head gaskets and arp's

[dmax711]

yes x2 super diesel..worked about 10 hours on it, heads are off every nut and bolt bagged and labeled. back at it tomm a.m:thumb:

 

[JRODS*LB7]

Possible and been done, however the stock turbo is seriously over boosting at this stage. It wont last long at that level (stress on the bearing surfaces and shaft). On the LB7 the regulator on the cp3 as well as the suction pump on the back of it will need modding to take full advantage of the pumps capabilities if there not already (regardless of lift pump capacity & capabilities which is need too if not already added).

Thanks a bunch for the info man i appreciate it!:hug:

 

[Chad]

So far on every head stud/gasket job that I've done on a DMax I can confidently say that the water pump had something to do with it. On every one the truck either came in the door with a nice new water pump on it, or we think we finally got one without the water pump being the cause and finish up and look for leaks only to find the water pump leaking. My theory is that guys run them with leaking water pumps long enough to run them low on coolant, air in the system collects at the rear of the passenger side, creates a hot spot and allows the coolant to boil and #7 cylinder is always the one to blow.

With small twins, big twins; small, medium, and large singles with 40 to 60+ PSI of boost and 600-800 rwhp we have broken pistons, bent rods, and broken rods all without ever blowing a stock head gasket with stock head bolts. IMO there is not a hp or boost number that the stock internals can handle that requires head studs. Furthermore to do a proper head stud/gasket job (without full engine teardown for torque plate honing and cleaning up the deck) means pulling the heads, having them flatness checked and/or milled, setting valve depth, having them pressure checked, and reinstalling with new gaskets and studs - this is the same process and same cost if you do it as a preventative or wait until it blows one (if it ever does).

This probably the single best, at least most concise, answer to this never ending debate I've read on any forum to date.

 

[dmax711]

motor 80% back together, just have wiring harness to hook up, all the accesorys and brackets. hopefully the rest goes smoothly!lease:

 

[rcr1978]

Well I have a 04 with only 69,000 no leaky water pump, coolant never got lower than the seam on the coolant bottle. And my head gaskets are toast so I'm thinking it's just bad luck for some to

 

[dmax711]

trucks all done! never has ran smoother, no more coolant blowing outta the overflow! took 28 hours all said and done.:coolspot:

 

[Evan@InglewoodTrans]

Now go beat it

 

[dmax711]

after it proves itself again! thanks for the help evan!:hug:

 

[custom8726]

trucks all done! never has ran smoother, no more coolant blowing outta the overflow! took 28 hours all said and done.:coolspot:

Nice Job :thumb: This is now (finally) on the short list of things for me to do this month

 

[Evan@InglewoodTrans]

after it proves itself again! thanks for the help evan!:hug:

No problem man anytime.

 

[dmax711]

I can honestly say now that ive done it is the most time consuming thing was lubeing and tourqing all the studs, check then re checking, and adjusting valves..

 

[cole30]

I can honestly say now that ive done it is the most time consuming thing was lubeing and tourqing all the studs, check then re checking, and adjusting valves..

Did all the valves stay seated at .12 first time of torquing?

 

[dmax711]

didnt do .12. i did .11 and some were a lil loose after a few rotations. probally checked each one 3 times till we were satisfied.

 

[Noreaster]

My buddies 05 blew the gasket at #7


scored the cylinder & nicked the piston up in a couple spots too

 

[dmax711]

man that sucks.. i was lucky mine looked great concidering the beating ive put it through.

 

[Bustedknuckles]

trucks all done! never has ran smoother, no more coolant blowing outta the overflow! took 28 hours all said and done.:coolspot:

Slackers gonna slack! I had mine off in 5 and on in ~12..... But I had friends helping lol.
Good to hear yours turned out good, I had a valve not seating and had to pull the pass side head again. FML

 

[dmax711]

haha i took my time as it was my first time doing it. i cleaned EVERYTHING and relocated and re-routed a few things putting it back together. And that sucks man, i was holding my breath about my heads as well...

 

[alexjohnjo50]

hey guys just got an lly and how do i tell if my head gasket is going out or not?

 

[JDPlowboy]

Gets hot, can't keep coolant in it, runs rough, heater doesn't work... There is a number of symptoms that is why it's so hard sometimes to figure out If they are blown or not.


2011 Ferd F-teenthousand

 

[dmax711]

Gets hot, can't keep coolant in it, runs rough, heater doesn't work... There is a number of symptoms that is why it's so hard sometimes to figure out If they are blown or not.


2011 Ferd F-teenthousand

x2, uppeer coolant hose is hard from pressure in the coolant system..which blows coolant out the overflow