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96dak
Dodge Dakota
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9/25/2005
15:44:50
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 Subject: non-interference?
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Message:
ive read a number of things about the 3.9, but im curious as all seem to be conflicting...is it a intereference type or not? if the chain breaks is it gonna hit the valves?
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schmidtmike
Dodge Dakota
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9/25/2005
20:34:22
| RE: non-interference?
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Message:
The Pre-Mag V6's have such low compression that I think they don't interfere in a stock setup. The Mag V6's (92'-on) have fast burn heads and higher compression, so I think there is a possibility of bending valves if the chain breaks. But why go through the trouble of realigning everything if it does break? Preventative maintenance, my man.
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James F.
Dodge Dakota
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9/26/2005
11:53:53
| RE: non-interference?
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Message:
I can answer that. Yes, Yes, Yes. Timing chain broke at start-up on my 3.9 v6 99 and it bent all the valves in 1-3-5 as well as the rods and the rod on #6. I replaced all the valves and rods. I was lucky it just nicked the piston and did not gouge a hole. This job is a lot easier than my old 83 Pontiac Gran Prix.
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