Just a real quick question about an exhaust elbow I recently purchased for my repower. This is the only aftermarket 90 degree exhaust mixing elbow available for the Perkins 4.108. The threaded female end connects to a flange mounted to the manifold and the smooth end connects to a rubber marine exhaust hose. The elbow is constructed of cast iron.Here is my dilemma: The smooth male end is 2 3/8 inches outer diameter and my rubber exhaust hose is 2 1/2 inches inner diameter. This gives me 1/8 inch wiggle space; and my exhaust hose is quite rigid and cannot be compressed enough with hose clamps to tightly fit around the 2 3/8 inch elbow. If I go any tighter, I will most likely end up breaking the hose clamp.I posted pics below.
[img]/media/kunena/attachments/vb/700880=29402-Exhaust Elbow 1.jpg[/img]
[img]/media/kunena/attachments/vb/700880=29401-Exhaust Elbow 2.jpg[/img]I am faced with two options. I can either cut the 2 3/8 inch piece off the exhaust mixing elbow and weld a 2 1/2 inch OD cast iron pipe onto the elbow or use something to build it up 1/8 inch. I thought about building it up with JB Weld, but I have concerns about it withstanding (on a long term basis) the vibration of my Diesel engine. Besides, my mechanic refuses to install an elbow built up with JB Weld.Does anyone have suggestions for increasing the outer diameter of the exhaust elbow by 1/8 inch?Thanks in advance...
[img]/media/kunena/attachments/vb/700880=29402-Exhaust Elbow 1.jpg[/img]
[img]/media/kunena/attachments/vb/700880=29401-Exhaust Elbow 2.jpg[/img]I am faced with two options. I can either cut the 2 3/8 inch piece off the exhaust mixing elbow and weld a 2 1/2 inch OD cast iron pipe onto the elbow or use something to build it up 1/8 inch. I thought about building it up with JB Weld, but I have concerns about it withstanding (on a long term basis) the vibration of my Diesel engine. Besides, my mechanic refuses to install an elbow built up with JB Weld.Does anyone have suggestions for increasing the outer diameter of the exhaust elbow by 1/8 inch?Thanks in advance...
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