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#1
11-04-2023, 05:49 PM
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Two seemingly unrelated questions
In trying to track down a loud metallic noise coming from somewhere at the back of the new 463 I noticed that the space between the starter bendix gear and the flex plate was very close. I loosened the starter bolts and was able to move it a very small amount then measured the gap with a feeler gauge. That dimension is now .010. That seems awfully close to me. The 400 in my son's car has a thin spacer between the crank and the flex plate but the 400/463 in my T/A never had that spacer. It would give the flex plate more gap with the bendix gear. Anyway I fired the engine and the 'old' noise is gone but in getting down under the edge of the car where I could see the flex plate I was hearing a pulse type noise that I think is the exhaust ringing in the header pipes. Don't know that I have ever listened to that noise from under the car but it just seemed louder than I would have expected. I did check for leaks and could not find any.
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69 Bird w/1970 400 block(409 cubes), #64 heads, hyd. roller, Q-jet by Jeff E., original interior, ps, pdb, th350, and 3.73 gears. Pump gas, street driven muscle. 3800 lbs. race weight. Best, 11.39 @118, my son's car. 79 T/A w/463, Scat crank, Eagle rods, Icon pistons, Lunati solid roller, 262/270, KRE 325 heads, Northwind intake, QF950 carb, full interior, ps, pdb, th350, and 3.73 gears. Pump gas, 3650 lbs. race weight. 10.68 @ 126 so far... no tuning yet. |
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#2
11-04-2023, 05:59 PM
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Don’t worry about that exh noise, it’s normal, and if this motor has a bigger stroke then your last one then it’s producing bigger more noticeable exh pulses.
And yes .010” is close.
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#3
11-04-2023, 07:12 PM
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Steve, thanks for the response. Do you know about the spacer I mentioned?
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69 Bird w/1970 400 block(409 cubes), #64 heads, hyd. roller, Q-jet by Jeff E., original interior, ps, pdb, th350, and 3.73 gears. Pump gas, street driven muscle. 3800 lbs. race weight. Best, 11.39 @118, my son's car. 79 T/A w/463, Scat crank, Eagle rods, Icon pistons, Lunati solid roller, 262/270, KRE 325 heads, Northwind intake, QF950 carb, full interior, ps, pdb, th350, and 3.73 gears. Pump gas, 3650 lbs. race weight. 10.68 @ 126 so far... no tuning yet. |
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#4
11-05-2023, 03:19 AM
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What starter are you using?
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Be carefull of the feet you step on today.They may be attached to the a$$ you kiss tomorrow. |
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#5
11-05-2023, 09:39 AM
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Quote:
__________________
69 Bird w/1970 400 block(409 cubes), #64 heads, hyd. roller, Q-jet by Jeff E., original interior, ps, pdb, th350, and 3.73 gears. Pump gas, street driven muscle. 3800 lbs. race weight. Best, 11.39 @118, my son's car. 79 T/A w/463, Scat crank, Eagle rods, Icon pistons, Lunati solid roller, 262/270, KRE 325 heads, Northwind intake, QF950 carb, full interior, ps, pdb, th350, and 3.73 gears. Pump gas, 3650 lbs. race weight. 10.68 @ 126 so far... no tuning yet. |
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#6
11-05-2023, 10:17 AM
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I have seen aftermarket starters come with shims where you can space it away from the flex plate. Goes between the motor and mounting block
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Be carefull of the feet you step on today.They may be attached to the a$$ you kiss tomorrow. |
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#7
11-05-2023, 03:06 PM
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Good point. I may have some of those shims already.
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69 Bird w/1970 400 block(409 cubes), #64 heads, hyd. roller, Q-jet by Jeff E., original interior, ps, pdb, th350, and 3.73 gears. Pump gas, street driven muscle. 3800 lbs. race weight. Best, 11.39 @118, my son's car. 79 T/A w/463, Scat crank, Eagle rods, Icon pistons, Lunati solid roller, 262/270, KRE 325 heads, Northwind intake, QF950 carb, full interior, ps, pdb, th350, and 3.73 gears. Pump gas, 3650 lbs. race weight. 10.68 @ 126 so far... no tuning yet. |
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