Crankshaft 620 motor

How to remove the crankshaft pulley. Does the pully bolt have reverse threads? I have not tried to take it off yet but will tomorrow. I also have the motor on a stand and how can i keep it from turning?

the pulley bolt has normal threads.

with the motor on the stand, turn motor upside down.

remove oil pan

use a handle of a hammer or simmilar piece of hardwood and put it between one of the crank's counterweights and the side of the block to prevent it from turning.

remove crank pulley bolt.

remove crank pulley.

make sure you do not lose the crank's woodruff key (i don't have any to spare, so don't lose it!)

label everything.
engine internals must go back together exactly how they were when you took it apart or you WILL have problems.

talk to you later.

thanks man!!! well i finally got the bolt off after alot of beating and hitting and cussing it finally came off. Now im having problems get the pulley off. got to get a pulley puller. :grinno: :grinno:

yea, sometimes they need some encouragement to come off.

you could probably rent a universal puller from a local auto parts store or just buy one, they aren't too expensive.

got the pulley off today. used a persuader aka "hammer" lol i had to stop to watch the Carolina game. So tomorrow ill finish taking the crank out, clean everything and possibly use a cylinder hone to clean the cylinder walls. I have never used one so any hinters would be helpful if you have used one before? Prolly the reassembly process will start tuesday or wenesday!!!! hell yea!!!!

are you talking about one of those powerdrill attached hones?

i've only used one of those once.

take it slow.
use lots of oil, don't be afraid to make a big mess. (because you will)
make sure you are using a variable speed drill. (slow speed)
plunge in and out of the cylinder slowly, trying to match the speed of the drill.
you want to get a 45 degree crosshatch.

sorry it took me so long to get back to you, been busy with work. i've mostly been posting in the morning before i leave for work, haven't been on AF much. O well, its off to work i go.

yea thats it, prolly going to do that tomorrow hopefully. didnt get as much done last night as i wanted to, so today i will finish the crank removal .banghead: :banghead: it is a slow process when you want everything to be perfect:screwy: but it is coming along.

im haveing a problem getting the bearing caps off the crank shaft. :banghead: the book tells me to use a pullker which i do not have. Is that the only way to get it off if so i will buy one. if not throw some help my way:nono:

Some more pics :)

http://img34.imageshack.us/img34/3394/100071300s4ya.th.jpg (http://img34.imageshack.us/my.php?image=100071300s4ya.jpg)

http://img34.imageshack.us/img34/2901/100071400s8mu.th.jpg (http://img34.imageshack.us/my.php?image=100071400s8mu.jpg)

http://img34.imageshack.us/img34/3540/100071500s1eg.th.jpg (http://img34.imageshack.us/my.php?image=100071500s1eg.jpg)

http://img363.imageshack.us/img363/4342/1000716s3lb.th.jpg (http://img363.imageshack.us/my.php?image=1000716s3lb.jpg)

http://img363.imageshack.us/img363/2326/100071700s4hk.th.jpg (http://img363.imageshack.us/my.php?image=100071700s4hk.jpg)

http://img363.imageshack.us/img363/4690/100071800s2fg.th.jpg (http://img363.imageshack.us/my.php?image=100071800s2fg.jpg)

http://img398.imageshack.us/img398/2093/100071900s4nw.th.jpg (http://img398.imageshack.us/my.php?image=100071900s4nw.jpg)

http://img398.imageshack.us/img398/6357/100073400s9rj.th.jpg (http://img398.imageshack.us/my.php?image=100073400s9rj.jpg)

I left the pic of the head at hi res figuring there might be signs of problems there you would recognize that we would overlook.

Thanx for all your help on this :), you have no doubt saved us hours of headaches.:banghead: :lol:

pre-warning -
i am as drunk as i have ever been, atleast in aas many yeaRS as as i can remember. i wii;l probably take back at least half of the following words that i manage to type.

if i get to work on time it will be a miracale. damn, that stripper was hot.

your head looks good, the carbonization looks to be isolated to the combustion chamber. it looks like your headgasket was holding a good seal. the rust is all where it should be. your headgasket was doing its job.


i went to a combination batchular party/21st birthday party, damn that stripper was hot, i licked whipped cream from her ass crack. :licka:

the bearing caps are only hold on by the two bolts, if they are fighti9ng you, it is the oil's surface tension, i have never needed a special tool to remove the crank bearing caps, clean your hands and get a good grip on the cap and pull, it shuld pop off. i don't know why it is giving you problems. once the two bolts are off, it should comeright off.

her "name" was monica.

if the two bolts are removed and the bearing cap still won't come off, try spraying it with some brakeclean, that should cut theoil and make the cap fall right off. remembr to thoroughly re-oil the bearing/journal before re-assembly.

i am as oldas you, (check profiles, same birth year) but this was my first stripper, she was sooiooooo hot, my hands still smell like her. it was a private party, she was buck-ass naked the whole 3 hours, rubbin'; on all of us. nice ass, i can't even begin to describe it.

sooooooooo hot.:evillol:

if i have time in the morning before i get to work, i will come back and revise these comments.

if i don't remember to say so when i am sober., thanks for the pics, keep 'em updated. even dirty datsun engine interanals look like mechanichal porn to me.

i am going to bed, TTYL. (talk to ya later)

BTW-, nice job on gettin all four mounts on the stand to line up, i usually just settle for three.

the ? is did you take pics?:naughty: you gotta send some man...:lol2: but thanks to your help with a little persuation got the crank out today.... going tomorrow to buy a parts washer clean everything and start the reassembly process this weekend, hopefully all will be ready when the carb and intake gets here. i prolly will look for a rebuild kit soon. thanks for everything man. i will have more fun putting it all back together.
congrats on your night last night:icon16: sounds like hella fun, prolly more fun then anybody i know had last night lol:banghead:

sorry man, one of the very few rules was no pictures.

your carb mailed-out today ! ! !

haven't heard much from you lately. busy hard at work on the datty i'd assume.

keep posting the "in progress" pics!

will do prolly get some new pics out soon. I have already started power coating some stuff and got some stuff clean. been really busy at work, and the wife got chicken pox and as you know that is not good while she is pregnant been back and forth to the doctor right now im supposed to be at work. But just got back from the doctor.

wow, sorry to hear that your family is sick. hope everything works out.