Cmi Headers/525 Efi Problems?
03-25-2009, 03:13 PM
#23
I'm getting a set repaired now from a 525 with 49 hours on it. The engine is being rebuilt now and don't want to trash it. Who would have the best price on a new set? Does stellings make a set for the merc heads? Doug
03-25-2009, 03:18 PM
#24
03-25-2009, 03:29 PM
#26
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Look for a space between the outer pipe and the cylinder head flange of about 3/4". The outer pipe is welded back to the inner pipe just short of the cylinder head flange. If the outer pipe is welded stright to the cylinder flange, (it's the old style), you can throw them away.
03-25-2009, 05:38 PM
#28
This is a common problem w/ the old style CMI Headers. We have probably thrown away 30 plus set because of this problem. Look to see if you have the latest updated style.
Look for a space between the outer pipe and the cylinder head flange of about 3/4". The outer pipe is welded back to the inner pipe just short of the cylinder head flange. If the outer pipe is welded stright to the cylinder flange, (it's the old style), you can throw them away.
Look for a space between the outer pipe and the cylinder head flange of about 3/4". The outer pipe is welded back to the inner pipe just short of the cylinder head flange. If the outer pipe is welded stright to the cylinder flange, (it's the old style), you can throw them away.
03-25-2009, 07:18 PM
#29
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yes they do make headers for the 525's
http://www.monstermarinestore.com/pr...=1211&incat=59
http://www.monstermarinestore.com/pr...=1211&incat=59
03-26-2009, 12:39 AM
#30
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Here is my solution to the CMI leaking problems....Stellings! I decided to go with Stellings simply because I have had them on other boats without any problems. I got this current boat in April and ran it this past season with the CMI headers all the while keeping my fingers crossed and constantly draining them as a precaution. I didn't have any problems with the CMIs, but I didn't want to keep using them due to their track record.
This past fall I ordered a set of Stellings headers and tailpipes from Benfield's (Stellings dealer) to replace the CMIs. We have just started the install, but we have not finished it yet. We got all of the old stuff removed and the new headers on before it started raining, but we still need to install the new tailpipes. I'll post some pictures when it is finished.
This past fall I ordered a set of Stellings headers and tailpipes from Benfield's (Stellings dealer) to replace the CMIs. We have just started the install, but we have not finished it yet. We got all of the old stuff removed and the new headers on before it started raining, but we still need to install the new tailpipes. I'll post some pictures when it is finished.
