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jgreen
Dodge Dakota
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1/17/2008
16:42:40
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 Subject: cost to replace worn rings
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Can anyone give me a ballpark estimate on having worn rings replaced on a 1997 318. Ive got a major blow-by problem and cant figure it out. Im going to have to have someone look at it but want to make sure Im not getting ripped off on price.
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.boB
Dodge Dakota
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1/17/2008
17:58:22
| RE: cost to replace worn rings
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That's a big job. Requires removal of the pistons, and honing of the bore. That's a lot of labor. Figure 15 hours at $75 an hour. If the engine is that worn, you should really consider a rebuild. It would probably be cheaper.
I'v not priced a Dodge, but in the Ford world it's generally cheaper to get a quality crate motor than it is to rebuild an old one.
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OBIO3
Dodge Dakota
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1/17/2008
18:51:52
| RE: cost to replace worn rings
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Crate engine is the way to go. If your rings are that bad the rest of the internal parts have issues also. some major.Save yourself a heart breaker. Do it right or dump it
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jgreen
Dodge Dakota
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1/17/2008
20:10:56
| RE: cost to replace worn rings
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If im losing alot of oil due to blow by, could there be another problem that may be cheaper and easier to fix?
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Stan
Dodge Dakota
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1/17/2008
20:44:47
| RE: cost to replace worn rings
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j, who told you it was rings? The reason I ask is, it's more likely that valve guide seals would wear first. I have a 97 and I've rebuilt the heads once but the rings are fine. It still runs like new and I base that on the compression test, leak down test and feel in my behind test.
It is possible to do a ring job with the engine in the truck. I think it would be too costly to pay someone else to do it but a competent shade tree mechanic should be able to do it. This is no substitute for a proper rebuild but it will get you by for a surprisingly long time.
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dakota49
Dodge Dakota
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1/17/2008
23:41:17
| RE: cost to replace worn rings
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jgreen, you didn't say how many miles are on the truck, but if you have any broken rings, it will make it have a lot of blow-by. I would do it myself and see what it looks like. If the rings don't look bad, I would suspect the heads, so you could have a new set of valve seals installed, along with a valve job, and the rings, and it should run a lot better. If you do it your self, check the bearings, if they look bad I would replace them as well.
Good Luck
Dakota49
1988 3.9 4X4 5speed
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shadetree
Dodge Dakota
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1/18/2008
07:26:52
| RE: cost to replace worn rings
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jgreen a leakdown test will tell you where you problem is. I would suggest starting there before you decided on what to do. We just installed a magnum 5.9 remaned engine at work and with the old on for a core the total bill including labor and all was around $2200 1800 for the engine and 400 to remove the old and install the new engine.
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jjj
Dodge Dakota
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1/19/2008
09:35:18
| RE: cost to replace worn rings
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Are you sure it is blowby and not consumption???
Have you checked the intake manifold yet? There or the valve seals are usually the most common.
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jgreen
Dodge Dakota
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1/30/2008
20:56:06
| RE: cost to replace worn rings
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Intake manifold was replace. How can you tell if valve seals need to be replaced?
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