| From | Message |
Four20
Dodge Dakota
JOIN HERE
9/14/2009
14:34:35
|
 Subject: sealants
IP: Logged
Message:
Ok not long ago I posted the thread 3.9 woes. I am beggining the process of putting the heads, intake and exhuast back together. What type of sealants are used to go with head gaskets, intake and exhuast? I know the bolts near water passages are needed sealant apllied, but what do I use? Also what options are there with locktite, and what should I use? Also the head gasket have two different mating surface material which side is what? Does it matter?
Thank you
|
kiuse
Dodge Dakota
JOIN HERE
9/15/2009
13:37:12
| RE: sealants
IP: Logged
Message:
i use regular caulk from home depot
|
Four20
Dodge Dakota
JOIN HERE
9/21/2009
22:42:15
| RE: sealants
IP: Logged
Message:
ok yall i got the engine reassembled everything went great on the reasembly. Now i have connected power to the truck turn it over and no run. Poo. now the trucks been sitting torn down since may. replaced head gaskets and up. Now im sure there is air in the fuel rail. What is the easiest way to bleed this air from the lines considering the valve seems to be the lowest point for the fuel rail making it useless for bleeding the air out. Do i need to disconnect the injectors to bleed them? Does it even matter? Ive gotta check for spark, but its late and dark.
|
Dealer
Dodge Dakota
JOIN HERE
9/21/2009
23:39:25
| RE: sealants
IP: Logged
Message:
I gave you $100.00 for your truck, take parts for truck on my lot.
|
Four20
Dodge Dakota
JOIN HERE
9/22/2009
00:23:22
| RE: sealants
IP: Logged
Message:
Ok that makes no sense, Lay off the booze.
|
J and J Auto
GenII
9/22/2009
03:26:34
| RE: sealants
IP: Logged
Message:
Most aftermarket head gaskets require no sealent
if they do it will be on a note in the kit
The factory steel gaskets should be sprayed with
hitack sealer alowed to dry for 1/2 hour than
instaled or you can buy the mopar sealer.
NO LOCTIGHT
NO SEALER ON HEAD BOLTS just some thread lube
a few drops of oil and run a cleaning tap in all
the holes and wire wheel or brush the bolts so
they are clean
black RTV silicon in all 4 corners where the intake
gasket meets the head gasket and the head gaskets
shold say top on them just be sure you put them
on the right sides check all holes and water
ports for alinement
no sealer on intake gaskets and take your time
with the intake use the pattern shown in a manual
first just snug than 4 foot pounds, than 8 than
12 repeating the same pattern each time than go
over them 2 more times a clicker torque wrench
works best
also cleaning tap in intake holes and just a
little oil on the threads or you can buy from
like arp bolts there special thead lube 1 tube
will do ya
About 3 years ago I had a guy who bought a 1976
dodge 4x4 with a rebuilt 400 in it and it was
running rough leaking antifrezee
What this guy did when he put the heads on was
to over load the head bolts with antiseze so much
so that it got inbetween the head and gasket and
was leaking everywhere a total desaster and
one hell of a mess to clean up
The fuel system requiers no bleeding just crank it
and it will fill the rails and be free of air
in 4 revolutions of the motor
Larry
J&J Auto
|
Four20
Dodge Dakota
JOIN HERE
9/22/2009
12:10:58
| RE: sealants
IP: Logged
Message:
Thank you,I did skip the locktite on the head bolts, well didnt use it at all. I did duhuhhh put my plug order on the dist wrong. still wont crank maybe i flooded it, but i will try again today.the head bolts were treated with du-pont moly powder and all threaded orfices had a tap ran thru them to ensure proper torque was applied.Everything was torqued and recheked according to chilton manual i think like 4 torque sequences on the intake and 3 on the heads. I will have to dbl chk all electrical connections to ensure everything is connected, but pretty sure it is. lots of pictures and notes were taken during disassembly of the engine.Now if i could just get it to run.
|
Four20
Dodge Dakota
JOIN HERE
9/22/2009
18:16:13
| RE: sealants
IP: Logged
Message:
ok yall i got it to run and all is well. except for the problem of the left side cat is cherry red. So the question is am i getting an excess of fuel through the exhaust or is that cat clogged up?
|
Four20
Dodge Dakota
JOIN HERE
9/22/2009
23:03:05
| RE: sealants
IP: Logged
Message:
ohh i forgot im showing error code p-0132 shorted o2 sensor or failed pcm. thing is it ran great until everything got to operating temperature. i didnt have this problem before , but you know i cant be sure i just know the skipping was not present when i parked it.
|
Four20
Dodge Dakota
JOIN HERE
9/24/2009
00:30:17
| RE: sealants
IP: Logged
Message:
ok i have checked it and ive found first that i need new cap and rotor, but i do have what seems to be stong spark top the plugs, but ive gotr to properly test them. Cyl 5 seems to be the main cause of the skip. The plug upon removal looked wet. almost looks like seepage around and out of the plug threads.the truck now idles like crap. whereas its first restart ran smoothly for 1.5 hr before road tested.in less than 3 miles the cat started glowing on the downstream side. this to me says its excess or unburnt fuel in the exhaust. Cyl 1 and 3 also seem to be intermitantly skippingfurther explaining the blowtorch like heat acumulating in the exhauston the left side.
Now i wonder if i just may have an excess amount of moisture in the fuel and lines. ran great for quite sometime so it makes some sense. Ill pull a sample from the rail to test that theory. the thing broke down with a full tank of fuel i hate to waste but it has been setting for 6 months. It still bothers me that i get no code for a misfire of a cyl, and again i re-iterate the fact of how good it was running before the road test.
I guess it comes down to a simple question of whether or not this a pcm or related component issue, and whether this issue can be diagnosed and repaired with the equipment, and literature accesible to the average person.
|
numlock
Dodge Dakota
JOIN HERE
9/24/2009
01:26:29
| RE: sealants
IP: Logged
Message:
The valve or valves are screwed up. Now you know what the problem is so stop going on and on and on.
Who did the valve Job? I guess that is why the heads were taken off.
|
J and J Auto
GenII
9/24/2009
02:24:31
| RE: sealants
IP: Logged
Message:
excesive fuel would make it run cold
lean will make it hot
take a look at the o2 sensor that came up bad
do a compression check this will tell you
if anything is wrong and go from there
posible bad injector on that cyl
Larry
J&J Auto
|
Four20
Dodge Dakota
JOIN HERE
9/24/2009
11:46:17
| RE: sealants
IP: Logged
Message:
Thanks larry. Numlock there are more reasons to remove the heads than bad valves. Mine were rmoved to remedy any other coolant leaks other than the main leak that was found in the intake. Not all of us are hard on our engines, my heads were checked and found to be in good shape and could be re-used as is.
I will run another comp check today.
Replace the cap and rotor
test fuel pressure
test fuel for water
|
Four20
Dodge Dakota
JOIN HERE
9/24/2009
17:02:03
| RE: sealants
IP: Logged
Message:
ok replaced cap and rotor. No change
plugs 2,4,6 look white pull any plug wire the engine runs rougher
plug 5 wet and black but pull wire from it and i get rougher running engine
plug 1 and 3 not white or black but pull wire from either and the engine has no change. I dont think those cylinders are even firing, but have good energy delivered thru the wireim gonna do some swapping to see if the problem follows the parts swapped
big question is do i need to replace the o2 sensor first .... im still getting code p0132. everyone i know says cut out the left cat to solve the problem but what to do with the o2 sensors? if the engine would run fine without em then why would i even need to change em?
|
withheld
Dodge Dakota
JOIN HERE
9/24/2009
17:44:42
| RE: sealants
IP: Logged
Message:
First thing you need to do is get that problem fixed. With those cylinders dumping raw fuel like that the pcm will lean the rest out to compensate. You could most likely burn the tops of the pistons.
|
Four20
Dodge Dakota
JOIN HERE
9/24/2009
17:53:39
| RE: sealants
IP: Logged
Message:
what is a lean condition ? too much fuel not enough air?
|
Toddhater
Dodge Dakota
JOIN HERE
9/24/2009
18:04:17
| RE: sealants
IP: Logged
Message:
Todd Bouton is a SH!T B@G
|
Four20
Dodge Dakota
JOIN HERE
9/24/2009
18:08:05
| RE: sealants
IP: Logged
Message:
Toddhater go hijack another thread! Dont razz anyone in my thread offering help. screw off get a life.
|
Toddhater
Dodge Dakota
JOIN HERE
9/24/2009
19:41:00
|  RE: sealants
IP: Logged
Message:
Todd Bouton is a SH!T B@G
|
Four20
Dodge Dakota
JOIN HERE
9/24/2009
23:58:40
| RE: sealants
IP: Logged
Message:
is it possible i have poor ground connections with the engine causing problems with the pcm or the sensors?
|
withheld
Dodge Dakota
JOIN HERE
9/25/2009
09:55:05
| RE: sealants
IP: Logged
Message:
Four20 I don't have enough time to read all your posts so I'll try my best to help in what time I have. The cyls. that are miss-firing try other plugs and then try a new plug on those wires lay it against the head or block and have someone crank it over. Make sure they are firing, If so compression test the cyls. any that read low squirt some oil into them and retest. Post all results, I see someone mentioned the 115 wire splice. Depending on the year of your truck it could be worth checking. I highly recommend not driving or running this truck to long or you could do some serious damage to the motor
|
| | P 1 Next Page>> |
