Author Topic: Bottom end probs. (Read 5226 times)

YotaYota · « **on:** Apr 24, 2004, 06:18:20 PM »

Ok, I need some advise or guidence, im having nothing but problems w/ my 22REC (110,000 miles) 4mon. ago it devolped a knock wich was a bad rod bearing, it took the rod out w/ it, so i used the crank, mains, rod bearings, thrusts, and 1 rod out of my parts 22R, a week later a spun a bearing(rods miked out fine), this time i got smart and bought a remanufacturd crank kit,striped and cleand the block, ran for 3 months and developed a slight knonck, shut it down right away and pulled oil pan, mains were ok, rod bearings were well on there way(oil was burnt,but motor never got hot) miked the jornals, they were fine (i thought), put new bearings in it ran great for a week. now the knok is back and its pretty bad (crank must be out of round). Im stumped, why do i keep killing rod bearings, rods and cranks? oil ps. is 15 at idel (warm) and 30 at 3K, so i think thats fine. is it cause i mixed rods ? what should i do this time ? junkyard motor or new crank kit and rods ?
Im really pissed off & frustrated, any thoughts would be much appreciated.

-Anthony

Ferg · « **Reply #1 on:** Apr 24, 2004, 07:29:08 PM »

Try a new oil pump.

TigerToy · « **Reply #2 on:** Apr 24, 2004, 10:30:22 PM »

Sounds like your block needs a good trip to the machine shop. Sounds like in might need a line bore.

WHITE_TRASH · « **Reply #3 on:** Apr 25, 2004, 12:21:05 AM »

That oil pressure really sucks especially for a ground crank and new bearings!! Id clean the oil pump pickup and check the tolerances on the pump itself for starters. Youd be $$ ahead to put a new pump in it just for good measure and peace of mind. Good luck, I feel your frustration!
WT

brainlessfool · « **Reply #4 on:** Apr 25, 2004, 08:08:08 AM »

awwww come on WT, you must have a spare 22re you can throw to da boy

YotaYota · « **Reply #5 on:** Apr 25, 2004, 08:54:57 AM »

Quote from: brainlessfool on Apr 25, 2004, 08:08:08 AM

awwww come on WT, you must have a spare 22re you can throw to da boy

I'de like that very much

lowgeared · « **Reply #6 on:** Apr 25, 2004, 09:18:13 AM »

One of my friends got a complete 22re that was having the same type of problems. After it was disassembled, there was this huge ridge on one side of the cylinder and nothing on the other. This was definately the strangest thing I have ever seen. The crank and rods looked ok as well as the pistons. The only way this block could be used would have been machining it for some big block chevy pistons. Out of balance? Machined off center from the factory? Bent crank? We couldn't find anything wrong other than the block was ruined. My last "budget" 22r rebuild consisted of mix and match rods and used pistons from different motors. I flog the crap out of this motor and no trouble yet. Less than 200 into it. I only replaced all gaskets, rings, rod/main bearings, timing set and oil pump. How do your cylinder walls look?

YotaYota · « **Reply #7 on:** Apr 25, 2004, 11:54:24 AM »

Cylinder walls look great, no ridge at the top, crosshatching still visible, and whats a line bore ?
I found a pick and pull junkyard that has a few REC's, and prices are good too, they have a flat rate of 90$ for a motor, no matter what mileage, year or conidtion, gonna head up there tomarrow to see what they got.
-Anthony

lowgeared · « **Reply #8 on:** Apr 25, 2004, 12:18:22 PM »

A line bore is where they actually "bore" the main caps straight. Usually during a rebuild they hone through the mains. A block requires boring when you install different main bearing caps. For example, a Chevy two bolt main cap block has two bolts per cap. You can upgrade these to a four bolt style after drilling and tapping the block. Then the block needs to be bored to make sure all caps are perfectly aligned. I helped put together a motor where the guy used "splayed" main caps-meaning the outer bolts of the four bolts were angled rather than straight. I guess this would distribute the load more evenly. Anyway, he didn't want to bore it. After the caps were barely tightened down, you couldn't turn the crank anymore. Guess what?? It was pulled back apart and line bored. Go figure.

GRM · « **Reply #9 on:** Apr 25, 2004, 03:35:54 PM »

your oil pressure seems way too low. Mine is around 40 at idle, and close to 80 at driving speeds.

yotaboy79 · « **Reply #10 on:** Apr 25, 2004, 09:28:21 PM »

i thaught i was having problems good luck

YotaYota · « **Reply #11 on:** Apr 27, 2004, 05:58:37 PM »

Jus picked up a new oil pump, rod bearings and the like, gonna put them in tomarrow when I get outa school

, hope this dose the trick !!

brainlessfool · « **Reply #12 on:** Apr 27, 2004, 08:34:35 PM »

don't forget to plastagage um! $Beer Chug\'n$

TigerToy · « **Reply #13 on:** Apr 27, 2004, 08:57:40 PM »

Um, plastagage, what's that?

WHITE_TRASH · « **Reply #14 on:** Apr 27, 2004, 09:13:55 PM »

Any auto parts store worth anything should have it. A machine shop will most deffinately have it on hand. Its actually "Plastigauge" it is a soft plastic stick that varies in thickness. What you do is put the new bearings in and before you put the rod or main cap on you put a 3/8ths long piece of it across the bearing. Torque the cap to spec the pull the cap back off, there is a gauge printed on the paper sleeve that contains the plastigauge. All you do is check what the thickness is of the plastic to know for sure what the specs are. That way you will know that your stuff is machined correctly! No second guessing with this stuff at all.
WT

brainlessfool · « **Reply #15 on:** Apr 27, 2004, 09:16:54 PM »

OMG!! is that how you use it? I thought that you use it like gum

as you are biulding the motor

butt it does make your teeth nice and green

WHITE_TRASH · « **Reply #16 on:** Apr 27, 2004, 09:20:52 PM »

or red and of course blue

brainlessfool · « **Reply #17 on:** Apr 27, 2004, 09:22:52 PM »

Quote from: WHITE_TRASH on Apr 27, 2004, 09:20:52 PM

or red and of course blue

it comes in diff. colors?

TigerToy · « **Reply #18 on:** Apr 27, 2004, 10:25:15 PM »

Actually, your supposed to stick in on the cylinder walls to fill up the space in all those brushy things on the side.

WHITE_TRASH · « **Reply #19 on:** Apr 27, 2004, 10:26:45 PM »

Dont encourage him! It could get very disturbing for our viewers if he goes off the deep end!

84runner · « **Reply #20 on:** Apr 28, 2004, 11:28:51 AM »

You guys actually got it all wrong that stuff is used to plug those little holes in you crank journals and rod journals so no dirt gets in there and messes up your bearings.

Ferg · « **Reply #21 on:** Apr 28, 2004, 03:43:02 PM »

Hey kid the last few posts were in jest...read the instructions!

brainlessfool · « **Reply #22 on:** Apr 28, 2004, 07:12:57 PM »

well he's not talking about mine, I've never been in Jest". don't even know where it is

WHITE_TRASH · « **Reply #23 on:** Apr 28, 2004, 08:13:54 PM »

point for you Brainless

brainlessfool · « **Reply #24 on:** Apr 28, 2004, 09:01:56 PM »

right back at ya

YotaYota [OP]

YotaYota [OP]

YotaYota [OP]

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