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Opinions needed....
by
boosted_diesel_84
on 13 Dec, 2008 10:54
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ok, some of u have seen my build thread, so i will just post a link to it so u have an idea on what all was done,
http://www.vwdiesel.net/phpBB/viewtopic.php?t=15461 but when i make boost, its building up a lot of pressure in my cooling system and overflowing out the surge bottle, car is not overheating, and it only seems to do it when i build boost, i have correct 3 notch headgasket and ARP studs torqued to 80 ft. lbs, just as card that came with it said torqued in sequence. after about 200 miles i retorqued them to 80, and they had not changed at all,
my question is, should i tighten them just a little more? :?:
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#1
by
theman53
on 13 Dec, 2008 11:30
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I went for cake is good. Call John over there at Air cooled engines plus as I think he was your machinist and see what he recommends. He told me not to put studs in unless I was going to run lots of boost daily. He also said that to make sure to retorque them which you said you did, but maybe as soon as it got hot the first time as the studs are way better than the gasket. I don't know I am just guessing.
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#2
by
boosted_diesel_84
on 13 Dec, 2008 11:45
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yea, i was going to, but he is out of town all week at the PRI show, and i didnt really want to wait. because i have to drive 180 miles a day round trip to work, and i hate putting the miles on my A6 quattro, and this is the reason i built my diesel. it just really kind of sucks, i put in so much time, work, money and tried to do it right, then i have problems like this. :x
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#3
by
53 willys
on 13 Dec, 2008 11:46
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your headgasket is BLOWN!
I voted NO.....I just went through this same problem!!!!
your fiber headgasket is GONE if your pressurizing the coolant system....mine NEVER overheated either..just keep burping coolant out the bottle.
I TQed my studs all the way to 100ftlbs and it did nothing for me...the gasket was blown in atleast 2 spots..but it looked like it may have been more like 4-5 leaks!
you waited way to long for a retorque! just like me.
if you wanted to retorque them you should have never drove it until you warmed the engine up with NO COOLANT pressure(no cap) and then let it fully cool down...then retorque.
that sucks man!! I totally know how you feel..
http://www.vwdiesel.net/phpBB/viewtopic.php?t=16090&highlight=here is my bad luck beginning...and me slowly realizing my HG was blown ON MY TEST DRIVE!!!!!! :cry:
http://www.vwdiesel.net/phpBB/viewtopic.php?t=16090&postdays=0&postorder=asc&start=105
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#4
by
boosted_diesel_84
on 13 Dec, 2008 11:59
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well the thing is, i had an 82 rabbit diesel with a blown head gasket, rad would stay cool, never even get warm, but it would just blow all the coolant out within a few minutes or running,
on the other hand, the motor in question, i drove 30 highway miles, and it lost such a small amount that it is just under the full line, and i have heat, and my rad is at the right temp, thats y i think the studs might just need 5-10 more ft. lbs cause it only happens under boost. plus ARP doesnt make studs for diesels, they are made for the gassers, which have no where near the cylinder pressure of a diesel, so maybe that 80 ft. lbs is fine in a gasser but a diesel needs a little more?
i am just trying to convince myself that i wont need to do the inevetable. haha. this sucks.
SO any Ohio guys wanna come to tiffin and have a "lets change jacks headgasket party" there will be beer and maybe strippers. haha
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#5
by
53 willys
on 13 Dec, 2008 12:16
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you can try the reTQ...but I dont think it will help and if it does it will only help for a little while....I drove mine for a full tank of diesel before I finally believed it myself...I kept thinking/hoping/wanting it to be something else...
thats why I was willing to pay $140 for my custom MLS gasket from gaskets-to-go(gasketstogo.com) I dont want to worry about HG problems every time I boost........
at this point I would say you can try the reTQ..but I think it is really just a waste of time :oops:
sorry for your troubles dude....sucks
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#6
by
Smokey Eddy
on 13 Dec, 2008 13:10
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I'm going to 100ft/lbs on my ARP's just because of all the problems you've had to suffer.
If you actually think about how much torque is on the stretch bolts when you turn them the extra rotations its wayyyyyy above 100ft/lbs.
You aren't going to strip the block out (i don't think?) and it's really not difficult to take the cam cover off and turn them.
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#7
by
53 willys
on 13 Dec, 2008 13:18
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I'm going to 100ft/lbs on my ARP's just because of all the problems you've had to suffer.
If you actually think about how much torque is on the stretch bolts when you turn them the extra rotations its wayyyyyy above 100ft/lbs.
I think Zukgod1 went to 95ftlbs on his AAZ MLS gasket...he has been in some pretty high boost numbers with his and the only problem he had was turbos shaft breakage..not HG failure. I'm gonna tq mine(when I get it) to 95-100ftlbs aswell.
I dont like the fiber gasket AT ALL if you wanna reliable DD with higher boost numbers I would get a MLS...
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#8
by
Smokey Eddy
on 13 Dec, 2008 13:24
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Yeah i have an Erling (earling?) metal HG for an AAZ and a spare cheap probably useless fibre one i got for 12$ from prothe. i'll just keep in the trunk as a spare? I dunno
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#9
by
boosted_diesel_84
on 13 Dec, 2008 14:07
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Sooooo.... any Ohio guys wanna come to tiffin and have a "lets change jacks headgasket party" there will be beer and maybe strippers. haha. the party has already started, i am tearing into it right now.
who on here was having the MLS gaskets made? wasnt there someting about a group buy? i want one now, 3 notch. let me know. thanks!!
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#10
by
53 willys
on 13 Dec, 2008 14:43
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who on here was having the MLS gaskets made? wasnt there someting about a group buy? i want one now, 3 notch. let me know. thanks!!
that was me...
I did not have time to wait for everybody to get the cash together for a Group buy so I just sent it to him....... you will be able to just call gasketstogo and order one now that I have sent the templated gasket in to him.(note my template gasket has extra cooling holes like the AAZ block and head....
http://www.gasketstogo.com/
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#11
by
Luckypabst
on 13 Dec, 2008 15:16
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Food for thought - that torque spec is based on reaching 75% of the fastener yield. An additional 20 ft-lbs brings it to what? 90%? 95%? Who knows for sure, other than the ARP engineers. I'm not a gambling man and why I voted "no". If you need more fastener preload, upgrade to the 220k studs and torque accordingly.
Chris
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#12
by
boosted_diesel_84
on 13 Dec, 2008 15:30
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you will be able to just call gasketstogo and order one now that I have sent the templated gasket in to him.(note my template gasket has extra cooling holes like the AAZ block and head....
http://www.gasketstogo.com/
do i have to modify anything to make it work, since your template gasket had the extra cooling holes? also, is it available in the 3 notch style? and how long will it take?
Thanks!
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#13
by
53 willys
on 13 Dec, 2008 17:18
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Food for thought - that torque spec is based on reaching 75% of the fastener yield. An additional 20 ft-lbs brings it to what? 90%? 95%? Who knows for sure, other than the ARP engineers. I'm not a gambling man and why I voted "no". If you need more fastener preload, upgrade to the 220k studs and torque accordingly.
Chris
I'm not saying over torquing the studs is a good practice..but I do know LOTS of the high HP cummins trucks have over torqued studs and headbolts.,,with pretty good success rates..
instead of over torquing the studs just get a MLS gasket and call it good...I think the real enemy is the fiber gasket...my.02
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#14
by
53 willys
on 13 Dec, 2008 17:25
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you will be able to just call gasketstogo and order one now that I have sent the templated gasket in to him.(note my template gasket has extra cooling holes like the AAZ block and head....
http://www.gasketstogo.com/
do i have to modify anything to make it work, since your template gasket had the extra cooling holes? also, is it available in the 3 notch style? and how long will it take?
Thanks!
you might be able to run the custom MLS gasket without drilling holes in the head and block..but why not drill for the extra cooling and vapor
it's REAL easy to do and a worth while mod IMHO...
yes you can get the gasket in a 3 notch size..that's what I ordered..a 3 notch and a 2 notch.
they wont be done for 1-2 more weeks tho...
turnaround time now that he has/will have made them before is claimed to be 7-10 days....since mine was the first VW diesel he has done I am on my 2 week of waiting since you got my gasket...and 1.5 weeks worth of shipping(protesters closed airport so that's why this was so long)
if you wanna run high boost daily then I would say the MLS should be worth the wait....
download "skype" from the gasket to go site and call the owner "john" he is a cool guy and really easy to talk to and deal with.