The manifolds are brand new so they won't have to clean them up much. Cat mani-seal is pretty good stuff, we use it on all cat manifolds with no problems. newer cat (C15) manifolds seam to be too sloppy on the slip joint anyway, I remember banging them together with a hammer years ago but now they slide together by hand but leak if you dont put mani-seal on them, I have had heaps of new ones apart to fix manifold leaks even the ones with that wrap sh#t on the joins still leak.
Cat diesel power!!!!
Discussion in 'Trucks [ Eighteen Wheelers ]' started by 550hpW900L, Nov 12, 2008.
Page 32 of 48
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DDS
I could use your help for my ECM, for my newly modified rebuilt 3406E/2WS/1MM/7CZ -
The reason for putting the sealer on the male section only, is that you will not push a blob of sealer into the joint on the inside of the manifold to break away at a later time and go through the turbo. The reason for the oil on the female section is to keep it from cementing the slip joint together. This material is used as a filler in the joint only.
CAT's manifolds have gotten sloppy at the joints...........this makes even a new one hard to seal at times. -
Thanks I'll give it a try when it warms up. -
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i have tried both the 5232 and 6999 and they both r trying 2 break the back of the seat how it pushes the truck empty, also loaded on flats but does nothing on the hills 4 me, the 6999 drinks the fuel like a leaky cup
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PDI and Pittsburgh Power are selling the same manifold. Full Tilt will still port and coat your manifold, but if you want to stay with the stock E model manifold they try to get you to buy the PDI manifold, which they sell also. -
Someone should make a real test with over 700 hp engine on a dyno, same dyno same day with stock and b manifold without any other changes and full rpm range 1000-2300. -
The power difference was a 150 hp with the bigger manifold and turbo housing. Along with considerably lower intake manifold pressure for the higher horsepower.
When CAT came out with the smaller exhaust ports this was done for the 3406C motors in the early 90's and continued into the E models and C-15/C-16/C-18. It was strictly done for emissions. CAT uses the B model manifolds and similar designs today on heavy equipment and military truck engines with the smaller exhaust port heads. They even have a special sleeve assembly to install in the head similar to the E models. The later design C-18 manifold will flow the same as the B model on a bench, but does have a slightly smaller cross section area in the turbo flange area, for more energy to drive the turbo.pichu and pullingtrucker Thank this.
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