What is it? DP4B question

[bull]

I hate to ask another stupid question but why stop now, right?

What is this tall stem for on my Eddy dp4b intake?

Also, while we're talking about intakes, what would you use for sealant on the intake/valley pan? The guy at my engine shop recommended I omit the paper gaskets and use only Hylomar sealant on both sides of the valley pan around the intake ports and Permatex Copper RTV sealant under the front and back. He said the paper gaskets will just burn out. Sound ok?

[Nacho-RT74]

coil bracket monting provision, with the other one just right in front

[bull]

I have a guess before anyone replies. Is it just the second bolt hole for the coil bracket?

[bull]

Ah crap! You beat me by 43 seconds, Nacho. Thanks.

Any thoughts on the sealant?

[Nacho-RT74]

I use somekind of glue called locally "goma laca" but I can't recall the english therm for it. I know permatex make that stuff too... well I think the one I actually have... somewhere, is permatex.

It is on a brown bottle with a cotton made applicator on the cap. liquid is some really dark brown

[Ghoste]

No paper gaskets, a little sealant on the ends but otherwise just use the valley pan as is.  Some use a sealant of one type or another on them but I have had good luck just bolting them in dry.

[RD]

i use permatex around the intake ports and black rtv on valley pan hold downs and corners.  i also dab a little rtv on each intake bolt thread as they thread into the heads and can get oil seepage.

[Nacho-RT74]

this is what I'm making reference


I'm not into the RTV to this part since Gas melts the RTV and any silicon products. I have used though.

[RD]

that is good stuff nacho!

[bull]

I'm not into the RTV to this part since Gas melts the RTV and any silicon products. I have used though.

I've heard that too and that's why I was told to use the Hylomar.

[doctor4766]

This Wurth rtv silicone is an excellent product and it comes in a pressure pack so there's very little wastage which is good cos it certainly aint cheap.


http://www.wurth.co.uk/catalogue/pdfs/UK-CD_05_0295.pdf

[471_Magnum]

One of the nice things about the DP4B is the coil mounting. It is one of the only aftermarket intakes that has a coil mounting position that works with a Holley dual feed carb. With a stock wire harness, you will need to lengthen the coil leads.

Down side, like most aftermarket intakes, is that A/C compressor rear strut with not clear the #3 intake runner. Most people just dump the strut with no ill effects.

[RD]

the key to using RTV is to use it "JUST" on the valley pan hold downs and the corners where the heads meet the block (which are right next to the valley pan hold downs).  Use permatex or lion's head around the intake ports on both the heads and the intake itself.  hope that clears that up.

[Nacho-RT74]

well thats not the one I have, but bottle is pretty much similar and I'm pretty much sure the one I have is permatex brand. Making the search in spanish, found that one, so I guess is the same product I have ?

[RD]

well thats not the one I have, but bottle is pretty much similar and I'm pretty much sure the one I have is permatex brand. Making the search in spanish, found that one, so I guess is the same product I have ?

lion's head is actually a gasket shellac.. where the permatex is the gooey red sticky stuff

[bull]

No Hylomar endorsements? Well, I'm going to give the stuff a shot and see how it works.

[elacruze]

Hylomar here!

Hylomar is awesome stuff, but it isn't what I'd use on intake gaskets. Hylomar was originally developed by Rolls-Royce as a flange sealer for aircraft assemblies. It fills small gaps and is resistant to all chemicals, and flexible and easy to remove on disassembly.

I used to use it on the rubber intake seals on H-D engines because they get hard over time. Otherwise, I don't like it on intakes because if you do have any gaps, the vacuum pulses could (conceivably) pull it through allowing a leak. I have no specific incidents, it's just a feeling. I've used Hylomar on nearly every other gasket surface from seal housings to axle covers to transmission covers to valve covers.

For Chrysler steel shim intakes, I've always used 3M Threebond or equivalent (Yamabond, Honda case sealer, etc) It's gray and messy but seals perfectly, gets hard but not brittle, sticks like heck but will not leave pieces in your motor like RTV and cleans up on disassembly with only a little work.
For front and rear corner seals I like Permatex Super Gray RTV.

[Nacho-RT74]

well thats not the one I have, but bottle is pretty much similar and I'm pretty much sure the one I have is permatex brand. Making the search in spanish, found that one, so I guess is the same product I have ?

lion's head is actually a gasket shellac.. where the permatex is the gooey red sticky stuff

BUUUT my bottle is same size brown and cap... damn I can't recall right now LOL... will have to take a look LOL

[Al]

or Edelbrock Gaskacinch, if my spelling is correct

[Manifold]

X2 for the RTV on the ends and leave the rest dry. Only the pan as well - no paper gaskets for the ports.

[bull]

X2 for the RTV on the ends and leave the rest dry. Only the pan as well - no paper gaskets for the ports.

I'll probably go this route 'cause I like livin' on the edge. One other thing I just thought of; I painted the valley pan (all of the top) with a good, quality acrylic enamel. Is that going to cause any problems?

[charger2fast4u]

Does anyone have some assembly pictures as they put the valley pan, hold downs and intake manifold on? I need to replace the pan and reseal it up I'm getting that oil pool in the back of the valley pan. And would like some pics of where to apply sealer and where not to put any as I'm alittle confused on where to put it

[bill440rt]

No Hylomar endorsements? Well, I'm going to give the stuff a shot and see how it works.

Same here!
I've used it on rear ends, axle flanges, valve cover gaskets, water pumps, etc. No leaks. I simply bought the Permatex Hylomar stuff right at the local Pep Boys.

[bull]

No Hylomar endorsements? Well, I'm going to give the stuff a shot and see how it works.

Same here!
I've used it on rear ends, axle flanges, valve cover gaskets, water pumps, etc. No leaks. I simply bought the Permatex Hylomar stuff right at the local Pep Boys.

I got my tube of Hylomar at Baxter and it was inside a Permatex package. It was weird. Nothing on the tube said anything about Permatex and nothing on the package said anything about Hylomar.

Anyway, I went ahead and used a minimal amount of the stuff around the intake and crossover ports last night. I figured since some guys use nothing a tiny bit of Hylomar would be a little bit better than nothing.

[bill440rt]

Yep, a thin layer is all you need.
It's a lot thinner than the Permatex blue or copper gasket maker, which I've found to be garbage. The Hylomar stuff will ooze out very easily, leaving a very thin layer that seals tight.
I usually lay on a very thin bead, which I smooth out flat with my finger before installing the part.
Keep us posted, hopefully you have no leaks!