MGB & GT Forum
Camshaft Timing
Posted by TomTater1
Topic Creator (OP)
Jul 24, 2016 07:29 PM
Joined 12 years ago
4 Posts
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Victor Vector
Jack B
Scappoose, OR, USA
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Jul 24, 2016 07:34 PM
Joined 9 years ago
159 Posts
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Thomas, describe your version of off.
What year motor, standard or modified ??
Help us out a bit can you ??
Jack.
Drive/Ride 1968 MGB GT (with 73 drivers side fender) 18V fresh lump, HIFs, Fresh ODGB V8 bushings...................."The Singer"
What year motor, standard or modified ??
Help us out a bit can you ??
Jack.
Drive/Ride 1968 MGB GT (with 73 drivers side fender) 18V fresh lump, HIFs, Fresh ODGB V8 bushings...................."The Singer"
Topic Creator (OP)
Jul 24, 2016 07:48 PM
Joined 12 years ago
4 Posts
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It's a 1969 GH Engine. I've got a electronic distributor (Petronix--Flamethrower). When driving and increase RPM's it sounds like it's missing and I here what sounds like tapping. It seems like it is really running ruff. It Idles fine. It's when you increase RPM's. I reset the Rockers with the .015 Gap Gauge after initial break in thinking this would help with the tapping sound, but it didn't. This is my 1st New Cam install, I'm not sure what normal should sound like.
Edited 1 time(s). Last edit at 2016-07-24 07:55 PM by TomTater1.
Edited 1 time(s). Last edit at 2016-07-24 07:55 PM by TomTater1.
Jul 24, 2016 09:13 PM
Joined 14 years ago
263 Posts
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Tom,
If I were you I would degree the cam. You will need a degree wheel as well as a positive engine stop. I believe you can find how to do this online. You could probably you tube it. My own cam was quite a few degrees behind timing. I bought an offset key from APT.
If I were you I would degree the cam. You will need a degree wheel as well as a positive engine stop. I believe you can find how to do this online. You could probably you tube it. My own cam was quite a few degrees behind timing. I bought an offset key from APT.
Speedracer
Hap Waldrop
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Jul 25, 2016 07:48 AM
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Joined 17 years ago
43,605 Posts
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Tater, good username by the way could we could we get a bit more info, was the cam stock, if so, did you line up the dots on the gears, if a performance cam did you time it at the recommended timing?
Hap Waldrop
Acme Speed Shop
864-370-3000
Website: www.acmespeedshop.com
hapwaldrop@acmespeedshop.com
Edited 1 time(s). Last edit at 2016-07-25 08:10 AM by Speedracer.
Hap Waldrop
Acme Speed Shop
864-370-3000
Website: www.acmespeedshop.com
hapwaldrop@acmespeedshop.com
Edited 1 time(s). Last edit at 2016-07-25 08:10 AM by Speedracer.
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Jul 28, 2016 06:19 PM
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Jul 28, 2016 06:27 PM
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ohlord
Rob C
A tiny Island off the coast of Washington State, N.W., USA
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1957 Land Rover Series I "EYEYIYI"
1957 Land Rover Series I "OVRLND" 1971 MG MGB 1971 MG MGB "Bedouin 2" & more |
Jul 28, 2016 06:28 PM
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You are confusing the camshaft degreeing with ignition timing.
You are getting pinging under load?
You need to get your timing in good order. If it is pinging under load, try pulling out a few degrees of distributor advance
LNDRVR4X4.COM
Home of Project "INCARN8'
1957 Series 1 Land Rover electric VEHICLE CONVERSION
FIXITUPCHAP.COM
FIXITUPCHAP INCORPORATED
RD3 Radar/ Electronic Warfare Technician
VIETNAM 1969-1972
You are getting pinging under load?
You need to get your timing in good order. If it is pinging under load, try pulling out a few degrees of distributor advance
LNDRVR4X4.COM
Home of Project "INCARN8'
1957 Series 1 Land Rover electric VEHICLE CONVERSION
FIXITUPCHAP.COM
FIXITUPCHAP INCORPORATED
RD3 Radar/ Electronic Warfare Technician
VIETNAM 1969-1972
Topic Creator (OP)
Aug 4, 2016 11:50 AM
Joined 12 years ago
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1st. Thank You So Much 4 your service in Vietnam. U R A Hero for going over there.
2nd. I set the distributor back a couple degrees and I believe the timing is where it should be. It drives good, but when U increase RPM's in all gears it sounds like a Rough Tapping Sound.
I just don't know if that's a normal Sound with a new Camshaft, Lifters, and Rods. I've got about 500 Miles on the break in. I've reset the Rockers at .015 after these 500 Miles. That didn't help with the noise.
2nd. I set the distributor back a couple degrees and I believe the timing is where it should be. It drives good, but when U increase RPM's in all gears it sounds like a Rough Tapping Sound.
I just don't know if that's a normal Sound with a new Camshaft, Lifters, and Rods. I've got about 500 Miles on the break in. I've reset the Rockers at .015 after these 500 Miles. That didn't help with the noise.
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