87ComancheMJ Posted May 23, 2021 Share Posted May 23, 2021 Finally got around to getting an oil change with rotella, new filter, some mystery oil, and though why not do the valve cover gasket. WRONG. Found 3 broke bolts just sitting in there and the the back side is all split around the 2 bolts I couldn't really get a good look at. Unsure how to get those bolts out of the holes but guess it is time for a new cover and all new bolts. She does run way better thought with proper oil and a new gasket although still leaking bad. 🤦♂️ Link to comment Share on other sites More sharing options...
MiNi Beast Posted May 23, 2021 Share Posted May 23, 2021 Are they broke flush to head? If so drill and easy out them. Pull valve cover and maybe sticking out enough to get some vise grips on the bolt to turn out. Or perhaps a tack weld on bolt to get a hold of it and spin out. Some people over tighten the valve cover bolts and this be a result... Link to comment Share on other sites More sharing options...
JustEmptyEveryPocket Posted May 23, 2021 Share Posted May 23, 2021 1 hour ago, MiNi Beast said: tack weld on bolt to get a hold of it and spin out I would do something like this. Probably find a nut that fits over the broken bolt, then fill the cavity with weld. Immediately spin it off. Easy peasy. Link to comment Share on other sites More sharing options...
scaleless Posted May 23, 2021 Share Posted May 23, 2021 It might be fairly easy to drill out - the block is harder than the fastener - but you'll definitely have to repair the threads afterwards. If done correctly, welding a nut on will likely be the quicker and easier option. Link to comment Share on other sites More sharing options...
87ComancheMJ Posted May 23, 2021 Author Share Posted May 23, 2021 No they are broken down in there. Trying to undo the previous owners and they're junk. I went to undo the bolts and it spun with zero effort so I hand checked the rest and more were broke so they just got sat back in there and now it's my problem. Link to comment Share on other sites More sharing options...
scaleless Posted May 23, 2021 Share Posted May 23, 2021 Then I would try to just drill them out. Unless they replaced them with Grade 5 or 8 fasteners, it should be easy. Then helicoil the holes (or drill and tap them one size larger if you have the clearance for the head, I guess). Link to comment Share on other sites More sharing options...
AZJeff Posted May 23, 2021 Share Posted May 23, 2021 I would use helicoils. Having fasteners of multiple sizes attach the rocker cover would be annoying if it needs to be removed later. Fixing the screwed up holes will require drilling/tapping. Why not do it with Drill/tap that will allow the use of the standard fastener, which can be achieved via helicoil inserts. Those bolts are 1/4-20, by the way. Link to comment Share on other sites More sharing options...
87ComancheMJ Posted May 23, 2021 Author Share Posted May 23, 2021 I appreciate it all the feedback, gonna google around with all this information and go from there. Still a newbie and doing things I've never done before but I love this old truck Link to comment Share on other sites More sharing options...
cruiser54 Posted May 25, 2021 Share Posted May 25, 2021 WHICH bolts snapped off? Hopefully not the ones near the firewall......... Link to comment Share on other sites More sharing options...
87ComancheMJ Posted May 27, 2021 Author Share Posted May 27, 2021 On 5/25/2021 at 8:18 AM, cruiser54 said: WHICH bolts snapped off? Hopefully not the ones near the firewall......... One in the passenger center, driver front, and driver near the firewall. Think the second bolt from the one in back. Also found when it was done before they were rammed on there because there are a lot of cracks where the bolts go in and a nice crack in the back by the firewall. Link to comment Share on other sites More sharing options...
cruiser54 Posted May 27, 2021 Share Posted May 27, 2021 So, they're reachable. Link to comment Share on other sites More sharing options...
AZJeff Posted May 27, 2021 Share Posted May 27, 2021 2 hours ago, 87ComancheMJ said: One in the passenger center, driver front, and driver near the firewall. Think the second bolt from the one in back. Also found when it was done before they were rammed on there because there are a lot of cracks where the bolts go in and a nice crack in the back by the firewall. Elaborate on what you mean by “cracks where the bolts go in” You mean cracks in the valve cover, I presume? Link to comment Share on other sites More sharing options...
87ComancheMJ Posted May 28, 2021 Author Share Posted May 28, 2021 21 hours ago, AZJeff said: Elaborate on what you mean by “cracks where the bolts go in” You mean cracks in the valve cover, I presume? Where some of the bolts hold it down its cracked all around the bolt like it was way over tightened and up into the side of the cover itself is cracked in one spot. Going to find a non plastic replacement and get some new bolts and try to get the old broke ones out. Link to comment Share on other sites More sharing options...
russel730 Posted May 28, 2021 Share Posted May 28, 2021 13 hours ago, 87ComancheMJ said: Where some of the bolts hold it down its cracked all around the bolt like it was way over tightened and up into the side of the cover itself is cracked in one spot. Going to find a non plastic replacement and get some new bolts and try to get the old broke ones out. Good option is a 94+ aluminum valve cover. I had the same oil leak issue with the plastic cover. Once I traded it out for aluminum one off a '94 wrangler with the rubber felpro gasket it was gone. Link to comment Share on other sites More sharing options...
AZJeff Posted May 28, 2021 Share Posted May 28, 2021 A cracked valve cover won’t torque and seal correctly, and will continue to leak, even with a new gasket. getting a new metal valve cover is a good plan. I have an engine from a 2000XJ in my truck, and it uses a stamped steel cover with special grommets that prevent overtorquing the bolts and squishing the gasket too much. It’s pretty much leakproof with the new silicone gaskets. Link to comment Share on other sites More sharing options...
87ComancheMJ Posted July 4, 2021 Author Share Posted July 4, 2021 Sorry got very busy and haven't had time to check around. It has the 2.5 in it. Are there any specific year/model Jeep I can get a metal cover off of that will fit for this? Still new to doing my own work and the names of parts are not my strong suit but the two rubber hoses running off the top of the valve cover are also shot and need replacing. Edit: Crankcase Ventilation. Think I found the appropriate part on Napa https://www.napaonline.com/en/p/NDP7151365?partTypeName=Air+Intake+Ventilation+Hose&impressionRank=1&keywordInput=ccv+ventilation Link to comment Share on other sites More sharing options...
Pete M Posted July 4, 2021 Share Posted July 4, 2021 11 minutes ago, 87ComancheMJ said: Sorry got very busy and haven't had time to check around. It has the 2.5 in it. Are there any specific year/model Jeep I can get a metal cover off of that will fit for this? Still new to doing my own work and the names of parts are not my strong suit but the two rubber hoses running off the top of the valve cover are also shot and need replacing. any 94+ Jeep with the 2.5L (which sounds like a lot but it really only applies to the cherokee and wrangler). probably also the mid/late 90s Dakota with the 2.5 but that's just an assumption. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now