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killerdakota@
Dodge Dakota
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2/26/2004
21:10:10
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 Subject: double timing chain
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Message:
hi i am looking where to buy a double time chain set for my 3.9 if any one knows would be great before i put in my new cam thanks in advance
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gen1dak
Dodge Dakota
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2/27/2004
00:06:45
|  RE: double timing chain
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Message:
It's going to be the same as the sets for the 5.2/5.9, if the V6 isn't listed specifically. I got a fine double chain, true roller set from Summit Racing...ordered through the online catalog. Best price I could find.
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swilliamson
Dodge Dakota
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2/27/2004
00:58:40
| RE: double timing chain
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When you order from summit racing and others, do you still need the tensioner, or do they make aftermarket chain sets that do not need the tensioner at all? Also, anyone seen a direct drive timing set for the 3.9l?
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b1llyw
GenII
2/27/2004
08:36:16
| RE: double timing chain
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Message:
The 3.9 takes the same timing set as the 318/360. Comp Cams has some nice sets. 2103 is the basic, 3103 is the premium set. Both are reasonable.
Bill White - KRC Performance
'95 CC 4x2, SLT - 408 is done, truck isn't
'03 Ram 1500 QC 4x4 Hemi Off-Road
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capone
Dodge Dakota
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2/27/2004
11:53:02
| RE: double timing chain
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So, if I got a double timing chain, what exactly would it do for me? What is the difference between the basic and premium comp optons?
Thanks
-capone
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J and J Auto
GenII
2/27/2004
14:41:40
| RE: double timing chain
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Message:
Yes you can and should also install the tensioner
The roller chain has less resistance to turning
and will actualy give you about 5 hp
3.9, 5.2 and 5.9 all the same chain
Larry
J&J Auto
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FazDak
GenII
2/27/2004
19:32:37
| RE: double timing chain
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Message:
Sorry to dissagree here Larry but you dont need the tensioner on any good aftermarket double roller.
If a 426 Hemi came with a double roller and no tensioner theres no way in the world a 239 has to have a tensioner with a quality double roller.
I know the local Dodge dealer's shop forman and he tells me that the tensioner is only a fix for weak (stock) and quite chain setups. He says any HP doulble roller will last as long as you need it to, stay quite enough and true.
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gen1dak
Dodge Dakota
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2/27/2004
20:30:20
| RE: double timing chain
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Message:
NONE of the A-engines came with tensioners until sometime in the 90's...even the ones with the crappy plastic teeth. Go figure. Actually, it's intended to maintain accurate timing within the needs of the MPI system....with the aforementioned crappy stock set.
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J and J Auto
GenII
2/27/2004
23:00:00
| RE: double timing chain
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Message:
When the V6 blocks were machined the cam bore
was droped .050 closer to the crank for some
ungodly reason and any chain that streachs even
a little will end up rattling
Put a new chain in a V6 silent or roller and
you will see the slop they have right from the
start with no wear, there are some chains made
.050 shorter but they cost
another thing here is its more sproket wear than
chain streach
Unless we are talking about a very good quility
chain costing like $300 like the dyna gear chain
than yes
But something like the cloyes, mopar which is
manufactured by cloyes, summit chains and a few
others that are just good rollers not top of
the line they will in time develope the rattle
I have seen it happen quite a few times
The stock and silent chains will develop the
rattle starting as early aas 10,000 miles a
double roller will develope the same rattle
anywhere from 25,000 to 50,000 yes it takes
longer but still occurs.
Larry
J&J Auto
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99DAK
Dodge Dakota
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2/28/2004
00:45:00
| RE: double timing chain
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Message:
I can testify to that. I installed an Edelbrock set and test fitted it without the tensioner to see if I could leave it out - no way, too much slack.
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FazDak
GenII
2/28/2004
21:00:11
| RE: double timing chain
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Message:
I put a MP chain on my 94 when I joined DD.com and much abuse and N2O later I have no noise, I shortly there after put one on my 96 for work that I do no less then 1k a week and still no noise.
"V6 blocks were machined the cam bore was droped .050 closer to the crank" If thats the case why are 5.2 and 3.9 pushrods interchangable?
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gen1dak
Dodge Dakota
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2/29/2004
00:18:02
| RE: double timing chain
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Message:
News to me. I just put my Summit roller on and it was so tight I could barely get it to go on.
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