jacob80 Posted February 25, 2009 Share Posted February 25, 2009 Hey guys, we're installing our crank and everytime we tap on the rear main cap to install it, the bearing falls out after a few taps when we're about to get it seated. Has anyone else had this problem? If so, what was your solution? Quote Link to comment Share on other sites More sharing options...
eec564 Posted February 25, 2009 Share Posted February 25, 2009 Which bearing? Quote Link to comment Share on other sites More sharing options...
islanddozer Posted February 25, 2009 Share Posted February 25, 2009 no but you should be useing engine assembly lube. put lots of lube between bearing and cap and press hard making sure the algnment notch sits into place. The lube should glue it into place. Quote Link to comment Share on other sites More sharing options...
josh817 Posted February 25, 2009 Share Posted February 25, 2009 My bearings snapped in and didn't fall out really. Do what islanddozer said and don't tap them in. Well... Tap them in just enough to that the threads on the bolts catch, then gradually tighten down. OR use the threaded hole at the top of the rear cap (also on the thrust bearing cap) which was meant for pulling them out with a tool that you screw into the hole. Instead of pulling it out, screw it down. This way you aren't hitting anything really. Quote Link to comment Share on other sites More sharing options...
dr_hunt Posted February 25, 2009 Share Posted February 25, 2009 no but you should be useing engine assembly lube. put lots of lube between bearing and cap and press hard making sure the algnment notch sits into place. The lube should glue it into place. No, definately do not do what is recommended above! It sounds as though your align bore is rather large. Install the cap without the bearing and use an inside mic or snap gauge and measre it and check with the FSM as to whether it is in spec or not. Sounds like it is on the large size. Quote Link to comment Share on other sites More sharing options...
josh817 Posted February 26, 2009 Share Posted February 26, 2009 No, definately do not do what is recommended above! It sounds as though your align bore is rather large. Install the cap without the bearing and use an inside mic or snap gauge and measre it and check with the FSM as to whether it is in spec or not. Sounds like it is on the large size. Yah I just thought about that and agree... Thats a formula for spinning a bearing. Quote Link to comment Share on other sites More sharing options...
Xnke Posted February 26, 2009 Share Posted February 26, 2009 Josh, why are both of your oil pick up bosses drilled? that's not an LD28 block is it? Quote Link to comment Share on other sites More sharing options...
josh817 Posted February 26, 2009 Share Posted February 26, 2009 Josh, why are both of your oil pick up bosses drilled? that's not an LD28 block is it? F54 casting. I was confused by that too when when hooking the pickup... Something wrong there? Quote Link to comment Share on other sites More sharing options...
Xnke Posted February 26, 2009 Share Posted February 26, 2009 Well, you might be sucking air instead of oil...depends on if you blocked off the front pickup hole, or the front pickup hole isn't drilled all the way. Sorry for the thread hijack, back to topic. All my bearings seated in the caps pretty firmly too. Didn't have any problems like you are describing. Quote Link to comment Share on other sites More sharing options...
islanddozer Posted February 26, 2009 Share Posted February 26, 2009 No, definately do not do what is recommended above! It sounds as though your align bore is rather large. Install the cap without the bearing and use an inside mic or snap gauge and measre it and check with the FSM as to whether it is in spec or not. Sounds like it is on the large size. Sure check it out but I have built over 20 of these motors and know enough to check tolerences before install. Sometimes I take it for granted that everyone would know this Quote Link to comment Share on other sites More sharing options...
jc052685 Posted March 2, 2009 Share Posted March 2, 2009 OH MY GOD!!!! Lube on the back side of the bearings? Yes do that please! Quote Link to comment Share on other sites More sharing options...
dr_hunt Posted March 2, 2009 Share Posted March 2, 2009 Sure check it out but I have built over 20 of these motors and know enough to check tolerences before install. Sometimes I take it for granted that everyone would know this You can have the right bearing clearance and still not have proper crush on the bearing which will cause the bearing to fail. But with an attitude like that I'm DONE with trying to help. Quote Link to comment Share on other sites More sharing options...
islanddozer Posted March 2, 2009 Share Posted March 2, 2009 You can have the right bearing clearance and still not have proper crush on the bearing which will cause the bearing to fail. But with an attitude like that I'm DONE with trying to help. Attitude ? What did I say to offend you ? Quote Link to comment Share on other sites More sharing options...
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