Author Topic: alternator strap  (Read 4245 times)

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Offline Shimy87

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alternator strap
« on: July 25 2013, 10:19:36 AM »
Why is this a bad idea, seems like a pretty stout bracket and it keeps the DP from hitting on launch?
87 GN, K&N cold air, gutted cat, TT 5.7 chip, AFPR, 340 Walbro w/ hotwire, 60 LBS injectors, 981 valve springs, 206/206 Cam, RJC Powerplate, LS1 MAF & translator, Vacuum brakes, Hellwig rear sway bar, Energy suspension poly bushings, Razors Alky, Pypes exhaust, 5931 turbo, CK9.5 converter

Offline Steve Wood

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Re: alternator strap
« Reply #1 on: July 25 2013, 10:44:11 AM »
good engine mounts will not let it hit the control arm.

Has been known to cause timing retard but worse is when it breaks the end off the accessory bracket where it attaches or other things...too lazy to walk out to the shop and take a picture for you....
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Offline Shimy87

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Re: alternator strap
« Reply #2 on: July 25 2013, 03:58:22 PM »
wow, didnt think it could pull enough to brake it. I'll be removing that. RJC makes a bracket that mounts below that I'm sure you have seen. That looks like a solid piece.
87 GN, K&N cold air, gutted cat, TT 5.7 chip, AFPR, 340 Walbro w/ hotwire, 60 LBS injectors, 981 valve springs, 206/206 Cam, RJC Powerplate, LS1 MAF & translator, Vacuum brakes, Hellwig rear sway bar, Energy suspension poly bushings, Razors Alky, Pypes exhaust, 5931 turbo, CK9.5 converter

Offline SuperSix

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Re: alternator strap
« Reply #3 on: July 25 2013, 04:30:00 PM »
Don't want to use poly motor mounts?
'87 GN, 60lb, TA49, THDP, FTP cam, T+ lots o' shit - SOLD
'07 Ford F150 Lariat 2WD, 5.4L 3v - 255k
'20 Kubota BX2380. FEL, 60" deck
'78 IH/Case 184 Lo-Boy
'99 Kawasaki Bayou 400 4x4

Offline Steve Wood

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Re: alternator strap
« Reply #4 on: July 25 2013, 05:20:50 PM »
First, unless you have a ten second car, there is no need for straps, or poly mount...

Unless you want to go down to Sonic and brag about what parts you have on your car....

Second, altho you can get by with one poly mount in some cases, you may find you need  two because one only can roll the motor and downpipe closer to the control arm ear due to the rubber in the passenger side being soft with age.

Third, straps tend to transmit noise into the engine which as I said prior-can trigger the detonation sensor...

Now if you have enough power and traction to pull a 1.5 sec short time, then you probably need better mounts because the stock one will not stand up to be jerked on in those kinda situations.  It's one of those Newton's law thingys.

Steve Wood

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Offline Shimy87

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Re: alternator strap
« Reply #5 on: July 25 2013, 07:13:51 PM »
I put new rubber mounts in last year. I wont ever see 1.5 60 ft on these tires so im gonna lose the strap and call it good. :rock:
87 GN, K&N cold air, gutted cat, TT 5.7 chip, AFPR, 340 Walbro w/ hotwire, 60 LBS injectors, 981 valve springs, 206/206 Cam, RJC Powerplate, LS1 MAF & translator, Vacuum brakes, Hellwig rear sway bar, Energy suspension poly bushings, Razors Alky, Pypes exhaust, 5931 turbo, CK9.5 converter

Offline SuperSix

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Re: alternator strap
« Reply #6 on: July 25 2013, 08:20:40 PM »
Another satisfied IHADAV8.com customer.
'87 GN, 60lb, TA49, THDP, FTP cam, T+ lots o' shit - SOLD
'07 Ford F150 Lariat 2WD, 5.4L 3v - 255k
'20 Kubota BX2380. FEL, 60" deck
'78 IH/Case 184 Lo-Boy
'99 Kawasaki Bayou 400 4x4

Offline tb3

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Re: alternator strap
« Reply #7 on: July 25 2013, 08:32:59 PM »
yes but the poly mounts are smaller, and therefore easier to install than the stockers  :rock: :rock: :rock:
When I'm in Rome, they do as I do

Offline Steve Wood

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Re: alternator strap
« Reply #8 on: July 25 2013, 08:41:33 PM »
LOL...when did installing mounts become "hard"?

I bet Chris Garrett did not complain about installing mounts!!!!!!!!!!!!  :D
Steve Wood

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Offline tb3

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Re: alternator strap
« Reply #9 on: July 25 2013, 09:02:41 PM »
Some have said they notice a little more vibration. 
The only time I think I could ever sense a little more vibration is on a cold start high idle, till the rpm's come down.
 
When I'm in Rome, they do as I do

Offline Steve Wood

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Re: alternator strap
« Reply #10 on: July 25 2013, 09:15:09 PM »
think he changed the formulation to make the newer ones softer...it was always more obvious when you replaced them both
Steve Wood

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Offline tb3

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Re: alternator strap
« Reply #11 on: July 25 2013, 09:45:22 PM »
that reminds me, I don't think I ever posted the results of installing the poly body bushings on my 54000 mile gn.  My stock rubber bushings didn't look all that bad, but nevertheless, 25 years old.
I haven't drove it enough and put it through very many hard turns, or bounced over enough rail road tracks...to give a good review yet.   But I haven't noticed anymore vibration or rattles than before installing the new bushings.  but  I'm also the type that will dodge every pot hole and speed bump.
What I definetly did notice was the louder transfer of road noise while the car is rolling down the road with windows up and radio off.
I'm guessing its just the combination of the wheel bearings, rear diff, driveshaft u-joints, etc... that is now all being easier transfered to the body because of the harder bushings.
It isn 't loud enough to sound wrong, but I easily noticed it right off the bat on the first ride
 
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Offline Steve Wood

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Re: alternator strap
« Reply #12 on: July 25 2013, 10:27:31 PM »
same results as I had once
Steve Wood

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A lot of broken parts does not make you a racer; it makes you a slow learner.

Offline SuperSix

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Re: alternator strap
« Reply #13 on: July 26 2013, 01:35:46 PM »
I do NOT want any more road noise, no poly for me. My goal is a cadillac-like quiet interior.
'87 GN, 60lb, TA49, THDP, FTP cam, T+ lots o' shit - SOLD
'07 Ford F150 Lariat 2WD, 5.4L 3v - 255k
'20 Kubota BX2380. FEL, 60" deck
'78 IH/Case 184 Lo-Boy
'99 Kawasaki Bayou 400 4x4

Offline Steve Wood

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Re: alternator strap
« Reply #14 on: July 26 2013, 02:11:14 PM »
I agree, these are Buicks...they should ride quiet
Steve Wood

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A lot of broken parts does not make you a racer; it makes you a slow learner.

 

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