Need advice
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Laughing Gas
Joined: Jan 2013
Posts: 1,016
Likes: 4
From: Gulf Coast, MS
Point taken, the main reason I used the cap was because I wasn't sure how difficult it was going to be to get them out of the head or to close it. You said a bolt with a copper washer iirc? Almost like a oil drain plug?
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Looking back, we've already had some of this conversation. Anyway, while things are off I'd go ahead and plug the holes. It takes a 5/8-11 bolt about 1/2" long. I used a copper washer as well as high temp red RTV on the threads.
Thread Starter
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Laughing Gas
Joined: Jan 2013
Posts: 1,016
Likes: 4
From: Gulf Coast, MS
Well I finally got all my parts in but it seems that mother nature doesn't want me to work on my truck anytime soon. I also had to order the fill hoses for both tanks, for some reason none of the parts houses locally even listed them so now more waiting. Maybe by then the rain will stop and I can get to work.
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Laughing Gas
Joined: Jan 2013
Posts: 1,016
Likes: 4
From: Gulf Coast, MS
Gary, do you happen to know where you found these bolts at? I tried at Ace hardware and they didn't have anything close to it.
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
A 5/8" bolt with 11 turns per inch is a standard bolt. Here's a link to Amazon showing lots of 5/8-11 fasteners: https://www.amazon.com/s/?ie=UTF8&ke...l_170bc8949j_b
You want the shortest hex-head bolt you can get and then cut it down to 1/2" of threads. Run it in the head a few times to clean out the carbon and make sure it'll go in, and then put it in with a copper washer under the head and sealer on the threads. You can use Teflon tape, PTFE paste, or anti-seize.
You want the shortest hex-head bolt you can get and then cut it down to 1/2" of threads. Run it in the head a few times to clean out the carbon and make sure it'll go in, and then put it in with a copper washer under the head and sealer on the threads. You can use Teflon tape, PTFE paste, or anti-seize.
Moderator
Joined: Nov 2007
Posts: 22,415
Likes: 92
From: Denver Metro Area, CO
What I do to shorten bolts... first, thread a nut onto the thing, THEN use a hacksaw (or whatever) to shorten it, then remove the nut... the removal action "fixes" the now-kinda-damaged threads so the bolt can more easily be threaded into something.
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
I'd rep you if I could. I do that religiously and don't even think about others not knowing. (And I have a set of thread-chasing files that easily clean up most threads.)
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
Tip, Deburr them with a wire wheel before removing the nut. (or file or grinder)
-Enjoy
fh : )_~
-Enjoy
fh : )_~
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Thread Starter
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Laughing Gas
Joined: Jan 2013
Posts: 1,016
Likes: 4
From: Gulf Coast, MS
Ok heads are done, thanks to all. I have to admit I had a complete meltdown in the brain once I looked at the link Gary.....Ace hardware actually has 5/8 bolts that are 1 inch long. Worked well especially after I used a tap on it. I am having another one that I need some help with. I'm getting ready to start putting it back together after the rain stops from this depression out in the gulf passes, the intake I am using has the threaded holes for vacuum ports and in the front the 90 for the heater hose and temp gauge sending unit but I just want to make sure that I am not forgetting anything. From what I have read that the higher runner on the pass side is better used for vacuum if I am able to use the port on the back of the carb for the pcv valve. The upper intake I took off has a tree coming off of it for all the vacuum hoses used, can I just use that although some of the vacuum hoses that were existing are gone now or use something else? iirc there was a hose that went from the intake to a small vacuum manifold on the firewall that was used for different things but I dont remember if the brake booster had its own port at this particular moment.
Moderator
Joined: Jan 2001
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From: Virginia
The brake booster is a large hose(3/8) so it usually has it's own special spot. Try to keep the PCV as close to the carb as you can, either the carb has another large 3/8 port for it, or you can use the spacer. The PCV gases can foul your idle up unless it's mixed evenly to all the cylinders. The brake booster doesn't matter as much, as long as you have a large enough port and it has manifold(all the time) vacuum.
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Laughing Gas
Joined: Jan 2013
Posts: 1,016
Likes: 4
From: Gulf Coast, MS
The two threaded holes in the rear of the intake, what should they be used for? Should I separate the brake booster from a vacuum tree and plug one of the holes or utilize both of them? I didn't know if I used them both if it would effect the engine in anyway.