Re: Leaky china rail
[Re: 1mean340]
#2455671
02/22/18 04:01 PM
02/22/18 04:01 PM
|
Joined: Aug 2003
Posts: 43,292 Bend,OR USA
Cab_Burge
I Win
|
I Win
Joined: Aug 2003
Posts: 43,292
Bend,OR USA
|
Go to your local good auto parts store and see if they have any RTV that says "Adhesive sealer or Adhesive silicone on the label, if they do buy it and use a small thin bladed screw drivers to pack that silicone in the leaking area after cleaning it thoroughly with either laquer thinner or brake cleaner solution Make sure it is clean and dry before using the sealer
Last edited by Cab_Burge; 02/22/18 10:51 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
|
|
|
Re: Leaky china rail
[Re: 1mean340]
#2455674
02/22/18 04:05 PM
02/22/18 04:05 PM
|
Joined: Feb 2005
Posts: 20,197 PA.
pittsburghracer
"Little"John
|
"Little"John
Joined: Feb 2005
Posts: 20,197
PA.
|
I always test fit my intake on my block and measure how big of a bead of silicon I need. I have Permatex black silicon in the big tubes on my caucking gun so then I can lay down the needed bead. I also take a black magic marker and trace a line around the intake during my test fitting so I know exactly where to lay the bead.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
|
|
|
Re: Leaky china rail
[Re: 1mean340]
#2455739
02/22/18 06:29 PM
02/22/18 06:29 PM
|
Joined: Dec 2005
Posts: 11,692 Fulton County, PA
CMcAllister
Mr. Helpful
|
Mr. Helpful
Joined: Dec 2005
Posts: 11,692
Fulton County, PA
|
Cab's fix should be fine for a temporary fix. I haven't used a gasket on intake end rails for decades. Next time the intake comes off, put the side gaskets on, sit the clean intake on it and look at the gap to get an idea of what is needed. The silicon bead needs to be a bit thicker than the gap to get a squish effect. Use something with some body to it like the gray Permatex. If the gap is wide, multiple passes can be used to build height. Blend the ends up into the gaskets. I usually allow it to sit for a few minutes, before dropping the intake on it, to allow the silicone to skin and tighten up some so it doesn't just ooze out when compressed. Clean everything with lacquer thinner before assembly.
If the results don't match the theory, change the theory.
|
|
|
Re: Leaky china rail
[Re: 1mean340]
#2455761
02/22/18 07:09 PM
02/22/18 07:09 PM
|
Joined: Oct 2014
Posts: 104 Washington
weedburner
member
|
member
Joined: Oct 2014
Posts: 104
Washington
|
A shop vac plays heavily into my leak sealing methods I use a shop vac and stethoscope to locate the leak. I use a shop vac to draw cleaner into the leak. I use a shop vac to help dry out the leak. I use a shop vac to draw some sealer into the freshly cleaned leak. After removing the shop vac, smooth the outside without vacuum applied to seal any holes drawn by the vacuum. Let it cure overnite. To make the leak easier to hear, you can cover the shop vac with a couple heavy blankets to reduce it's noise. Another solution is to buy more hose and place the shop vac outside. Grant
Last edited by weedburner; 02/22/18 07:10 PM.
|
|
|
Re: Leaky china rail
[Re: 1mean340]
#2455921
02/23/18 12:58 AM
02/23/18 12:58 AM
|
Joined: Jan 2003
Posts: 8,035 Tulsa OK
Bad340fish
master
|
master
Joined: Jan 2003
Posts: 8,035
Tulsa OK
|
I agree the shop vac method is great, I have seen it used for all kinds of stuff, even changing drain plug gaskets while the engine is full of oil.
68 Barracuda Formula S 340
|
|
|
Re: Leaky china rail
[Re: 1mean340]
#2456205
02/23/18 03:59 PM
02/23/18 03:59 PM
|
Joined: Oct 2008
Posts: 370 Suffolk County, New York
1mean340
OP
enthusiast
|
OP
enthusiast
Joined: Oct 2008
Posts: 370
Suffolk County, New York
|
Thanks guys! it looks like it's seeping across the whole front of the china rail then dripping badly out from the corner down the head. I ordered new gaskets from Flatout with 2nd day air but I think I am going to give the shop vac idea in conjunction with what Cab said first. Might as well give it a shot, fingers crossed as I'll need all the time I can get this weekend to adjust the valves and continue trying to tune this FITECH 1200 on E85 to make it at least somewhat drivable.
Last edited by 1mean340; 02/23/18 03:59 PM.
|
|
|
Re: Leaky china rail
[Re: Cab_Burge]
#2456401
02/23/18 11:50 PM
02/23/18 11:50 PM
|
Joined: Oct 2011
Posts: 3,036 bean town ....Ca
WHITEDART
master
|
master
Joined: Oct 2011
Posts: 3,036
bean town ....Ca
|
I will probably get push back on this.. but the right stuff sucks.. install a healthy beat let it sit for a few days and cut it open with a razor blade it's full of hollow Pockets from the aerosol that used to push it out of the can.. I think it should only be used in a pinch because it dries very quickly.. however I have had numerous issues using the right stuff.. especially when trying to use a vacuum pump.. my Motors never leak oil only air.. I would tape everything up and use a heavy grade window silicone.. you can get it at your local hardware store.. and you apply it with a caulking gun.
Last edited by WHITEDART; 02/23/18 11:52 PM.
In the 8s N/A.with Brett miller W8's 5.07 at 133 at 2700lb
|
|
|
|
|