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Apr 26th, 2026 |
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#33073 06/21/2002 1:08 PM | Joined: May 2001 Posts: 14 Apprentice | | Apprentice Joined: May 2001 Posts: 14 | Do the bolts holding the intake and exhaust manifolds on need to be at a certain torque on a 1957 235 engine? If so, does anyone know what the torque specs are? | | |
#33074 06/21/2002 1:59 PM | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | Yes, they are supposed to be torqued. My shop manual is at home, I highly recommend you get one if you haven't already. The reality is that you can't get a socket on some of the bolts without a u-joint, therefor the torque wrench doesn't help.
Fred
52 3600
69 C-10
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#33075 06/22/2002 4:26 AM | | Anonymous Unregistered | | Anonymous Unregistered | Per shop manual section 6-48. Manifold center clamps 15-20 ft.lbs. Manifold end clamps 25-30 ft.lbs. | | |
#33076 06/22/2002 5:14 AM | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | One more trick that I do on these engines. When install the manifolds, put a bead of Ultra copper RTV on the manifold side of the gasket. They tend to warp and don't seal very well. Let the engine sit for 24 hours before starting to allow the sealant to cure.
Fred
52 3600
69 C-10
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#33077 06/22/2002 6:00 AM | | Anonymous Unregistered | | Anonymous Unregistered | Fred T is correct on the RTV. & Dont forget to use the intake to head rings. | | |
#33078 06/26/2002 5:34 PM | Joined: Feb 2002 Posts: 2,893 Socket Breaker | | Socket Breaker Joined: Feb 2002 Posts: 2,893 | Neat-O, my Pop started posting up here at last. Melvin, that's him... So the same truck he is asking questions about is the same truck I have been pestering ya'll about.  tinker tinker tinker before ya know it we may have it running again. | | |
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