Re: Sonic check frustrations
[Re: IcorkSOAK]
#1769717
03/03/15 02:30 AM
03/03/15 02:30 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
I just bought a new sonic checker for $220... I'm not home yet to test it out EDIT this is what I bought but with the options http://www.ebay.com/itm/TM8812-Digital-U...=item4d2e75554f
P ......how wide is the head on that probe ? ... I got one on eBay toooo .... but the probe width is tooo wide to read smaller OD chassis tubing or the ID of a cyl wall.
Its 8mm.. I want to test it when I get home to see if I need to grind the probe housing.. but at 8mm I dont think I will
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Re: Sonic check frustrations
[Re: MR_P_BODY]
#1769718
03/03/15 02:51 AM
03/03/15 02:51 AM
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Joined: Jul 2008
Posts: 30,632 Florida STAYcation
IcorkSOAK
Financed his waterbed
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Financed his waterbed
Joined: Jul 2008
Posts: 30,632
Florida STAYcation
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Quote:
Its 8mm.. I want to test it when I get home to see if I need to grind the probe housing.. but at 8mm I dont think I will
.315 ? ... I think that is toooo wide. I think mine is .250 and my chassis guy says(IIRC) that it needs to be .125 or so to fully contact the material being measured.
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Re: Sonic check frustrations
[Re: MR_P_BODY]
#1769719
03/03/15 03:02 AM
03/03/15 03:02 AM
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Joined: Jan 2005
Posts: 12,478 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,478
Kalispell Mt.
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reeeeeeaaaaaaaaaaly? (in Jim Carrys voice)
I have had 3 5.9 mag blocks at the machine shop across the street for a month now waiting to be tested for $75 a pop
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Sonic check frustrations
[Re: MR_P_BODY]
#1769721
03/03/15 12:32 PM
03/03/15 12:32 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
Its 8mm.. I want to test it when I get home to see if I need to grind the probe housing.. but at 8mm I dont think I will
I purchased mine w/ a 6mm diameter flat-face probe and was the smallest they offered. I contacted the vendor about buying a second at the same time, because I suspected I was going to have to hand-fit one of them to read the curved surface of a cylinder bore properly... and I was right.
I spent some time w/ 600-grit wet-or-dry profiling the face of the probe to have a concave surface that appeared to seat properly against the inside of my 4.375" tapered ring compressor.
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Re: Sonic check frustrations
[Re: BradH]
#1769722
03/03/15 12:44 PM
03/03/15 12:44 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
Its 8mm.. I want to test it when I get home to see if I need to grind the probe housing.. but at 8mm I dont think I will
I purchased mine w/ a 6mm diameter flat-face probe and was the smallest they offered. I contacted the vendor about buying a second at the same time, because I suspected I was going to have to hand-fit one of them to read the curved surface of a cylinder bore properly... and I was right.
I spent some time w/ 600-grit wet-or-dry profiling the face of the probe to have a concave surface that appeared to seat properly against the inside of my 4.375" tapered ring compressor.
I was gonna spin up a 4" ID tube as a test piece and contour to it.. I'll make it fit a 3.9" that would be the smallest ID I'd measure..it should be fine on OD
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Re: Sonic check frustrations
[Re: dogdays]
#1769724
03/03/15 04:03 PM
03/03/15 04:03 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
Uh, Brad, that's convex. Concave would be for measuring the outside of a cylinder.
R.
Correct; wrong term, right modification. /
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Re: Sonic check frustrations
[Re: MR_P_BODY]
#1769725
03/03/15 05:12 PM
03/03/15 05:12 PM
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Joined: Jul 2008
Posts: 30,632 Florida STAYcation
IcorkSOAK
Financed his waterbed
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Financed his waterbed
Joined: Jul 2008
Posts: 30,632
Florida STAYcation
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Quote:
It gave a min bore spec that it could read.. it was in the 3" range... if I need to grind the housing I will it only has a single bar in the center for the signal EDIT I know the meter I use to bring home from work had a larger probe than a 1/8"(.125).. I'm sure it was over a 1/4"(.250) and it read great... did you ever try yours
Try mine ? ... reads dead-on(in mm only) on flat stock but not on a curved piece. I have been in touch with the seller trying to see if I can adapt another smaller probe to it ... but they don't know ...yet.
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Re: Sonic check frustrations
[Re: Quicktree]
#1769727
03/03/15 07:25 PM
03/03/15 07:25 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
none of the basic Chevy/ford shops around here have sonic checkers. guess they don't have that issue.
Ignorance is bliss... 'til the bliss starts to leak through the crack in the cylinder wall.
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Re: Sonic check frustrations
[Re: justinp61]
#1769728
03/03/15 07:32 PM
03/03/15 07:32 PM
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Joined: Jan 2003
Posts: 13,496 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,496
Marion, South Carolina [><]
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I had a real hard time finding one around here to check my World hemi block a while back. Finally found one at a smaller race engine shop (Naylor's) about an hour and a half drive away. Even Gene Fulton and PAR don't have a sonic checker...said they don't need one for anything they do. Naylor said he only uses his on certain cylinder heads for round track classes.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 4 speed, Dana 60 '71 Demon 340, no drivetrain, on blocks behind the barn '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Sonic check frustrations
[Re: Quicktree]
#1769729
03/03/15 07:32 PM
03/03/15 07:32 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
none of the basic Chevy/ford shops around here have sonic checkers. guess they don't have that issue.
I know my buddy has real thick walls on his 460.. at least twice what we play with.. he can safely go .120 over
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Re: Sonic check frustrations
[Re: MR_P_BODY]
#1769730
03/03/15 08:38 PM
03/03/15 08:38 PM
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Joined: Jan 2003
Posts: 16,376
dogdays
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,376
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Bigblock chevies, at least the MarkIV which are the original 396s, 427s and 454s, could usually go 0.125 over with no problem. I'm not sure about the 402s, because they might have been built on the 396 cores but bored out a little.
On the other hand 400 and smaller ford engines are quite thin in the walls, at least in the Cleveland and 335 families, and on many they were done at 0.030 over.
The 385 family, 429 and 460s, had thicker walls and blocks were quite stout.
R.
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Re: Sonic check frustrations
[Re: stroked470]
#1769732
03/03/15 08:46 PM
03/03/15 08:46 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I use to pay $75 for a sonic job... he gave me 64 readings per cyl.. then I started bringing home the sonic tester from work and did my own... but since I retired I havent done any... but I still have all the blocks that I tested... except one... it blew up due to a rod tearing in half... damn Viper rods
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