im sure we all had a problem like this before? - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

71tahoe · 11-06-2009, 02:12 PM

Quote:

Originally Posted by drewfever1020

ok the washer in the back helped a little but the real problem is my alternator is turning inward toward the water pump.
as u can see in the last pic u can see hoe it turns inward!
i need it to turn outwards what can i do to fix this?

That sounds like the lower bracket is too short.

red69ss · 11-06-2009, 10:42 PM

I believe tightness of belt plus the weakness of that upper bracket is probaly cause of your issues .I bet if you ran a standard style upper bracket or a standard belt setup you wouldn't have this issue

jay6891 · 11-06-2009, 11:07 PM

X 2. That is why I asked him to loosen up the belt and see it that gets rid of the twist. With that big of a pulley on the nose of alt. Gives it more leverage to pull the alt around. That top bracket looks weak to me also.

PowerPro · 11-07-2009, 02:09 AM

looks like a lot of the issue is the bracketry. try finding something that has 2 bolts holding the top bracket on instead of just 1. It looks like the top bracket may be bending a bit too.

See if you can find a thicker tube spacer for the bottom and use a thick washer on the end where it mates up with the alternator.

Bottom line - you got a beefy pully setup that is putting a lot of the tension further out than normal on the alternator shaft and you need a beefier bracket system.

drewfever1020 · 11-07-2009, 06:38 PM

my alternator is still shifting i can see it before i even put the belt on.
i cant get it to twisted outward?

Sport/Truck · 11-07-2009, 08:18 PM

Quote:

Originally Posted by smn69

You could try adding a couple of washers where the bracket attaches to the water pump to try and tip it away a little. You may not like this though, but what you really may need to do is buy a different alternator mounting bracket or system. That one just looks like it is going to continue causing problems. Good luck getting it lined up.

my thoughts too. It looks like the bracket my be flexing and allowing the belt to nose in.
s/t

Truck Dr. · 11-07-2009, 09:09 PM

Looking at the next to the last pic, the lower alt. bracket looks bent inward at the end, these often got used for lift points to hoist the motor, that maybe the case.
It is obvious that the alt is pointing in toward the water pump.
I know that you installed a heli-coil into the head maybe that you did not get the hole straight when you drilled it ?? pull the alt. and then install the lower alt. bolt, watching to see if by chance it's bent if not put a square up to the bolt and the block to to see if it's square or not. check that lower bracket, this is where the geometry problem is.

With the cog belt, you shouldn't need the tension like a V belt, but will still need some tension.

Dave

RustyParts · 11-08-2009, 09:09 AM

You may not want to do it, but I would grind an angle at the end of the spacer where it mounts on the head. You can then rotate the spacer until the altenator straightens up.

drewfever1020 · 11-08-2009, 03:12 PM

i hate this!

drewfever1020 · 11-10-2009, 08:10 PM

anyone got any ideas?

drewfever1020 · 11-11-2009, 03:17 PM

come on guys im sure someones had this problem before.
i really need this fixed im getting fustrated

Senator350 · 11-11-2009, 08:56 PM

I've had some pretty extreme work on my pulley set up...

bottom line_______ buy a bracket set that works. Alan Grove (IIRnameC) makes a good product.

11-06-2009, 10:42 PM	#27
red69ss Burnouts are therapeutic Join Date: Jun 2007 Location: lancaster, south carolina Posts: 852	Re: im sure we all had a problem like this before? I believe tightness of belt plus the weakness of that upper bracket is probaly cause of your issues .I bet if you ran a standard style upper bracket or a standard belt setup you wouldn't have this issue __________________ 1969 CHEVELLE SS 1972 C10 ALMOST DAILY DRIVER 1968 C10 RUSTBUCKET (MISSION IMPOSSIBLE) 1972 PONTIAC LEMANS CONVERTIBLE (WIFE'S CAR) "My wife and I were happy for twenty years. Then we met." - Rodney Dangerfield "The difference between genius and stupidity is that genius has its limits." - Einstein

11-06-2009, 11:07 PM	#28
jay6891 Car Knocker Join Date: May 2001 Location: jefferson,arkansas Posts: 664	Re: im sure we all had a problem like this before? X 2. That is why I asked him to loosen up the belt and see it that gets rid of the twist. With that big of a pulley on the nose of alt. Gives it more leverage to pull the alt around. That top bracket looks weak to me also. __________________ 68 c-10,91 sportside bed,350 .030 over,4 bolt,10-1 comp,2.05 intake/1.94 exhaust,1.6 Harland Sharp roller rockers,edelbrock rpm cam and intake w/750 carb, 700r4, 3.73 gears,Jacabbs Electronic Igntion w/Accel HEI distributer and super coil. ZR-1 roll pan, filled tailights. Blazer tank. Hidden hitch. 2 1/2" Flowmaster 40's. Parts bought but not installed>> ford 9" posi with disc. CCP front and rear lowering kit 4/5. Cab corners,foor boards,rockers, cab braces, Phatom grill, Painless wiring kit.

11-07-2009, 02:09 AM	#29
PowerPro Registered User Join Date: Sep 2009 Location: Spokane, WA Posts: 68	Re: im sure we all had a problem like this before? looks like a lot of the issue is the bracketry. try finding something that has 2 bolts holding the top bracket on instead of just 1. It looks like the top bracket may be bending a bit too. See if you can find a thicker tube spacer for the bottom and use a thick washer on the end where it mates up with the alternator. Bottom line - you got a beefy pully setup that is putting a lot of the tension further out than normal on the alternator shaft and you need a beefier bracket system. __________________ 1970 C20 LWB Fleetside with a 472 Caddy engine! TH400 Restoration in progress 07 Yamaha 650 V-Star Custom 83 Honda V-45 Magna

11-07-2009, 06:38 PM	#30
drewfever1020 Registered User Join Date: May 2008 Location: san antonio, texas Posts: 412	Re: im sure we all had a problem like this before? my alternator is still shifting i can see it before i even put the belt on. i cant get it to twisted outward?

11-07-2009, 09:09 PM	#32
Truck Dr. Registered User Join Date: Oct 2009 Location: Rio Rancho NM Posts: 74	Re: I'm sure we all had a problem like this before? Looking at the next to the last pic, the lower alt. bracket looks bent inward at the end, these often got used for lift points to hoist the motor, that maybe the case. It is obvious that the alt is pointing in toward the water pump. I know that you installed a heli-coil into the head maybe that you did not get the hole straight when you drilled it ?? pull the alt. and then install the lower alt. bolt, watching to see if by chance it's bent if not put a square up to the bolt and the block to to see if it's square or not. check that lower bracket, this is where the geometry problem is. With the cog belt, you shouldn't need the tension like a V belt, but will still need some tension. Dave __________________ Dave & Marilyn in Rio Rancho NM....1967 Chevrolet C-10 long step side.....250 3 spd. ..... 1968 Chevrolet C-10 long step side.....325 hp 350 4spd.....3" Exhaust....etc. 1965 Chevrolet Suburban K-10....292 4spd....cam....etc. Bow Tie Baby Last edited by Truck Dr.; 11-07-2009 at 09:10 PM.

11-08-2009, 09:09 AM	#33
RustyParts Registered User Join Date: May 2006 Location: Wyman, Kentucky Posts: 403	Re: im sure we all had a problem like this before? You may not want to do it, but I would grind an angle at the end of the spacer where it mounts on the head. You can then rotate the spacer until the altenator straightens up. __________________ 1972 GMC Jimmy, 4WD, 454 CI, 350 Turbo, 4" lift, 35" tires The math teacher said my son "Bubba" could be a mathmatical genius. cause he's got 13 fingers!

11-08-2009, 03:12 PM	#34
drewfever1020 Registered User Join Date: May 2008 Location: san antonio, texas Posts: 412	Re: im sure we all had a problem like this before? i hate this!

11-10-2009, 08:10 PM	#35
drewfever1020 Registered User Join Date: May 2008 Location: san antonio, texas Posts: 412	Re: im sure we all had a problem like this before? anyone got any ideas?

11-11-2009, 03:17 PM	#36
drewfever1020 Registered User Join Date: May 2008 Location: san antonio, texas Posts: 412	Re: im sure we all had a problem like this before? come on guys im sure someones had this problem before. i really need this fixed im getting fustrated

11-11-2009, 08:56 PM	#37
Senator350 Registered User Join Date: Feb 2004 Location: Albany, NY Posts: 522	Re: im sure we all had a problem like this before? I've had some pretty extreme work on my pulley set up... bottom line_______ buy a bracket set that works. Alan Grove (IIRnameC) makes a good product. __________________ RN U OVR



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.