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Messages - Dunc the Funk

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Matt Shaff's Engine Shop / Re: Removing crank hub spacer
« on: November 30, 2019, 02:08:27 PM »
Grease did not work, I guess its because the area under the front lip was not enough.
So I tapped 2 of the 3/8" holes to 7/16" UNF as I have good taper & bottom taps for that.
Then I fabbed a simple puller from some 1"x1" angle iron with a nut welded under the middle hole & it pulled off nicely.

2
Matt Shaff's Engine Shop / Re: Removing crank hub spacer
« on: November 23, 2019, 03:47:29 PM »
Well the bolt did not push the spacer off because it ran out of thread before the flange reached the spacer. Two legged puller won't fit as not enough space between bolt head & spacer.
Looks like 7/16" tap will do holes ok so I may be able to fab a puller tool, but I may give the grease/dowel a try first.

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Matt Shaff's Engine Shop / Re: Removing crank hub spacer
« on: November 21, 2019, 02:00:16 PM »
Hope to get on to it tomorrow or over weekend. If I don't get it off I will post a pic from the front. I need to drain & remove the trans too so best do that first to enable holding the crank still while undoing the bolt.

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Matt Shaff's Engine Shop / Re: Removing crank hub spacer
« on: November 19, 2019, 12:45:49 PM »
Can you get a socket on the bolt?
If you can and the bolt is long enough would the flange on the bolt remove the spacer as you back the bolt out?

I think that is worth trying, socket does go on as I have turned motor over with it before.

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Matt Shaff's Engine Shop / Re: Removing crank hub spacer
« on: November 18, 2019, 10:03:06 AM »
Both those ideas could work. I guess I will try the grease first if I can figure out what to use for a dowel, maybe a large socket backwards.

On the other hand, if the hub is threaded I can do the same every time easily.

But as I have a cold & seeing as its around freezing now I probably won't be going out to the garage tonight, my heaters are not great.

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Matt Shaff's Engine Shop / Removing crank hub spacer
« on: November 18, 2019, 05:14:33 AM »
My BBC has a steel crank hub with a large-flanged bolt. In front of that there is an aluminum spacer for the blower pulley to sit on. The bolt will not go through the outer part of the spacer bore where it steps down. So in order to remove the hub I need to remove the spacer which seems to be a press or interference fit on the hub. I've been thinking of applying heat with an electric heat gun to expand the aluminum and also fabricating some kind of 2 legged puller that will fit. Anyone got some tips on removing the spacer?

7
Altereds / Re: Wheelie bar length?
« on: November 03, 2019, 02:34:06 PM »
Dave, when talking about length, is that the bars from the chassis end or from the axle? You have an FED & we have an altered so things are in different places.

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Altereds / Wheelie bar length?
« on: November 03, 2019, 07:10:30 AM »
I will be replacing our wheelie bars over the winter. The ones we have currently are 52" (4' 4") and their main problem is that being quite short the tolerance on the setting is too small. I'm thinking of moving up to 72" (6'). Any longer & they will not fit in the current support vehicle & I'd have to fab some way of fixing them on our open trailer. I think it's sufficient length anyway, but what do you folks run on your cars?

9
Spud Miller's Cave / Re: Hat nozzle type and starting issue
« on: October 10, 2019, 01:58:02 PM »
At the next meeting, even with the new pump, it was hard to fire a few times. Same symptoms, fired up quickly but then quit after a few seconds. Then last week we tried to test run it, would not start at all.
I have finally been able to determine the area of the problem, it's to do with the ignition system & probably related to battery voltage.
I tried firing it in my garage on just the bottle, same issue. Then I replaced the MSD 10-plus with an MSD 7 powered from a seperate battery. It fired right up & ran as long as I fed it. Result!
Of course, the driver starts jumping to conclusions, it's the 10-plus, we need a new one, we need a mag.
So I wired the 10 back in with seperate battery. Started & ran on the bottle easily.
So it's definitely either an issue with the wiring eg ignition switch intermittent or it's the battery voltage dipping disabling the ignition.
I can deal with it now I know what's going on, I have a background in electronics.

10
Altereds / Re: Ran our first seven!
« on: September 25, 2019, 02:50:31 PM »
Most cars run BBCs. One or two Hemis & at least one SBC. I'd like to run a BBF to mess with people's heads but it's a chevy I've got.

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Altereds / Re: Ran our first seven!
« on: September 23, 2019, 12:51:58 PM »
Thanks folks.
Here's another view, about 40 secs in.

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Spud Miller's Cave / Re: Hat nozzle type and starting issue
« on: September 20, 2019, 04:10:08 PM »
So...next meeting could not start it at all until we borrowed another racer's spare pump. Fired right up but tune now crazy rich, our pump must have been gradually wearing out. Seems to only need a tiny bit of prime now. Thinking of swapping the buzzard for a bugcatcher I have to see if idle tuning is easier. Could do with underdriving the blower til we get the chassis sorted too.

13
Altereds / Re: Ran our first seven!
« on: September 18, 2019, 02:39:07 PM »
Nothing wrong with the tank breather in it's normal function letting air in, but it has a rollover valve that pressure inside will hold shut - just as if it were upside down.

Backing it down sounds like a good idea.

14
Altereds / Ran our first seven!
« on: September 17, 2019, 01:58:21 PM »
Team Thundergod just had a crazy weekend. On Friday the car wouild not start at all (see previous threads re poor starting). Eventually we realised it could only be the fuel pump so we borrowed one & it fired up right away. Ran it but it was so fat because the pump was delivering way more fuel that we only did a couple of 9 second passes. I finally got the tune more or less back on track & we went 7.98 @ 169. Still way rich! We were hoping for a better final pass as I had leaned it a bit more but I made a mistake by filling the tank to the brim with the system still full of fuel, then leaving it in the hot sun for half an hour. Fuel must have pushed into the cylinders, it would barely turn over let alone fire & we missed our chance.

Video from Santa Pod Raceway:

https://m.facebook.com/story.php?story_fbid=2451364821773018&id=100006985711150

15
Altereds / Re: What did you do on your Altered TODAY?
« on: September 10, 2019, 03:15:37 PM »
Aaaaaand then I found some cracks in both axle tubes near the ends. Driver is taking car away tomorrow to get a proper welder buddy & fellow racer to weld it up on Thursday.

Assuming that's fixed, we are towing to the track either Thursday pm or Friday am. RWYB on Friday, our class is running Saturday & Sunday at the NSRA 'Hot Rod Drags' at Santa Pod.

I might even get to do my first burnout / trundle down the track on Friday if I can prise the driver out of the seat & convince him I'm not going to break it.

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