blown99 Posted December 22, 2010 Share Posted December 22, 2010 Looks like I have one with a bad cam coming in. This is a rear engine school bus 2006 vintage. I have yet to do a cam in one of these engines, so I was reading through the service manual. Our service manual shows the bedplate and crank need to be taken out to remove the cam. Going by the pics, there is a flange (the rear seal rides on this flange)on the crank that prevents the tech from sliding the cam out. Couldn't find anything in the service book that indicates that this flange can be removed. What do you guys usually do? Quote Link to comment Share on other sites More sharing options...
mchan68 Posted December 22, 2010 Share Posted December 22, 2010 There have been MANY threads on this topic covered if you do a search. The six bolts on the flange you speak of, are what I call (and what Ford unofficially calls) the "DO NOT FUCK WITH" bolts. You remove the flange, and you replace the crank as well or you end up creating a permanent oil leak. Perhaps it would be wise to quote a short or long block due to the cost involved. A REAR engine school bus with a 6.0L? Never heard or seen one before. Do you have pics? Quote Link to comment Share on other sites More sharing options...
Jim Warman Posted December 22, 2010 Share Posted December 22, 2010 Hven't done a 6.0 yet but I've done a couple of 6.4s.... You can pull the bed plate and find the "sweet spot" - this willl allow you to undo only two or three rod caps and lift the back end of the crank high enough to slip the cam gear past the rear crank hub. Personally, I wouldn't mess with those bolts.... I'm not sure if the engineers are right about the outcome - but I already have enough hobbies. Quote Link to comment Share on other sites More sharing options...
blown99 Posted December 23, 2010 Author Share Posted December 23, 2010 I contacted our tech central today to be sure. They say do not remove the bolts for the primary flange. This is an out of chassis procedure. Job pays 17.7 hrs to pull the engine, r&r the cam and lifters, pull the heads, and front/rear covers and reinstall. Hope my ass is in high gear for the day. Quote Link to comment Share on other sites More sharing options...
Brad Clayton Posted December 23, 2010 Share Posted December 23, 2010 Quote: Hope I'm on my ass is in high gear for the day Here is you and the devil on your shoulder. Only way to get it done. Quote Link to comment Share on other sites More sharing options...
Gary_P Posted December 28, 2010 Share Posted December 28, 2010 17.7 hours? sounds more like a 40.7 hour repair to me Quote Link to comment Share on other sites More sharing options...
Jim Warman Posted December 28, 2010 Share Posted December 28, 2010 17.7 hours? sounds more like a 40.7 hour repair to me +1... the cam is about the first thing that goes into the block.... and about the last thing to come out. Quote Link to comment Share on other sites More sharing options...
cheldmann Posted December 29, 2010 Share Posted December 29, 2010 im sure everyone will disagree with me here but i have done one and 2 other guys have each done one by removing the flange with no problems and happy customers Quote Link to comment Share on other sites More sharing options...
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