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Broken starter bolt

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Patrick View Drop Down
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Post Options Post Options   Quote Patrick Quote  Post ReplyReply Direct Link To This Post Topic: Broken starter bolt
    Posted: 16 September 2009 at 11:23am

Have any of you had to deal with a broken starter bolt?

I've got an '84 Fiero here (duke/4-speed) that I had bought as a "project" several years ago. It has clutch problems, so it's just been sitting waiting to be attended to. Anyway, I've finally got around to dealing with it, and among the many things I'm discovering it needs, the longer starter bolt (the one closest to the back of the car) is broken off flush with the underside of the block.

There is access to it straight up from under the car, but the access is a very narrow gap between the cradle and the cat.

[EDIT] Actually, I was wrong in my previous statement. The bolt that isn't broken is accessed from between the cat and the cradle. (Hey, that sounds like a Harry Chapin song!) The bolt that is broken is a bit more accessible at least as it's positioned just behind the cradle towards the engine. However, I'd need a drill bit that was eight inches long to reach up to the block (not including the end of the drill bit that would need to be in the chuck and also the necessary additional length at the pointy end which would be needed to drill into the broken bolt.)

I've heard that a reverse drill bit will sometimes work (by "grabbing" and backing the broken bolt out), but it's obvious that some kind of an extension in this situation would be necessary.

I'd like to hear what has worked for any of you in a situation like this.

 

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Capt Fiero View Drop Down
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Post Options Post Options   Quote Capt Fiero Quote  Post ReplyReply Direct Link To This Post Posted: 16 September 2009 at 12:09pm

Well they do exist and god knows I've tried, but Canadian Tire Won't sell me one separately PERIOD.

    They have a drill head chuck that fits on the end of 1/2" drive impact gun, they sell it with there cordless impact gun / hammer drill conversion.   They want $249-$299 for the kit and refuse to sell me just the chuck.  With one of those, you could simply put on a 1/2 drive extension onto it, then chuck it into either an air impact gun, or a good drill using a 1/2 drive drill to socket adapter.      Aside from that, I would say get a long drill bit and a fairly narrow drill.  My Craftsman 19.2v cordless is only about 3" thick, so it can fit into a great deal of places.      However you may still find it easier to remove the front motor mount, remove the dogbone and let the engine droop down a bit, so you can get at it a bit lower and on a slight angle to get a bit more clearance.     The sad part is I have seen complete duke engines sent to the scrape as no one would even pay the $50 that they were worth in scrap metal weight.  MIght be a good time to yard the motor out, remove all the 84 wiring and toss in a carbed SBC then call it a day.    Being as you said it was a stick, if you are lucky it will have the 3.32 gears in it and get better gas mileage than your V6 Auto does.

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Patrick View Drop Down
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Post Options Post Options   Quote Patrick Quote  Post ReplyReply Direct Link To This Post Posted: 16 September 2009 at 12:29pm

Originally posted by Capt Fiero Capt Fiero wrote:

Might be a good time to yard the motor out, remove all the 84 wiring and toss in a carbed SBC then call it a day.   

... 

No no no... I'm not doing a V8 engine swap into this '84 just because of a broken starter bolt!

Must be a simpler solution.

 

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Post Options Post Options   Quote Dr.Fiero Quote  Post ReplyReply Direct Link To This Post Posted: 16 September 2009 at 4:09pm
Long drill bit (aircraft surplus one) from KMS.  Punch a hole up the middle of the bolt.  Hammer in a square bolt extractor.  Heat up the area around the bolt as much as you can (OA torch job here - no propane wimpyness), then back it out.

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Post Options Post Options   Quote Patrick Quote  Post ReplyReply Direct Link To This Post Posted: 16 September 2009 at 4:30pm

Originally posted by Dr.Fiero Dr.Fiero wrote:

Long drill bit (aircraft surplus one) from KMS.

Would those also come as reverse drill bits?

Originally posted by Dr.Fiero Dr.Fiero wrote:

Heat up the area around the bolt as much as you can...

To be honest, I'd be scared to use a torch under the car, especially when there's just barely enough room for me to squeeze under there. Having the car catch fire while I'm pinned underneath is not something I'm willing to take a chance on.

 

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Post Options Post Options   Quote Dr.Fiero Quote  Post ReplyReply Direct Link To This Post Posted: 16 September 2009 at 4:40pm
Nope - not left hand.

But!

I still keep telling myself that I'm going to buy a drill doctor 500X one of these days.  And for about another $50, I can get the left hand chuck for it.  Yup, that means I can take any bit, up to 1/2", and do a spankin 135* split point tip on it!


As for not using a torch under the car....   that's your own issue you'll have to deal with I guess.

Sounds like it's time for a 3800 swap!  (everyone else said it - didn't want to feel left out)

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Post Options Post Options   Quote Patrick Quote  Post ReplyReply Direct Link To This Post Posted: 16 September 2009 at 4:48pm

Originally posted by Dr.Fiero Dr.Fiero wrote:

Yup, that means I can take any bit, up to 1/2", and do a spankin 135* split point tip on it!

What's a "135* split point tip"?

Originally posted by Dr.Fiero Dr.Fiero wrote:

As for not using a torch under the car....   that's your own issue you'll have to deal with I guess.

Using a torch under a car while it's on a lift is one thing. Using a torch under a car that's inches from my face while lying on the ground under it is another. I don't mind admitting I'm chicken.

 

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Post Options Post Options   Quote Dr.Fiero Quote  Post ReplyReply Direct Link To This Post Posted: 16 September 2009 at 4:56pm
Originally posted by Patrick Patrick wrote:

Originally posted by Dr.Fiero Dr.Fiero wrote:

Yup, that means I can take any bit, up to 1/2", and do a spankin 135* split point tip on it!

What's a "135* split point tip"?

(stolen from a website so I don't have to retype it!)
Typically, 118 degrees is the most common angle. But these drills require a starting “dimple” in metal with a center punch, otherwise the bit will “walk” or “skate” away from the hole location. Bits with a 135 degree point will start their own hole in metal and, of course, can be used on many other materials. ......  the 135-degree split point eliminates walking, making the bit more efficient

If you want more: http://www.extremehowto.com/xh/article.asp?article_id=60308
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Post Options Post Options   Quote Patrick Quote  Post ReplyReply Direct Link To This Post Posted: 16 September 2009 at 5:05pm

Thanks for the info.

So, back to what I brought up in my first post. Anyone had any experience with the following?

Originally posted by Patrick Patrick wrote:

I've heard that a reverse drill bit will sometimes work (by "grabbing" and backing the broken bolt out), but it's obvious that some kind of an extension in this situation would be necessary.

 

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Post Options Post Options   Quote marcelvdgn Quote  Post ReplyReply Direct Link To This Post Posted: 16 September 2009 at 11:36pm

Patrick

I have a 85 duke motor on the list of replacement engines

aircared, still in the car, complete, and running    

Just another option.

Marcel 86SE V6 Auto
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Post Options Post Options   Quote Patrick Quote  Post ReplyReply Direct Link To This Post Posted: 17 September 2009 at 12:43am

Geez, what is this? A broken starter bolt and everyone's trying to convince me to do an engine swap. Heaven forbid I was to throw a rod or drop a valve.

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Post Options Post Options   Quote Capt Fiero Quote  Post ReplyReply Direct Link To This Post Posted: 17 September 2009 at 11:18am

 

      Have you ever noticed there are not many 84's in the club.   Thats because the the 2 best things you can do with an 84 are

1 If it runs and drives, sell it, sell it to someone that doesn't really care about upgrading and just wants a car to drive.  Someone that plans to take it to a shop and have the shop replace the parts, because you can't really get cheap parts from another Fiero as all the 84 parts even the module and coil is different. The engine was the worst and least HP of all the Fiero's.  The books don't note it, but the 84 used flat tappet hyd lifters, however in 85 GM moved to a full roller cam with roller lifters that are MUCH better.    Has the worst suspension, (yes the 84 front suspension is a Little bit different than the 85.  It has the worst trans, both the 4spds had the "weak" case Muncie's.   

          All its issues aside it does not make it a bad car, it just makes it a bad car for someone that loves to "have fun" in the car.  With the parts prices being a great deal more, it just doesn't add up.

 

2.  Now the 2nd thing you can do with an 84 if it does not run,  yard out all the Unique 84 electronics, and drop in a non electronic engine like a Chevy V8 or convert a 4.9 to Carb.    You could use any Carb engine even a 2.8 if you wanted to.   

          Or

Buy a running 85/86 car, that is in bad shape, but runs, swap over the body and interior over, and go from there. 

Capt Fiero
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Post Options Post Options   Quote Dr.Fiero Quote  Post ReplyReply Direct Link To This Post Posted: 17 September 2009 at 11:24am
Originally posted by Patrick Patrick wrote:

Heaven forbid
I was to throw a rod or drop a valve.



we'd pretend you were a horse and shoot you.
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Post Options Post Options   Quote Patrick Quote  Post ReplyReply Direct Link To This Post Posted: 17 September 2009 at 11:42am

Originally posted by Dr.Fiero Dr.Fiero wrote:

we'd pretend you were a horse and shoot you.

You had your chance at the last meeting while I was standing up front.

 

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Post Options Post Options   Quote Patrick Quote  Post ReplyReply Direct Link To This Post Posted: 17 September 2009 at 11:44am

Originally posted by Capt Fiero Capt Fiero wrote:

Have you ever noticed there are not many 84's in the club.

If it runs and drives, sell it, sell it to someone that doesn't really care about upgrading and just wants a car to drive...

That's the plan with this car. It's an '84 SE that the previous owner basically put all Indy Fiero body panels and trim on (except for a rear wing) and painted it gold with silver trim. I got it for a "good" price years ago because it has clutch issues (won't disengage), and I've finally gotten around to dealing with it.

I've done some prep work to get it started after sitting all this time, but when I went to turn it over with the starter, the starter just spun without kicking out. That's when I eventually discovered that it's only being held on with one mounting bolt.

Does anyone know offhand whether the '84 dukes normally had a supporting brace on the back of the starter? (My '87 duke has one.)

 

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Post Options Post Options   Quote Capt Fiero Quote  Post ReplyReply Direct Link To This Post Posted: 17 September 2009 at 12:18pm

 

 

        I know they had them in 85, if they were not installed on the 84's they probably had a rash of starter issues and hence installed them in 85.   So I would assume they either did have them in 84 when they were released or there would have been a tech update to add them to the 84's.

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Post Options Post Options   Quote Patrick Quote  Post ReplyReply Direct Link To This Post Posted: 17 September 2009 at 1:25pm

I need to have a look on the side of the block to make sure there's a place to bolt the brace to. Should be, but it's safer to take nothing for granted!

Then I just need to track down a brace. If I remember correctly, it's just a bent piece of angled steel, but of course it's a special bent piece of angled steel.

 

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Post Options Post Options   Quote Patrick Quote  Post ReplyReply Direct Link To This Post Posted: 23 September 2009 at 9:12pm

Originally posted by Patrick Patrick wrote:

I just need to track down a brace.

Well, the solution was to rob the brace off my parts car, which is another '84.

Here's a shot of the broken bolt (white arrow).

So I put the starter back on with one mounting bolt (for now) and the support brace on the back.

After much messing about, I tried to start this Fiero which has been sitting unstarted for just over five years in my back yard!  (I brought it home on September 5th 2004.)

Anyway, she started right up.  The only problem is that there's a high pitch loud scream coming from somewhere that goes up and down with the RPM. I don't see anything rubbing.  I removed the fan belt to eliminate the alternator and the water pump. Made no difference. I suspect it might therefore just be a vacuum leak from a dried out and cracked rubber tube, but I ran out of light tonight and had to call it a day.

Yeah, I was pleased it started up so easily (after doing a multitude of things to get it ready), but obviously disappointed as well that there's an unknown problem. I'll see if I can track this down tomorrow...

 

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Post Options Post Options   Quote Capt Fiero Quote  Post ReplyReply Direct Link To This Post Posted: 23 September 2009 at 9:57pm

Congrats on the Fireup, always good to hear another Fiero came to life.

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Post Options Post Options   Quote Patrick Quote  Post ReplyReply Direct Link To This Post Posted: 23 September 2009 at 10:29pm

Thanks.  

Still a ways to go with this "project" yet though before she's driveable. Gotta figure out what's going on with the clutch. (Won't release.) Hoping, hoping, hoping that the cradle doesn't have to be dropped.

Bit by bit, one day at a time...

 

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