Charlie69 Posted December 2, 2010 Report Share Posted December 2, 2010 I is lloking good PAC! Chrome or Purple? Quote Link to comment
Pacific coast Datsun Posted December 2, 2010 Author Report Share Posted December 2, 2010 Ty Charlie. Its still bare metal in the pix. I cant afford to chrome it but i have a trick in mind for a color ;) Quote Link to comment
Pacific coast Datsun Posted December 6, 2010 Author Report Share Posted December 6, 2010 I got a few more bars welded on yesterday. Still have a few bits to fab up then figure out how ill mount the wood slats.... Quote Link to comment
Pacific coast Datsun Posted December 20, 2010 Author Report Share Posted December 20, 2010 Ok a few updates. The rack isnt done but didnt want to leave bare metal so i shot it candy purple... &...i traded for a Snug top shell. Its meant for the 620 but it's on the 720 for now... Quote Link to comment
Pacific coast Datsun Posted January 4, 2011 Author Report Share Posted January 4, 2011 Ok I made a disturbing discovery today... I believe the head gasket has gone bad on the 720 [Z 24] The last 2 days ive noticed the engine knocking & pinging at all speeds, rough idle & an obvious loss of power going up hills. & today i noticed water spraying out from where the exhaust manifold bolts to the down pipe & lots of smoke [vapor] coming from the tailpipe as i got home from work today. Checked the oil & its not discolored & the water lever in the radiator is still full. Wierd thing is that the truck still has a fair amount of power as long as i ease it through the gears & dont try to take off fast from a stop. The motor only has 144,500 miles on it but sat for many years before i bought it. Kind of bummed but oh well sh*t happens. Any tips on the head gasket repair i should know ? Quote Link to comment
Pacific coast Datsun Posted January 6, 2011 Author Report Share Posted January 6, 2011 Got the head off today & look what I saw... no gasket between #3 & 4 & as i lifted the head off alot of water came rushing out from the back of the head. Also noticed some of the passages were clogged with crud. Got all of them cleaned out & both surfaces [block & head] cleaned off & ready to accept the new gasket. Quote Link to comment
Wide14u Posted January 6, 2011 Report Share Posted January 6, 2011 that is fast :D Quote Link to comment
Farmer Joe Posted January 6, 2011 Report Share Posted January 6, 2011 damn mark! lol always on top of shit... hey, put an l20 head on it now! already 1/4 the way there! ollz Quote Link to comment
Pacific coast Datsun Posted January 6, 2011 Author Report Share Posted January 6, 2011 I would have this alot farther along if it were'nt for all the smog crap I had to mark so i know how it goes back together ! I may mod my downpipe while its apart...it's now shaped like an oval :rolleyes: Quote Link to comment
]2eDeYe Posted January 6, 2011 Report Share Posted January 6, 2011 Did you ever post pics of the 4x4? Truck looks good, too bad about the headgasket. Easy enough to fix. :) Quote Link to comment
Pacific coast Datsun Posted January 7, 2011 Author Report Share Posted January 7, 2011 Steve ill try & remember to email you pix of the 4x4. I was refering to a writeup somebody posted in the "engine" section saying the the cam lobes will point to 8 & 4 @ TDC compression. After cycling the engine numerous times they never went to 8 & 4. Instead i ended up with 10 & 2 just like an L motor. Im hoping thats gonna be ok. Oh & the wedge i made is half the size reccomended in the writeup. Just making general observations... Quote Link to comment
Pacific coast Datsun Posted January 7, 2011 Author Report Share Posted January 7, 2011 Started putting it all back together today & i got to the point of putting the cam sprocket back on. The issue im having is it's 1/2 away from the cam bolt lining up & when i pull UP on the sprocket & look down inside the cover i can see the tensioner & spring sliding back & forth. I think that when i slid the wedge down it somehow pushed the tensioner out of position & now its now allowing the cam sprocket from raising up high enough. I may try with a telescopic magnet to get the tensioner back in position or....ill have to pull the front of the motor. All of this for a $25 part :unsure: Quote Link to comment
datto510 Posted January 7, 2011 Report Share Posted January 7, 2011 That suck. I've done that and had to remove the front cover. Quote Link to comment
]2eDeYe Posted January 7, 2011 Report Share Posted January 7, 2011 As long as the plunger hasn't come out of the bore you can use a prybear to get it pushed in further...it's still a pain in the ass though. Quote Link to comment
TheCiscoKid Posted January 8, 2011 Report Share Posted January 8, 2011 I would also like pics of the 4x4, I can PM you my email addy if you want. Love your 720, you may have mentioned it but what kind of welder are you using? Also, how did you mount that rack? Do 720s have rain gutters? Quote Link to comment
DATSKAOS Posted January 8, 2011 Report Share Posted January 8, 2011 Mark, gimme your Snugtop!! Good luck with your repair, I too have ran into that tensioner problem on 3 Z motors, had to pull the cover, wich turned into an oil pan job too :o Quote Link to comment
nis720 Posted January 9, 2011 Report Share Posted January 9, 2011 The Chilton manual has dimensions for a wood block that will assist in keeping the chain from falling down into the oil pan and the tensioner in place. Quote Link to comment
datzenmike Posted January 9, 2011 Report Share Posted January 9, 2011 A 1/2" thick piece of wood, 6 1/2" long and tapering from 1 3/4" down to 1 1/4". Quote Link to comment
Pacific coast Datsun Posted January 10, 2011 Author Report Share Posted January 10, 2011 I did make the wedge with those dimensions. To me it seemed difficult to get it down inside the chain so i made it shorter. That was my fault & why the tensioner popped out. That means....time to remove the timing chain cover. I now have ALL the bolts & parts off the timing cover & I cant get the cover to budge. Slowly losing my patience over here....am i missing something ? If this were an L motor id be back on the road by now. Quote Link to comment
]2eDeYe Posted January 10, 2011 Report Share Posted January 10, 2011 I now have ALL the bolts & parts off the timing cover & I cant get the cover to budge. Slowly losing my patience over here....am i missing something ? The oil pan bolts to the bottom of the TC cover. Maybe those? Quote Link to comment
Pacific coast Datsun Posted January 11, 2011 Author Report Share Posted January 11, 2011 2eDeYe' date='10 January 2011 - 08:40 AM' timestamp='1294677611' post='406922']The oil pan bolts to the bottom of the TC cover. Maybe those? Thanx Steve i already removed those. Got the cover off today..ended up being a 10 mm behind the oil pump & 1 of the remaining 3 water pump bolts had to be removed. Id like to make a wedge made out of metal now that it's apart / before reassembly. Pix to come :rolleyes: Quote Link to comment
]2eDeYe Posted January 11, 2011 Report Share Posted January 11, 2011 ..ended up being a 10 mm behind the oil pump :rolleyes: Ohhh that bastard... I forgot about that guy. Quote Link to comment
Pacific coast Datsun Posted January 12, 2011 Author Report Share Posted January 12, 2011 With help from a friend [bill] today we finally got most of the front put back on. Bill brought over a wedge that we cut down just a tad. I swear a wedge 6 1/2 inches long did'nt wanna work for me for whatever reason but this one did........ Should be able to finish tomorrow & fire her up. Quote Link to comment
1lo620 Posted January 12, 2011 Report Share Posted January 12, 2011 Thanx Steve i already removed those. Got the cover off today..ended up being a 10 mm behind the oil pump & 1 of the remaining 3 water pump bolts had to be removed. Id like to make a wedge made out of metal now that it's apart / before reassembly. Pix to come :rolleyes: ya it does help if you take all the bolts out....geez..lol Quote Link to comment
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.