Author Topic: Time for a tune up on the CV-23 (Read 7217 times)

makinwaves · « **on:** July 08, 2015, 09:59:46 AM »

Mike (Plugcheck) and I will be tuning up the 460 tonight. New plugs, check compression and timing, check for oil leakage at oil pressure sender, new battery and cable. I thought I saw somewhere that the plug gap was supposed to be .035. The guy at O'Reilly's said .044 or .045? I don't listen too well when I'm mentally disagreeing with someone. Lol. Any recomendations on plug gap and timing? Any other hints for performance or fuel efficiency?

Hyperacme · « **Reply #1 on:** July 08, 2015, 10:36:05 AM »

Some info here ...

http://forum.cgoamn.com/index.php?topic=2916.0

75starflight · « **Reply #2 on:** July 08, 2015, 10:45:26 AM »

seems to me that most spark plug gaps are around .030 to .035. If the people at your oreillys are anything like mine I wouldn't trust what they say one bit, of course I have never done a tune up on a 460 either.

Hope you can get her running and starting better.

makinwaves · « **Reply #3 on:** July 10, 2015, 02:36:05 PM »

Well, it wasn't what I was hoping for but we found the issue, so now I can get it fixed. We checked compression and found 2 cylinders had 0 compression! The others were from 40-80. We had the heads pulled off in an hour and found the intake valves in the dead cylinders were sunk way in. Several of the others were in bad shape also. The heads are going to the machine shop Monday and I should have it back together before T.I. Mo money, mo money.

75starflight · « **Reply #4 on:** July 10, 2015, 02:52:43 PM »

at least you found the problem before it caused more damage.

Plugcheck · « **Reply #5 on:** July 10, 2015, 04:31:17 PM »

It is likely that we will pull the engine over the winter to go through it should the compression not improve drastically by doing the heads. The cylinder walls have a nearly circular ball home pattern that barely broke the glaze. Generally this occurs when a diy'r attempts to complete a ring job without performing a complete glaze breaking hone. The new rings will not seat correctly. At least with the heads done, we can get it back to firing on 8 cylinders. Curious to know is anyone has any fresh 460 heads for sale? Might be cheaper than having these done?

75starflight · « **Reply #6 on:** July 10, 2015, 04:36:46 PM »

quick search in search tempest

might try these

http://boulder.craigslist.org/pts/5094510656.html

nes-cv23 · « **Reply #7 on:** July 11, 2015, 07:27:01 AM »

Have you ever heard this before? Boat... B.reak o.ut a.nother t.housand

makinwaves · « **Reply #8 on:** July 11, 2015, 05:02:36 PM »

Quote from: nes-cv23 on July 11, 2015, 07:27:01 AM

Have you ever heard this before? Boat... B.reak o.ut a.nother t.housand

Of course. Hopefully this part is only hundreds.

makinwaves · « **Reply #9 on:** July 14, 2015, 12:33:57 PM »

Update: Both heads are cracked, valves were ground, springs were worn out. I"m looking for a replacement set if anyone has any leads.

75starflight · « **Reply #10 on:** July 14, 2015, 12:59:16 PM »

Quote from: makinwaves on July 14, 2015, 12:33:57 PM

Update: Both heads are cracked, valves were ground, springs were worn out. I"m looking for a replacement set if anyone has any leads.

That stinks Tim! I will keep an eye out.

75starflight · « **Reply #11 on:** July 14, 2015, 01:03:19 PM »

http://ksu.craigslist.org/pts/5076349467.html

milford, ks

75starflight · « **Reply #12 on:** July 14, 2015, 01:22:58 PM »

another set on ebay

http://www.ebay.com/itm/FORD-429-460-CAST-IRON-CYLINDER-HEADS-SET-PAIR-GOOD-USED-COMPLETE-D3VE-A-CASTING-/351446878573?hash=item51d3ddc96d&vxp=mtr

makinwaves · « **Reply #13 on:** July 14, 2015, 02:00:23 PM »

Quote from: 75starflight on July 14, 2015, 01:22:58 PM

another set on ebay

http://www.ebay.com/itm/FORD-429-460-CAST-IRON-CYLINDER-HEADS-SET-PAIR-GOOD-USED-COMPLETE-D3VE-A-CASTING-/351446878573?hash=item51d3ddc96d&vxp=mtr

Brandon: Thanks
Mike: Look ok?

Jason · « **Reply #14 on:** July 14, 2015, 02:08:02 PM »

The DOVE 460 heads are the best. Pre-smog.
http://pages.ebay.com/link/?nav=item.view&alt=web&id=141667589938&globalID=EBAY-US

cv-19 · « **Reply #15 on:** July 15, 2015, 07:37:10 AM »

Do you have a valve in the water supply line to the motor? If you use it to control your water temp it could have caused your problem.

fireman24mn · « **Reply #16 on:** July 15, 2015, 08:36:54 AM »

This stuff has been on CL for a while.

https://minneapolis.craigslist.org/dak/bpo/5110067269.html

makinwaves · « **Reply #17 on:** August 03, 2015, 02:07:23 PM »

Update:

I found a pair of rebuilt heads for $130! They were from an old hot rodder who used to do heads and was cleaning out his shop. They're the same casting # as mine but with dual springs. The guy didn't want to crate them up for shipping so I decided to take a road trip out near Denver. Mike and I left early Saturday and made the 525 mile journey without issue, except trying to eat breakfast at the local truck stop which wasn't open yet at 5 am. We made it to Mead around 1:00. We chatted with the guy a short while and he even fired up his 340 Duster for us. Another uneventful trip back. We stopped at Quaker Steak in Grand Island for some wings and a beer. Upon arrival back at Sapp Bros. in Omaha there was police tape around the entire truck stop (Mike's car within). There was a briefcase left unattended or something like that so it was a bomb scare. They finally let Mike in to get his car. After that we regrouped at my house and discussed the plan of attack over a few more beers. Sunday evening we met at my place and got the engine back together in about 3 hours. Confident it would start right up with all the new stuff we were sadly disappointed with it not even coming close to firing. After much head scratching and double checking things Mike realized the engine was turning the wrong direction. The new starter was standard rotation. Now I need to locate a counter rotating starter and it should be good to go. I don't have much free time before T.I. but I'm confident it will be ready.

75starflight · « **Reply #18 on:** August 03, 2015, 02:39:38 PM »

Congrats on the new heads! too bad on the starter!

Did you guys make it up the the Cottonwood?

fireman24mn · « **Reply #19 on:** August 03, 2015, 03:08:43 PM »

I was having problems on my 23 starter and there are many choices online you can by. However mine was just a bad solenoid and I bought a new solenoid at the auto parts store and just bolted a new one on my old starter motor.