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#1 |
Registered User
Join Date: Apr 2008
Location: Oregon City, Oregon
Posts: 741
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pulleys not lining up...help
I thought I would post some engine bay pics for interest and see if someone could help me figure something out. The engine pics still show some work to be done but it's coming along. I installed this engine about 8 years ago and it has sat until about 6 weeks ago. I cannot figure out the pulleys. In the pics I think you can see that the power steering and alternator pulleys do not line up with the crank pulleys. I am sure these are the same pulleys that where pulled off. I am wondering about short water pump vs long water pump? Could that be it? Even if the water pump needs to be a long the power steering pump pulley does not line up either. I plan to pull the water pump and pulleys to paint them once I figure this out but...what gives? Any thoughts?
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#2 |
Registered User
Join Date: Oct 2006
Location: Dundee, Oregon
Posts: 311
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Re: pulleys not lining up...help
Rex, i dont really have an answer for you except to say that i am dealing with mine having issues too. However this truck was purchased as a basket case and has not been licensed since 1979. No telling when it last had a motor, needless to say, i did not get a motor or any pullies with mine.
To maybe be of help, i have a short water pump pulley and both crank pulleys in the mail from teeitup. You are reasonably local if you want to come take a look at them or compare to what you have already. I should also end up with a spare cast crankshaft pulley for power steering that i know is for one of our trucks. |
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#3 |
Registered User
Join Date: Dec 2011
Location: Creighton Sask. Canada
Posts: 4,121
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Re: pulleys not lining up...help
Install small washers behind top pulley on back of bolts.
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#4 | |
Registered User
Join Date: Apr 2008
Location: Oregon City, Oregon
Posts: 741
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Re: pulleys not lining up...help
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#5 |
Registered User
Join Date: Apr 2008
Location: Oregon City, Oregon
Posts: 741
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Re: pulleys not lining up...help
Thanks for the tip(s) on the washers. I had not thought of that. I guess as long as the stack is not more than 2 or three it would be ok. I tend to drive with a heavy foot
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#6 |
Sheetmetal Psycho
Join Date: May 2005
Location: athens PA
Posts: 515
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Re: pulleys not lining up...help
Yup - washers. I painted the back side of my pulley and set washers on before it dried so they would stay on place.
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I didn't say you were stupid, but I was thinking it... I need a check up from the neck up! Project "Rigginstine's Monster" 1971 C-10 longbed 355/4spd Future mods: 67 front clip Webby's Rigginations - where everything has potential! |
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#7 |
Registered User
Join Date: Feb 2000
Location: Center City, MN, USA
Posts: 3,254
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Re: pulleys not lining up...help
I for one would NOT use washers to line stuff up.
When I bought my truck it was a basket case. One of the many issues was the pulleys on the engine. I tried washers, other pulleys, every trick I could think of. NOTHING worked. What I finally did, and I suggest you do, is find a matching set from an unmolested truck and use them. What I found with the washer thing is that at 500-800 rpms in the drive way everything looked good. However at certain other (usually much higher) rpms, harmonics would set up and the alternator bracket would vibrate like when we do vibration testing on airplane parts here at work. It was incredible. No wonder why I BROKE two alternator brackets before I got everything straightened out with matching pulleys. And don't forget if you lose your alternator on an AC-less truck, you also just lost your water pump so even though your truck will run for a while on the battery you got about 5 minutes of movement under its own power before you overheat. Since I got my matching set I haven't had one issue. Even after I added that big drag of an A6 air conditioner compressor off the other side.
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'70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN |
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#8 |
Registered User
Join Date: Sep 2011
Location: Eau Claire, Wisconsin
Posts: 415
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Re: pulleys not lining up...help
I had the same problem and installed washers on mine. It was simple and worked great.
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1969 shortbed c/10 1998 GMC sierra |
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#9 | ||
"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,940
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Re: pulleys not lining up...help
Does your rig have a/c? Wondering why the need for so many pulleys.
Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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#10 |
Registered User
Join Date: Apr 2008
Location: Oregon City, Oregon
Posts: 741
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Re: pulleys not lining up...help
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#11 |
Registered User
Join Date: Jun 2011
Location: Monroe, WI
Posts: 1,415
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Re: pulleys not lining up...help
I would not recommend washers either but they do make shims that are for adjusting pulleys that are a lot better.
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Adam My 1967 C10 - Turbo 250 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=485843 (608) 214-8706 |
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#12 |
Registered User
Join Date: Jan 2011
Location: Gilberts IL.
Posts: 2,488
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Re: pulleys not lining up...help
I had the same problem I went from a 70 307 to a 72 350 both short shaft and swapped the pulleys from the 307 for the power steering and they were 1/2 groove off couldn't figure it out except the 350 and 307 harmonic balancers are different so I went to the bone yard and took the pulleys, belts and alt brackets from a 86 impala and mounted the alt on the right side put a long shaft pump on that I had and all is good now. I needed the long shaft any way because the back of short shaft hit the Edelbrock 2 piece timing cover
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94 k2500 EXCab Long Bed 350ci New Toy 95 K2500 Suburban New PlowTruck 454ci Support our Troops @ http://anyairman.com http://www.woundedwarriorproject.org/ |
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#13 |
Registered User
Join Date: Aug 2009
Location: Alden NY
Posts: 2,705
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Re: pulleys not lining up...help
I too would not use washers. Measure the depth of your water pump to make sure it is a short pump. The pulleys on the water pump are not different sizes as yours seem to be. Get part numbers off your PS pulley and the pulleys on the balancer. Call this guy - Jim at either 480-981-3096 or 602-751-0454. He sells on ebay as "gotpulley", is extremely knowledgeable and will know exactly what you will need to do it right.
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1961 C1 Corvette 1959 El Camino 350 TPI, 9" 4 w disc 69 Blazer K5 - sold July '20 2021 Durango RT 5.7 |
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#14 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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I always was told a short water pump you can't stick your finger between the motor and back of pump.
101 trucks, always get all the brackets, and anything else that comes with the said motor when swapping it. ![]() ![]()
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#15 |
Registered User
Join Date: Jul 2011
Location: strausstown pa
Posts: 3,394
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Re: pulleys not lining up...help
I wouldnt use washers either maybe make some spacers for the brackets if you can I have seen the water pump shims they sell might help a little
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81 camaro 355 4/spd 342 posi my first love ![]() 67 swb step 454/4spd ott 373 posi 4/7 drop. 2000 s10 zr2 little blue truck that never gets stuck. '74 heald super bronc vt8. tecumseh powered moon rover. |
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#16 |
Registered User
Join Date: Dec 1999
Location: Mid NE USA
Posts: 2,212
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Re: pulleys not lining up...help
I used a shim kit I got from Summit or such. I think it was Moroso brand.
Ron
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Member #111 68 C-10 ![]() 70 ![]() 76 Jeep CJ-5 Help Support the Board: http://67-72chevytrucks.com/vboard/payments.php He who knows nothing is closer to the truth than he whose mind is filled with falsehoods and errors. Thomas Jefferson |
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#17 | ||
Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: pulleys not lining up...help
Quote:
Quote:
s/t
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. ![]() |
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#18 |
Registered User
Join Date: Dec 1999
Location: Mid NE USA
Posts: 2,212
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Re: pulleys not lining up...help
http://www.jegs.com/webapp/wcs/store...him+kit+pulley
http://www.summitracing.com/search/?...20pulley&dds=1
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Member #111 68 C-10 ![]() 70 ![]() 76 Jeep CJ-5 Help Support the Board: http://67-72chevytrucks.com/vboard/payments.php He who knows nothing is closer to the truth than he whose mind is filled with falsehoods and errors. Thomas Jefferson |
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#19 |
Registered User
Join Date: Nov 2011
Location: Kirkland, WA
Posts: 343
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Re: pulleys not lining up...help
Not an uncommon problem when doing a swap. I went to a performance shop and they had the billit 3 groove pulley hanging on the wall. No shimming, no washers or spacers. To my way of thinking, for everything you do there is an unintended consequence. Personally I wouldn't do it. Looking more closely at your picture, your power steering alignment looks OK, you could do away with the double water pump pully and leave a groove on the crank pully as a spacer. Something to consider is running two belts to the alternator especially if you get up towards 100 amps alt. It looks cool and takes up some of your extra grooves. Just a thought!
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#20 |
Registered User
Join Date: Apr 2008
Location: Oregon City, Oregon
Posts: 741
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Re: pulleys not lining up...help
I am definitively leaning towards getting a set of aftermarket pulleys. I will be re installing the factory ac too so that will take up the other grooves. I am doing a wrecking yard run this weekend to gather a few miscellaneous things. You never know what you may find!
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#21 |
Registered User
Join Date: Dec 1999
Location: Mid NE USA
Posts: 2,212
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Re: pulleys not lining up...help
I have been running shims/shim on my crank pulley for a few years with no problems.
Ron
__________________
Member #111 68 C-10 ![]() 70 ![]() 76 Jeep CJ-5 Help Support the Board: http://67-72chevytrucks.com/vboard/payments.php He who knows nothing is closer to the truth than he whose mind is filled with falsehoods and errors. Thomas Jefferson |
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#22 |
Registered User
Join Date: Apr 2000
Location: Bonne Terre, Mo
Posts: 3,005
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Re: pulleys not lining up...help
Do the serpentine swap and forget all this alignment stuff. V6 or V8 small block at the junk yard. Get everything water pump crank pulley, ac, alternator n snip the wire connector, all the bolts, washers, belts n hoses upgrade ur system with the higher amperage and be trouble free. Get the alternator tested at a chain store on the way home. Much cheaper than aftermarket n have all the pulleys n brackets powder coated. It will be easier and only a one time headache.
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'69 Chevy Long Fleet & '71 GMC Short Step & Project "ODD BALL" "You can wash a pig, soak it in most expensive perfume. In the end it is still just a pig." ODD BALL build thread http://67-72chevytrucks.com/vboard/s...d.php?t=478629" |
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#23 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Looking at this again. Why is the outter water pump pulley bigger than the inner one?
I have also noticed you have 4 pulley's on the crank, why you only need 3 for a truck setup with AC. ![]() ![]() Here is mine. ![]() ![]()
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#24 |
Registered User
Join Date: Apr 2008
Location: Oregon City, Oregon
Posts: 741
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Re: pulleys not lining up...help
Tonight I had a chance to look closer at the pulley situation. I had a major duh moment. The harmonic balancer is not completely seated so the crank pulley set is not lining up
![]() 1. Why do I have a 4 groove pulley set on the crank? It is two sets of two groove cast pulleys. From what I have found I should have a three groove pulley set. Could this be from a cali vehicle (air pump vehicle? Where there air pumps on these in 71?) 2. Why does my water pump (2 groove) pulley have that gap. In all the other pictures I have seen there is no gap. The front pulley is also a larger diameter that the back. 3. I have a power steering pump that only has one groove. The ac trucks I have seen all have a 2 groove power steering pump. From what I have seen I should have a three groove crank pulley, a two groove water pump pulley with no gap and a power steering pulley with two grooves. Is that correct? I will get the numbers off the pulleys tomorrow. I still plan to get a serpentine set up in the future but the budget says to make this work for now and concentrate on other things. |
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#25 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Power steering is only one groove that I know of. Never seen two. Maybe on the alternator but haven't seen it on the power steering before. Not on these models anyway.
Everything else seems to be correct. ![]() ![]()
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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