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GenIIDak
Dodge Dakota
12/04/2001
11:41:01
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 Subject: Intake Manifold
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Message:
I own a 95 Dak with the 5.2L, and I know the intake manifold belly pan gasket needs to be replaced. I have already put in the 180 t-stat and Autolite 3923 spark plugs which have helped reduce the pinging, but the truck still pings going up hill or under moderate to heavy acceleration.
I have read solutions from other posts where people have installed the M1 2bbl intake manifold, Hughes Stage 1, or just replaced the gasket instead.
I was wondering, instead of replacing the gasket on the intake manifold can the belly pan be welded to the intake manifold for a permanent seal ?
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litl punisher
Dodge Dakota
12/04/2001
12:40:01
| RE: Intake Manifold
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Message:
Gasket are well known for blowing out but using some high temp silicone seems to hold well(ex. Right Stuff silicone) without using a gasket. I'm not sure aboutwelding it though
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Bill
Dodge Dakota
12/04/2001
18:42:30
| RE: Intake Manifold
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Message:
Pinging is not likely to be helped by doing what you have done and are planning to do. It is caused by low octane gas, or overly advanced ignition timing, or carbon build-up causing hot spots in the combustion chamber, or some combination of all those things, and several other possibilites exist as well. It is actually pre-ignition and can, in worst case, blow holes in pistons. First try a tank of high octane and see if that helps. Initial timing is not adjustable as with older cars, so I don't know what to tell you about that. Carbon build-up might be helped with some fuel additive. Good Luck...
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Dakaty
GenIII
12/04/2001
18:47:27
| RE: Intake Manifold
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I agree with Bill's suggestions. With regard to additives, Valvoline makes a "once a year" fuel system cleaner that (according to their label/picture) removes substantial carbon deposits. Costs about $10.
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Lesley
GenIII
12/04/2001
19:02:05
| RE: Intake Manifold
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Message:
I seem to recall Bernd's suggestion earlier about trickling a dixie cup of water slowly into the open throttle to clean it out. Beats spending $100.
97 3.9 V6 Sport Club Cab. Black. Auto 3.55
Quick D Intake, JBA Stainless headers
Autolite 3923s with Borg Warner Wires
Awaiting Installation: Borla catback, V8 R/T TB
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Wayne
Dodge Dakota
12/04/2001
20:16:06
| RE: Intake Manifold
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Message:
Can't be welded. Manifold is aluminum and the pan is some kind of steel. Hard to weld those two together. Use a good sealer and rough up the mating surfaces so that they will "hold" the sealer better. Go to www.fast4x4.net for instructions on how to do this job correctly.
I have done what you did to stop pinging plus I went to a 60/40 mixture of water to antifreeze mixture (I live in the south and can do this) and put in a bottle of Red Line Watter Wetter. If pinging persists, check TSB on this subject. It tells you how re-route spark plug wires to stop pinging. Sorry but I don't know the TSB #.
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Bill
Dodge Dakota
12/04/2001
22:34:58
| RE: Intake Manifold
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Message:
I have done the "trickle the water in" routine, you have to have the engine held well above idle to keep it running while doing this. And TRICKLE it in, a large slug of water can wreck your engine. Water doesn't compress like air. Whatever you use, make sure it won't damage catalytic convertor! I would try some gas tank additive before water, tho.
What you have only occurs under load, if it was spark plug wires it should happen all the time.
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bernd
*GenIII*
12/05/2001
00:15:09
| RE: Intake Manifold
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Message:
Wayne,
Actually, yes the aluminum can be welded (TIG Welded). You'll need an aluminum pan for this and someone who's been TIG welding for years to do it right.
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
14.93 @ 93.26mph
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GenIIDak
Dodge Dakota
12/05/2001
12:22:21
| RE: Intake Manifold
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Message:
Thanks for everyone's input ! I think I'll look into two solutions, Bernd's suggestion of TIG Welding or a combination of a good gasket (Right Stuff gasket maker and Hughes Engine Plenum Pan Gasket reinforcement kit) to fix the belly pan gasket for good.
The overall factor will be cost. From the sounds of it, I think going with the Right Stuff and the reinforcement kit is the cheaper of the two alternatives.
Wayne : I've already done the TSB on the spark plug wire reroute, and it did help a little abit. Good site (www.fast4x4.net), very informative with good pictures on the belly pan fix ! I noticed on one of your pictures that you had a bottle of the Right Stuff sitting on your tool box.
After the fix, I plan on using Napa's "Sea Foam" to clean out the carbon deposits (or Mopar CCC ).
I found a website that explains how this particular person went about repairing the belly pan gasket on his Ram (http://hometown.aol.com/gnkim3/manifold1.html).
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