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| | | | Joined: Apr 2009 Posts: 121 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2009 Posts: 121 | Hows it goin.My 261 has just one leak and i want it to be zero.its coming from the pushrod cover on the bottom.i think if there were more bolts to keep this on and they werent so spread apart like they are, i wouldnt be having this problem.has anyone experienced this also? Suggestions would be grand. Thanks
Danny | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | There are some threads on this subject. You will see a lot of advice on how to straighten the edges etc. If you get fed up, scrap the gasket and use RTV. If you use just RTV, you have to make sure to encircle the bolt holes. If it is done right, RTV will work perfectly. | | | | | Joined: Apr 2009 Posts: 431 Shop Shark | | Shop Shark Joined: Apr 2009 Posts: 431 | tnix - i'll soon be doing that operation, and was wondering if it'd be a good idea to use both gasket and a sealant like hi-temp rtv or the other usual sealants | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 |
Unless a side-cover is significantly warped/dented and/or the screw/bolt holes have been distorted inwards (you can punch them flat), I have never had a leaky side-cover after putting gasket-sealer on the side-cover&gasket and then using no sealer between the gasket&block(/head). If everything is flat, and you do not over-tighten the screws/bolts, you should be leak-free.
Tim
| | | | | Joined: Jan 2008 Posts: 4,961 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,961 | In addition to Tim's comment, GM put Phillips head or slotted screw driver heads on the cap screws for a reason. Don't tighten them tighter than you can twist a screw driver. | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | crewelge, Most people with 216/235/261 engines would, of course, choose to use slotted "stove bolts" in recognition of how these Chevrolet engines got their nickname.  Even though some later 235/261 engines used recessed-head hex bolts. Tim | | | | | Joined: Jan 2008 Posts: 4,961 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,961 | I always figured that the Phillips/ hex cap screws were GMC and the slotted were Chev, but no one ever told me for sure. I didn't know that that is where Chev got its nickname. The day wasn't a total waste. I learned something. | | |
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