yours to have gunk .i expect to see missing or broken rings or cracked pistons or bend rods!!

 

[vroomzoomboom]

after seeing the pic of the bottom end off the donor motor, i cant understand why it had a knock .
im starting to worry on what the crank measures out to now. good thing that motor was a easy pull.

 

[jd4242]

No or low oil psi

 

[Xeek]

I don't expect yours to have gunk .i expect to see missing or broken rings or cracked pistons or bend rods!!

i can live with all that except the bent rods. i havent found anywhere that sells them is why..



no/low oil psi, kill the damn motor. glad youre getting the melling m328

 

[vroomzoomboom]

at least i know what black peanut butter looks like now....

 

[Xeek]

hahahhaha. thats funny cause im eating subway peanut butter cookies right now!! yummayyy