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View Poll Results: Rebuilt or new old stock?
Rebuilt 7 43.75%
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Old 10-07-2012, 09:37 PM   #1
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Engine question

It would appear that I need a new engine in my rv. It is the workhorse chassis with the 8.1l vortec. The options that I have come up with are a rebuilt with a 6 month or 6,000 mile warranty or a 2007 engine that is new with no warranty. The 2007 is from a batch of 7 that a guy got from Forest River on chassis. The rebuilt I do not know any history on. We only use our RV about 5 to 7 times a year for about 3,500 miles. My RV is. 2003 34' Holiday Rambler Vacationer with 19,000 miles.
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Old 10-07-2012, 09:41 PM   #2
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price difference? Any outfit thats going to provide a warranty will likely be an exchange hassle. So youll be out labor twice.
Im thinking $2500 for a complete low mileage engine would be reasonable. Cant even tell you what labor would be... may 10-12hrs plus parts.
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Old 10-07-2012, 09:45 PM   #3
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price difference? Any outfit thats going to provide a warranty will likely be an exchange hassle. So youll be out labor twice.
Im thinking $2500 for a complete low mileage engine would be reasonable. Cant even tell you what labor would be... may 10-12hrs plus parts.
Looking like it wii be $1,000 to $1,400 more for the new old stock.
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Old 10-07-2012, 09:55 PM   #4
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what is wrong with the old motor? Broken crank?
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Old 10-07-2012, 10:02 PM   #5
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what is wrong with the old motor? Broken crank?
Broken piston.
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Old 10-07-2012, 10:15 PM   #6
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Since I know nothing about these later model 8.1 Vortec's,,, I'd ask first what possibly caused the broken piston.. Is it a known problem with these engines ? If it is,,, I sure wouldn't buy another one with possibly the same defect. In that case, I'd go with the rebuilt,,, with after market parts...
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Old 10-08-2012, 03:36 PM   #7
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Broken piston.
what did it break from? A valve hitting it?
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Old 10-08-2012, 06:49 PM   #8
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what did it break from? A valve hitting it?
Don't know I am going to get a second opinion in the next couple of days.
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Old 10-08-2012, 07:04 PM   #9
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i would bet it was from intake leaking water into a cyl.and you know u can't compress liquid . seen it happen many times on GM engines .when u replace the engine i would replace the intake with after market .
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Old 10-08-2012, 09:54 PM   #10
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i would bet it was from intake leaking water into a cyl.and you know u can't compress liquid . seen it happen many times on GM engines .when u replace the engine i would replace the intake with after market .
I have the Banks intake and exhaust.
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Old 10-08-2012, 10:01 PM   #11
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I have the Banks intake and exhaust.
But that doesn't replace the intake manifold.
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Old 10-09-2012, 04:53 PM   #12
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i would bet it was from intake leaking water into a cyl.and you know u can't compress liquid . seen it happen many times on GM engines .when u replace the engine i would replace the intake with after market .
first Ive heard of this???? If the leak was that big (for hydro lock)... you would notice lots of white smoke.
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Old 10-09-2012, 05:18 PM   #13
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I just have the engine in my jeep rebuilt. A short time after it was installed I had a lot of blow by, pressure in the crankcase. It was under warrenty, the engine was torn down, two cracked pistons. Pistons came in a kit, pistons were made in India. The rebuilder covered under warrenty and I now have a good motor. It appears that a lot of parts are poor quality.
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Old 10-09-2012, 05:54 PM   #14
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Are these short blocks or complete engines ?
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