qwk_snd Posted March 19, 2013 Report Share Posted March 19, 2013 My poor 510 has been sitting in the corner of my garage collecting dust for a few months now. I haven't been worried about it over the winter, but now that the weather is getting nice out, I'd like to get her fixed and on the road again. She blew the head gasket just shortly after I bought her, so I pulled the head, slapped on a new gasket, put it back together and hoped that the head wasn't warped. Well, she started up and purred like a kitten while I let her idle for 15 mins or so. She maintained a temp of about 180 the entire 15 minutes, so I hopped in to take her for a drive and before I even got to the end of my driveway the temp had shot up to 240 or so and started running like ass again, so I'm assuming the head was warped and that it blew the gasket again... It's got an L16 motor with 240z flat top pistons, U67 2.0l Ed Hale ported head with cam, so I'm REALLY hoping that the head isn't trashed. Do you guys think it's salvageable? What steps should I take for me to take to get her fixed? Do I need to have the head machined? Can I even afford to take any material off of the head with it having flat top pistons? What do you guys think?! Quote Link to comment
flatcat19 Posted March 19, 2013 Report Share Posted March 19, 2013 Shave it and use 2 head gaskets. Cometec makes thicker gaskets too. Car looks sweet. Get that sumabitch runnin!!! Quote Link to comment
qwk_snd Posted March 19, 2013 Author Report Share Posted March 19, 2013 Shave it and use 2 head gaskets.Cometec makes thicker gaskets too. Car looks sweet. Get that sumabitch runnin!!! Two head gaskets? For real? I know this thing has more compression than stock because of the flat tops, do you think that would make a difference in head gasket reliablilty? Also, if I bought ARP head bolts, could I torque them down tighter? Quote Link to comment
Tristin Posted March 19, 2013 Report Share Posted March 19, 2013 I would get yourself a good straight edge and check to see if the head is warped yourself. A machinist will charge you anywhere from $40-$60 and it will take him 5min. Pick up a thicker gasket if you need to shave the head a bit and no... torquing down the head bolts will not fix a warped head. Quote Link to comment
qwk_snd Posted March 19, 2013 Author Report Share Posted March 19, 2013 I would get yourself a good straight edge and check to see if the head is warped yourself. A machinist will charge you anywhere from $40-$60 and it will take him 5min. Pick up a thicker gasket if you need to shave the head a bit and no... torquing down the head bolts will not fix a warped head. I know that torquing down the head bolts tighter won't fix the warped head, but will it keep this from happening again in the future after the head is fixed? Where can I get a ticker gasket? Quote Link to comment
Tristin Posted March 19, 2013 Report Share Posted March 19, 2013 It should make no difference. Torque specs are there for a reason... the advised spec is all you need if you torque them properly. Quote Link to comment
izzo Posted March 19, 2013 Report Share Posted March 19, 2013 Just go with stock torque specs man. If you think they aren't torquing right, then use the arp head studs. it will ensure proper torque is being applied. If you clean the bolt holes out for the head in the block really well then it should be fine. Over torquing will not do you any good. If you get the head fixed (if thats the problem) Then stock specs will suit you fine. Quote Link to comment
qwk_snd Posted March 19, 2013 Author Report Share Posted March 19, 2013 Just go with stock torque specs man. If you think they aren't torquing right, then use the arp head studs. it will ensure proper torque is being applied. If you clean the bolt holes out for the head in the block really well then it should be fine. Over torquing will not do you any good. If you get the head fixed (if thats the problem) Then stock specs will suit you fine. Right on, sounds good. Now, where do I find one of these thicker gaskets? Quote Link to comment
izzo Posted March 19, 2013 Report Share Posted March 19, 2013 Maybe nissanparts.cc if you have the part number, or check rockauto to see if they list different thicknesses Quote Link to comment
TENDRIL Posted March 19, 2013 Report Share Posted March 19, 2013 http://www.ebay.com/itm/copper-020-Fel-Pro-9236sp-Engine-Cylinder-Head-Spacer-Shim-gasket-nissan-datsun-/110961262105?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash=item19d5ce7e19 heres a spacer it might give you a little bit more comfort if yoou have to shave your head Quote Link to comment
qwk_snd Posted March 19, 2013 Author Report Share Posted March 19, 2013 Just ordered a gasket set and a copper spacer, now I just need to get the head pulled and have it machined! She'll be going again in no time... Quote Link to comment
r0p0doe Posted March 20, 2013 Report Share Posted March 20, 2013 Just ordered a gasket set and a copper spacer, now I just need to get the head pulled and have it machined! She'll be going again in no time... I'm at the same stage as you man, started pulling the head today but had to stop because my sister needs help moving -_- Quote Link to comment
qwk_snd Posted March 20, 2013 Author Report Share Posted March 20, 2013 sweet ride :) Thanks man! Quote Link to comment
qwk_snd Posted March 20, 2013 Author Report Share Posted March 20, 2013 I got the head pulled last night, took all of like 30 minutes. lol NOW, when I take this thing to the machine shop, do I need to pull the cam and all that jazz before I do so, or can I leave it assembled? Quote Link to comment
fisch Posted March 20, 2013 Report Share Posted March 20, 2013 Did you run a straight edge across it? You have me curious. But really I am just writing to say, This is a freakin sweet 4-door! Love the color. Looks really clean. I think I like 4-doors more than 2, but I am probably a bit biased. Quote Link to comment
qwk_snd Posted March 20, 2013 Author Report Share Posted March 20, 2013 Did you run a straight edge across it? You have me curious. But really I am just writing to say, This is a freakin sweet 4-door! Love the color. Looks really clean. I think I like 4-doors more than 2, but I am probably a bit biased. No, I haven't ran a straight edge across it just yet, don't have one, but I guess I could go buy one tonight. Thanks for the compliment, she is really clean for her age! SUPPOSEDELY only 39,000 original miles, the previous owner SWORE by it, but I think its more like 139,000... lol Quote Link to comment
Datso72 Posted March 21, 2013 Report Share Posted March 21, 2013 Liking that color and that stance alot. Quote Link to comment
qwk_snd Posted March 21, 2013 Author Report Share Posted March 21, 2013 Liking that color and that stance alot. Thanks bud. So guys... when I take this head to the machine shop, do I need to completely strip it first, or can I leave it assembled? Quote Link to comment
Mirrorimg Posted April 7, 2013 Report Share Posted April 7, 2013 Any time I have taken motors to my machinist I either disassemble it, or they do before they do any milling. I highly doubt any machine ship will mill the head or deck the block while the internals are in place. If they do the dis-assembly, there will obviously be a charge for the time it takes them. And this is a general question I'd like to throw out as I am only familiar with alum head and alum blocks. Do iron blocks have the same chance for warpage as the head? I dont see anyone talking about checking the block for trueness. Quote Link to comment
john510 Posted April 7, 2013 Report Share Posted April 7, 2013 I gotta ask where you got the Ed Hale head from.He lived down the street from me in Lakeside,Ca. Nice car by the way. Quote Link to comment
scooter stuff Posted April 7, 2013 Report Share Posted April 7, 2013 It was probably in an ally, behind a dumpster. I gotta ask where you got the Ed Hale head from.He lived down the street from me in Lakeside,Ca. Nice car by the way. Quote Link to comment
Dimerforlife13 Posted April 10, 2013 Report Share Posted April 10, 2013 Arp head studs have a different torque than stock head bolts. The specs should be in the box. Quote Link to comment
Dimerforlife13 Posted April 10, 2013 Report Share Posted April 10, 2013 And you dont have to completely disassemble it either. Just pull the cam, cam followers, springs clips and lash pads. You can leave the valves, springs, and retainers in. Quote Link to comment
qwk_snd Posted April 10, 2013 Author Report Share Posted April 10, 2013 I gotta ask where you got the Ed Hale head from.He lived down the street from me in Lakeside,Ca. Nice car by the way. The head was on the car when I bought it! I got the car from San Diego It was probably in an ally, behind a dumpster. Is this head not worth a crap, or what? Arp head studs have a different torque than stock head bolts. The specs should be in the box. Awesome, thanks! And you dont have to completely disassemble it either. Just pull the cam, cam followers, springs clips and lash pads. You can leave the valves, springs, and retainers in. Awesome! Thanks a lot man! Quote Link to comment
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