Intake studs, What heads are these? |
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Intake studs, What heads are these? |
jsaum |
Jun 4 2011, 09:20 PM
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#1
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Senior Member Group: Members Posts: 530 Joined: 12-June 07 From: Everett, WA Member No.: 7,809 Region Association: None |
So I was a happy 914 owner, just got a great deal on a set of dual carbs and went to install them when I found that the two top studs seem to be pitched at an angle! WTF! This engine is from a parts car that's going to go into my 72, I thought I would dial everything in before I did the swap. My question is what type of heads are these? Also I bought the intake gaskets that have the insulator plates it now looks like I'll have to use a regular thin ones, where can I find them? I'll get the dremel out and make the intakes fit, I guess!
Thanks, Jsaum Attached image(s) |
Hammy |
Jun 4 2011, 09:59 PM
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#2
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mr. Wonderful Group: Members Posts: 1,826 Joined: 20-October 04 From: Columbia, California Member No.: 2,978 Region Association: Northern California |
1.7/1.8 heads.
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70_914 |
Jun 4 2011, 10:57 PM
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#3
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Member Group: Members Posts: 395 Joined: 4-December 09 From: Roy, WA Member No.: 11,096 Region Association: Pacific Northwest |
Are you talking pitched at an angle as in crooked or bent? Hard to tell from your picture...
I have some 1.7/1.8 heads laying around if you needed some replacements, but they will need gone through. |
McMark |
Jun 5 2011, 12:05 PM
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#4
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Could be Bus 2.0 heads as well.
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Spoke |
Jun 5 2011, 12:24 PM
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#5
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Jerry Group: Members Posts: 6,991 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None |
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underthetire |
Jun 5 2011, 02:00 PM
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#6
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
The one on the right sure looks bent.
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jsaum |
Jun 5 2011, 02:32 PM
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#7
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Senior Member Group: Members Posts: 530 Joined: 12-June 07 From: Everett, WA Member No.: 7,809 Region Association: None |
No they're not bent i can see the threads are angled in. These heads each have a vent tube on the left side, are they bus heads?
jsaum |
jsaum |
Jun 5 2011, 02:47 PM
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#8
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Senior Member Group: Members Posts: 530 Joined: 12-June 07 From: Everett, WA Member No.: 7,809 Region Association: None |
Here's better pictures. The one stud maybe slighty bent, I'm not sure I'm brave enough to try and back it out!
jsaum Attached image(s) |
TheCabinetmaker |
Jun 5 2011, 03:22 PM
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#9
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I drive my car everyday Group: Members Posts: 8,304 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
The vents are susposed to have hoses running to a catch can, then back to the oil filler neck (for carbs).
Put a nut on the stud (all the way on) .Put a socket with an extension on the stud and gently tweak it back so it lines up with hole. Then remove the nut to clean up the theads on the end. Stick a rag in the socket and you probably won't even damage it. |
TheCabinetmaker |
Jun 5 2011, 03:25 PM
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#10
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I drive my car everyday Group: Members Posts: 8,304 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
btw, using a jamb nut-two nuts tighened together on the stud- the studs are easy to back out using the first nut .
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McMark |
Jun 5 2011, 11:39 PM
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#11
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Yeah, don't worry about pulling that stud. Double nut it and it will come right out.
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URY914 |
Jun 6 2011, 05:57 AM
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#12
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I built the lightest 914 in the history of mankind. Group: Members Posts: 121,017 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
Yep, pulling studs is easy. Then just use a bolt instead of a stud. I'm using bolts with allen heads (socket head cap screws) on my car. With the intakes I'm using, I couldn't get a socket on the nut and using a open end wrench was a slow PITA. So I took the studs out and replaced them with allen head bolts. Much easier now to pull the intakes off.
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Cap'n Krusty |
Jun 6 2011, 07:38 AM
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#13
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
There's precious little material where the intake studs are threaded into the heads, and pulling them as little as possible is the way to go. If they're crooked and you use bolts instead, you run the risk of still having issues with the fit, and pulling the threads, as well. As for them "coming right out", I've seen them stuck badly enough to require a stud puller, and take the threads with them when they do come out. OH, BTW, those are 914 or T4 heads ONLY. Busses never had the breather ports, and they're NOT 1.8 heads unless they've been fly cut for the larger bore.
The Cap'n |
Root_Werks |
Jun 6 2011, 10:38 AM
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#14
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Village Idiot Group: Members Posts: 8,334 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest |
There's precious little material where the intake studs are threaded into the heads, and pulling them as little as possible is the way to go. If they're crooked and you use bolts instead, you run the risk of still having issues with the fit, and pulling the threads, as well. As for them "coming right out", I've seen them stuck badly enough to require a stud puller, and take the threads with them when they do come out. OH, BTW, those are 914 or T4 heads ONLY. Busses never had the breather ports, and they're NOT 1.8 heads unless they've been fly cut for the larger bore. The Cap'n (IMG:style_emoticons/default/agree.gif) L-Jet heads didn't have breather ports. Probably 1.7 heads. |
HAM Inc |
Jun 6 2011, 11:23 AM
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#15
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Senior Member Group: Members Posts: 846 Joined: 24-July 06 From: Watkinsville,GA Member No.: 6,499 Region Association: None |
Those are 1.7 heads.
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jsaum |
Jun 6 2011, 02:18 PM
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#16
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Senior Member Group: Members Posts: 530 Joined: 12-June 07 From: Everett, WA Member No.: 7,809 Region Association: None |
O.K. cool at least I know what they are at this point! I'll pull the studs out this evening and update the post with my findings.
Jsaum |
charliew |
Jun 6 2011, 04:31 PM
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#17
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Advanced Member Group: Members Posts: 2,363 Joined: 31-July 07 From: Crawford, TX. Member No.: 7,958 |
Put two nuts on the stud and then put a deep scoket on the stud and straighten it with a big closed box end wrench over the socket to use as a prybar. Put the bottom nut where you want the stud to get straightened.
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Cap'n Krusty |
Jun 6 2011, 07:04 PM
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#18
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
Put two nuts on the stud and then put a deep scoket on the stud and straighten it with a big closed box end wrench over the socket to use as a prybar. Put the bottom nut where you want the stud to get straightened. "Straighten it"? Have you looked at a T4 head lately? You have a hard steel stud screwed into a soft (and abusively heat cycled) aluminum head, and you have about 10mm of engagement into a boss which tapers upward to about 3-4mm thickness. Bending that stud could either be successful or destroy the area of the upper corner of the intake port. You get what you get, and your chances are 50/50 on a GOOD day. The material you're messing with is barely thick enough for a helicoil, so there's VERY little room for error. Think about it ................... The Cap'n |
URY914 |
Jun 6 2011, 07:34 PM
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#19
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I built the lightest 914 in the history of mankind. Group: Members Posts: 121,017 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
I gotta go with the Cap't here. You will most likely break off the stud flush with the head or break off a piece of the head. (IMG:style_emoticons/default/sad.gif)
That is a risk I wouldn't take. |
jsaum |
Jun 6 2011, 10:48 PM
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#20
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Senior Member Group: Members Posts: 530 Joined: 12-June 07 From: Everett, WA Member No.: 7,809 Region Association: None |
O.K. I got seven of the studs out two were bent and the one that is left will only unthread part way out before it stops. I tried a little liquid wrench and some WD-40 along with a little heat but could not persuade it to come out. It appears to be staight enough to work I can get the EMPI 34's on now. I was hoping to use the insulated gaskets and longer studs but I don't want to risk tearing up the threads. Even with two nuts and a lot of force it didn't want to come out. Tomorrows project daul carbs!
Jsaum |
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