Allan Faust Posted March 25, 2007 Report Posted March 25, 2007 I knew it couldn't all run smooth.... I brought my engine to a buddy of mine since we had been discussing cylinders and he just got a nice honing kit..... since I can't afford to send the motor out to get "everything" redone.... well, mother is the necessity of invention.... My buddy succeeded in pulling it apart today, and although I wasn't there, it went well.... I'll have more pics tomorrow of everything, but the bearings seem fine, etc..... BUT.... take a look at the pics..... looks like some digging has to be done..... I don't know if I'll have to have the whole thing done,or just the 2 cylinders you see here.... According to my buddy, its been pumpin oil for a while, since the valves had been gummed up as well..... As I mentioned, I'll have more pics tomorrow, so I'll know everything that's going on, and I'll request info on what people think I should "change" or replace then.... So for your viewng enjoyment..... Quote
55 Fargo Posted March 26, 2007 Report Posted March 26, 2007 Allan, is that a 218 or 230, do you happen to know how many bolt holes are on the crank. As you know I presently have a Canadian 218 in my Chrysler, if they have an 8 bolt crank, I may be able to bolt on my extra fluid drive and M5 trans, if I got the inclination.I also know where there is a good running 265, the owner wants me to find him some type of 4 cyl to trade for it, it's currently hooked up to a welder, it was originally from a combine...........Fred Quote
Norm's Coupe Posted March 26, 2007 Report Posted March 26, 2007 Allan, All of the cylinders should be bored to the same size. Shouldn't bore just one or two. Quote
norrism1 Posted March 26, 2007 Report Posted March 26, 2007 Allan, My 218 had to have cylinders 5 and 6 sleeved and everything at .060 over. Quote
james curl Posted March 26, 2007 Report Posted March 26, 2007 Jim Terrell of Terrell Machine had some .090" oversized pistions that I was afraid to try. He assured me that the Plymouth block could be safely bored up to .100" oversize. How big did they have to bore oversize for the sleeve and is it a dry or wet sleeve? Quote
martybose Posted March 26, 2007 Report Posted March 26, 2007 James, When we took apart my 230 block, we found it was a well worn .060" over motor. I could not find any .080" or bigger pistons, so I had a set custom made with a metric ring set that came out at .072" over. Anyway, my point is that my machinist had an ultrasonic gauge kit, so we checked every cylinder every 90 degrees at three different heights (top, center, bottom of bore). My block could easily have been bored .100" over, there was plenty of material and the bore was well-centered in the casting. Marty Quote
greg g Posted March 26, 2007 Report Posted March 26, 2007 Althoug I agree with Norm that all cylinders should be the same bore, back in the day it was not uncommon to see engines with different bores across the cylinders. As a matter of fact it was quite common in Pontiac flat head sixes and eights. They were aparently notorious for breaking thier cast iron piston heads off and scoring cylinders with alarming regularity. I recall my uncle had a 41 Pontiac that had two pistons and cylinders repaired in his driveway. A fellow came over with theis goring rig that was mounted to the engine block looked kind of like a minature oil drilling rig. (Hood came off during thei process) Aparently the oil was drained, the pan and head were pulled the offending piston/s and rod/s removed, the rig attached and the boring took place wit the engine in the car. One was a 10 over and the other was a thirty over. After the boring was done, the culinder got honed, and a new piston and rings were fitted. the crank was cleaned, boring tower removed, pan and head went back on, and off you went with 6 stock piston, and two new ones of different sizes. Probably with compression ratios in the 6 to 1 range, the diffence was negligable. And it was certainly cheaper than having the engine pulled and rebuilt. Quote
Allan Faust Posted March 27, 2007 Author Report Posted March 27, 2007 Allan, is that a 218 or 230, do you happen to know how many bolt holes are on the crank. As you know I presently have a Canadian 218 in my Chrysler, if they have an 8 bolt crank, I may be able to bolt on my extra fluid drive and M5 trans, if I got the inclination.I also know where there is a good running 265, the owner wants me to find him some type of 4 cyl to trade for it, it's currently hooked up to a welder, it was originally from a combine...........Fred Fred, Its a 218... to see more pics of the engine, go here (you can actually see the 218 stamped on the crank in one pic.... http://smg.photobucket.com/albums/v395/joker77/Engine%20-%20Drivetrain/ Allan Quote
Allan Faust Posted March 27, 2007 Author Report Posted March 27, 2007 Allan' date='All of the cylinders should be bored to the same size. Shouldn't bore just one or two.[/quote'] Norm, I won't have only one or 2 bored, but I don't know how "deep" the grooves are, so the machine shop will tell me if I just have to take a little off the top (and keep the same pistons) or rebore the whole thing... that is what I meant.... Allan Quote
norrism1 Posted March 27, 2007 Report Posted March 27, 2007 Jim Terrell of Terrell Machine had some .090" oversized pistions that I was afraid to try. He assured me that the Plymouth block could be safely bored up to .100" oversize. How big did they have to bore oversize for the sleeve and is it a dry or wet sleeve? The sleeves are dry and pressed into the bore. ( Means they freeze the sleeve in dry ice and press into overbored cyclinder. What the actual over bore size was I couldn't tell you! Then all cylinders where bored to .060 to keep everything balanced. Quote
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