i think i needs some help... should i rip out my bottom end

[Bort62]

That looks exactly like both of mine...

Remember however, a hone is not for boring. They are two different things.

If your cylinders are out of round or have any ridging on top or scratches/pitting in the wall, then they need to be bored as well as honed.

The hone is only to break what is called the "glaze" off the cylinder walls when installing new rings in an attempt to get the rings to seat. What it really does is sand the cylinder walls to the correct surface roughness.

The machine shop will follow up with a hone after you get the block bored. It's a finishing step.

 

[addo]

What's wrong with that one? Does it have a specified range of bore sizes? What grit are the stones?

 

[Patrick66]

the bore range is 2 1/2" - 5", so its good there. ive heard that the ball type ones is what im supposed to use, but if you say this one is good then ill use it. grit is 240. willl water be ok, or do i have to buy some oil to use?

 

[Asa]

for a lubricating agent when you're honing?
i wouldn't use water, that's what started this whole mess, isn't it?

use some lightweight oil

 

[Bort62]

WD-40

 

[Patrick66]

yeah someone said to use water, didnt know if that was right.

thanks guys, im going to hone it tommorow.

 

[grocery getter]

use a light oil. the ball style is much easier. check a rental yards, they might have one. if not, you'll do alright with the one you have.

 

[Patrick66]

block has been honed, crank polished, cam and rod bolts have been ordered. all thats left to do is clean the pistons and polish the rods. the problem is that the rods are still 'seized' to the wrist pins, and wont let them come out. ive been soaking them in PB Blaster for about a week, spraying them 2-3 times a day and they still wont come loose. any suggestions?

 

[mustube]

Maybe a press?

 

[Patrick66]

other than a press? i dont have access to one.

 

[woodbutcher]

A long bolt or threaded rod,awasher that is the same OD or slightly smaller than the wrist pin,a nut and a piece of pipe of a slightly LARGER ID and length than the wrist pin.Thread the bolt through the piece of pipe and the wrist pin and the washer,thread on the nut and crank it down.Pin should move.
Leo

 

[grocery getter]

patrick,were there clips on the pistons ? it's been a long time.I thought the sixes were press fit.

 

[Patrick66]

i looked for clips at first, thinking that was what was keepin them in, but i dont think so. i have been hitting them with a rubber hammer and a 5/8" spark plug socket, they move until the rod contacts the piston and then stop. the wrist pin is also stuck to my pistons in 4, in 2 i can move the wrist pin and rod back and forth, but i cant get them unstuck. im gonna try the idea with the bolt and the tubing.

 

[addo]

They're a hot press fit; it means that once they cool there is a good amount of clamping force.

Removal is a job which has two significant considerations - firstly it's best done by a machine shop, and secondly, even then there exists a degree of risk you'll scuff the pins.

 

[Patrick66]

They're a hot press fit; it means that once they cool there is a good amount of clamping force.

Removal is a job which has two significant considerations - firstly it's best done by a machine shop, and secondly, even then there exists a degree of risk you'll scuff the pins.

how hard is it to find new pins? mine dont look that great anyways, but most of it is covered so im not sure. i have to take the pins out to clean everything, i soaked them in cleaner for a week (purple power, also sprayed with carb cleaner) and that took care of about %75 of the cleaning, but the pistons/rods/pins are siezed and wont move. the pins will rotate in 2 of them, but in the other 4 nothin will move.

 

[addo]

Can you spring for new stock pistons in the same size? You may find them sold by the each. It means destructive removal isn't a worry.

 

[bigcatchdaniel555]

When I rebuilt my motor I didnt kknow about Mike so I went to autozone and bought the whole rebuild kit. HI tech is the company and they supply many parts stores Ive hadmine in there for 2 years and run the car prettyhard with no probs. Heres the link for the one with pistons they have one for 336.99 without the pistons. http://www.autozone.com/R,APP1048205/ve ... Detail.htm

Dan-

 

[woodbutcher]

If you buy new pistons,you get new pins.I don`t think that I have ever seen pins available by themselves.
The last rebuild that I did was on a 302,and I used Badger flat tops from
P.A.W. with excellent results.At the time of purchase,including shipping they were $109.00.That price included rings.IIRC,those P.A.W.piston sets are now $120.00 plus shipping.
Leo

 

[Patrick66]

thanks for the replies, i ended up using a torch to get the pistons and rods moving freely again. then i used 100 grit sand paper to clean it. i didnt have them balanced at a machine shop, and i didnt weigh the rods and pistons seperately, but i matched matched up the lightest caps with the pistons/rods and then used some sand paper to finish "balancing" getting them to weigh the same. each one weighs 1124grams without bolts.

 

[Patrick66]

waiting for someone to chime in and tell me i did it wrong.