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| Removing rods...problem. https://slantsix.org/forum/viewtopic.php?t=37135 |
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| Author: | CudaViking [ Wed Sep 16, 2009 8:51 pm ] |
| Post subject: | Removing rods...problem. |
Hey everyone, ok so im trying to get this slanty disassembled and ready for cleaning and im stuck at the moment. Its been sitting awhile so there were already several frozen/stuck parts on it that took me a bit to work off but now I cant get 3 and 6 connecting rod caps off. Any ideas to help me? Any and all ideas/tips/tricks welcomed and appreciated. Keep in mind this is my first rebuild im attempting to do so im still new to things. Also getting pistons, cam and lifters out any tips on that would be great also. Thank you, Alex |
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| Author: | theomahamoparguy [ Wed Sep 16, 2009 9:57 pm ] |
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stuck rod caps can be a problem, especially when rust is involved. After removing the rod bolt nuts, I just used to tap on the rod bolts with hammer and brass drift [large]. If that does not work, you may have to beat the pistons from the crankshaft side of the piston. Maybe use a piece of scrap iron to reach to the bottom of the piston. A little heat from a propane torch on the rod cap and tapping with a small hammer might help. Youre probably gonna have to resize the rods. Of course, new pistons may be required but youre rebuilding anyway and replacement pistons are cheap. You have removed the head I assume. Lifter will come out after head removal. |
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| Author: | CudaViking [ Thu Sep 17, 2009 5:47 am ] |
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Ive tried tapping them with a rubber mallet, and used some WD. Ive also tried to get the piston out from the crank side and it wont budge. Its got me ticked off a little bit. |
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| Author: | 6shotvanner [ Thu Sep 17, 2009 5:58 am ] |
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Save the WD40 for something else and get some PB Blaster.Spray the heck out of every thing and just let it soak,add more,soak more,repeat.I'd roll the block over and hose down the cyl/piston with the PB and just let it do it's job,you might have to do all this over a day or three but the stuff works,that and tapping the offending rod caps and pistons.Good luck |
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| Author: | CARS [ Thu Sep 17, 2009 6:31 am ] |
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Quote: Save the WD40 for something else and get some PB Blaster.Spray the heck out of every thing and just let it soak,add more,soak more,repeat.
X2. WD is a lubricant, not a penetrant. A quick "salesman" trick to determain if your using a penetrating oil or lube is to fill a styrofoam cup half full of water and spray your stuff in it. If it penetrates it will go right to the bottom and eat a hole in the cup (making a wet mess so do it over a drain). WD40 just floats. Works great to keep your hinges from squeeking though.
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| Author: | stonethk [ Thu Sep 17, 2009 6:33 am ] |
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I second the PB blaster idea. Also, if your going to use the same cam and lifters , get a paint pen or something and mark them so you know were they go for re-assembly. |
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| Author: | CudaViking [ Thu Sep 17, 2009 7:07 am ] |
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Ive used PB blaster aswell(Thats how I finally got my balancer off). They wont budge. Theres a little side to side movement of the rods on the crank(Is there suppeosed to be a noticable if any side to side on the rods, does that mean theres wear?). Ill go get em soaking some more though. I dont know, I guess I shoulda been more prepared for little problems like this 
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| Author: | 66aCUDA [ Thu Sep 17, 2009 7:13 am ] |
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You will need to most likely rent a ridge reamer to get the pistons out. Have someone show you how to use it (that knows how). Yup on PB Blaster I buy it by the gallon. If you get stuck PM me and Ill give you my phone number. Frank |
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| Author: | CudaViking [ Thu Sep 17, 2009 7:23 am ] |
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Quote: You will need to most likely rent a ridge reamer to get the pistons out. Have someone show you how to use it (that knows how). Thanks for all the tips guys.Yup on PB Blaster I buy it by the gallon. If you get stuck PM me and Ill give you my phone number. Frank Ill see what I can do on the reamer and let you know how it goes. Thank you, Alex |
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| Author: | dennisd4o [ Thu Sep 17, 2009 12:04 pm ] |
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If you are trying to bust them loose at TDC rotate the crank to BDC and try again. You could be against the ring ridge at TDC. You need to be able to get a good shock on the piston so a rubber hammer is not the hot setup. A metal hammer and a metal drift to hammer on the underside of the piston would be the best. It sounds like there is a lot of bearing clearance. It may mean that you have spun bearings and overheated rods. Is there any evidence of the caps you are having trouble with have been hot? If it was me I would not use the ridge reamer. Get the pistons loose and take them out the bottom after you take the crank out. It is too easy to over ream the ridge and ruin your block. |
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| Author: | CudaViking [ Thu Sep 17, 2009 12:45 pm ] |
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One is at BDC and the other is about halfway in between. Not that I can tell that theyve been overheated/hot. |
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| Author: | Charrlie_S [ Thu Sep 17, 2009 3:58 pm ] |
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How many of you, suggesting removing the pistons from the bottom, have actually done it. I have tried it on several occasions, and always failed. The piston hits the main bearing web in the block, before clearing the bore. This is on the forged crank block, don't know about the cast crank. |
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| Author: | CudaViking [ Thu Sep 17, 2009 4:46 pm ] |
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Quote: How many of you, suggesting removing the pistons from the bottom, have actually done it. I have tried it on several occasions, and always failed. The piston hits the main bearing web in the block, before clearing the bore. This is on the forged crank block, don't know about the cast crank. Amen to that, I finally got em off, and got the crank out and I could get two pistons/rods out the others are in there preeety good(Pretty gunked up with dirt and water and old oil.) The skirts hit the mains just like you say. Ill post some pics here in a sec when I get em loaded.Thanks for the help guys. Alex |
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| Author: | CudaViking [ Thu Sep 17, 2009 5:02 pm ] |
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http://i80.photobucket.com/albums/j183/ ... 0_0831.jpg http://i80.photobucket.com/albums/j183/ ... 0_0832.jpg http://i80.photobucket.com/albums/j183/ ... 0_0833.jpg |
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| Author: | cavisco [ Thu Sep 17, 2009 6:50 pm ] |
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Just wondering, CudaViking; what is the history of this engine? Scott M. |
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