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i need v6 owners advice
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BluFbdy
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Joined: 16 Jul 2010
Posts: 915
Location: Port Orchard WA

1989 Chevrolet Camaro RS

PostPosted: Sat Apr 14, 2012 11:06 pm    Post subject: i need v6 owners advice Reply with quote

So I've been toying with the white camaro getting it road worthy for when I yank the t5 out of mine for a rebuild and it seems no matter what I do this thing is weak as hello. New cap, rotor and plugs/ wires (helped a lot) and I readjusted the idle air because the guy I bought it from had the set screw all the way out, hecked timing tonight and it wad wayyyyyy off. Readjusted it to 10* with the est disconnected and it smoothed out, can't find any vacuum leaks. I took it for a drive and it took my foot to the floor to get it up to speed at 35, its making a lot of noise and no go. Doesn't feel like a slipping transmission. When I hit the gas it bogs for a second or two then gets the slightest increase in torque and slowly increases.

How weak are the 2.8's because at this rate I'm about to throw my 305 in this pile when I do my swap. The only thing I can think of is restabbing the dizzy to be safe and be sure that my 10* is really 10*. Just an off the wall question but the #1 cylinder is still the drivers front on a v6 correct? And also a random thingthe previous owner had the rear injector unplugged by the dizzy, is that a cold start? What would be the reason/ benefit of doing that?

Any ideas for me? The passenger side rear plugs had oil on them when I did the plugs, leaky valve guides and it smoked for a few mins when warming up and then went away, that's a known issue but I reaaaaly don't wanna yank this thing apart if I don't have to. I've driven golf carts that are faster than this thing.

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Al Hasse
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Joined: 19 Nov 2005
Posts: 4379
Location: Bremerton, WA

1992 Chevrolet Camaro RS

PostPosted: Sun Apr 15, 2012 12:01 am    Post subject: Reply with quote

#1 cylinder is the front passenger side, it's also the one tat sits the most forward on the block.
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BluFbdy
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Joined: 16 Jul 2010
Posts: 915
Location: Port Orchard WA

1989 Chevrolet Camaro RS

PostPosted: Sun Apr 15, 2012 12:14 am    Post subject: Reply with quote

Al Hasse wrote:
#1 cylinder is the front passenger side, it's also the one tat sits the most forward on the block.


Dammit. Guess that would explain timing being so far off.... Well crap. Looks like Luke is gonna swing by tomorrow night and help me restab the dizzy, even if its not needed its still worth it to me knowig that its not something left to the previous owner. The guy defintely didn't know wtf he was doing lol

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Xophertony
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Joined: 13 Oct 2005
Posts: 5306
Location: Portland, Oregon.

1988 Pontiac GTA

PostPosted: Sun Apr 15, 2012 2:49 am    Post subject: Reply with quote

MPFI V6? If so check tour throttle position sensor too. If those are off it can cause a hesitation and lack of power.
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Hell, Tony drove his GTA to Cows a few years back with the pickup coil that came out in pieces.


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aaron_sK
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Joined: 23 Jan 2006
Posts: 8834
Location: Back in beautiful Tacompton

1987 Chevrolet Camaro IROC-Z

PostPosted: Sun Apr 15, 2012 6:21 am    Post subject: Reply with quote

No need to restab dist, just move the wires around. Firing order for the 60* is shown here:

http://c.fixya.net/fixya20/uploads/Images/5810216.gif

If you are ever curious about what the #1 is on an engine just look for which cylinder is farther forward in the block. In hindsight it is very obvious on the 60* engines as the passenger head is quite a bit forward. Wink

If you reset the minimum air you do need to reset the TPS as it will be wrong. *Edit: Just noticed Tony's post. Reading comprehension fail for me! Razz

With the 700R4 that engine will always be somewhat of a dog. A T5 will wake them up but this is a ladies car so I would assume that is not a viable option.
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chevymad
Master B


Joined: 11 Jan 2004
Posts: 5476


1987 Pontiac Formula

PostPosted: Sun Apr 15, 2012 8:20 am    Post subject: Reply with quote

Quote:
If you are ever curious about what the #1 is on an engine just look for which cylinder is farther forward in the block.


While this is generally true... as with all things there are exceptions to the rule. My pontiac V8 being one of them. Pontiacs are numbered like a chevy with #1 being the forward drivers side, however the furthest forward cylinder and the first rod on the crankshaft is #2. This is on the list of things that chevy mechanics dont know about pontiacs and has screwed up many a rebuild. If you put #1 rod furthest forward in the block you end up having all the rods hung backwards.
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BluFbdy
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Joined: 16 Jul 2010
Posts: 915
Location: Port Orchard WA

1989 Chevrolet Camaro RS

PostPosted: Sun Apr 15, 2012 9:26 am    Post subject: Reply with quote

Alrights so fix my timing blunder, check tps and reset minimum air, any other ideas? I just don't like having to put my foot so far into it just to hit 25 lol
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blue89
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Joined: 23 May 2006
Posts: 3482
Location: Bellingham/Eugene

1986 Chevrolet Camaro RS

PostPosted: Sun Apr 15, 2012 9:38 am    Post subject: Reply with quote

chevymad wrote:

If you put #1 rod furthest forward in the block you end up having all the rods hung backwards.


Do you have a picture of a pontiac block from the bottom? This doesn't make sense as I would imagine the crank would be pushed forward by one rod thickness.

To give the v6 some more pep I would put some better gears behind it. If it also seems slower than it should, I would disconnect the MAF and see if it runs better. I seemed to have untypical problems with mine.

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aaron_sK
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Joined: 23 Jan 2006
Posts: 8834
Location: Back in beautiful Tacompton

1987 Chevrolet Camaro IROC-Z

PostPosted: Sun Apr 15, 2012 9:57 am    Post subject: Reply with quote

chevymad wrote:
Pontiacs are numbered like a chevy with #1 being the forward drivers side, however the furthest forward cylinder and the first rod on the crankshaft is #2.


Shocked

Was that some weird GM corporate BS where they wanted all the #1's in the same spot or something? Seems crazy to me. Laughing

BluFbdy wrote:
any other ideas?


The timing is the issue, man. You don't need more solutions, you only need the right solution. Laughing When I first bought my yellow car it did the exact same thing. Turns out the numbnuts PO had four and six reversed.
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BluFbdy
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Joined: 16 Jul 2010
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Location: Port Orchard WA

1989 Chevrolet Camaro RS

PostPosted: Sun Apr 15, 2012 10:32 am    Post subject: Reply with quote

Just covering my bases lol I've never had a v6 and I wanted to make sure my crap talking wasn't 110% true on them lol
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aaron_sK
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Joined: 23 Jan 2006
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Location: Back in beautiful Tacompton

1987 Chevrolet Camaro IROC-Z

PostPosted: Sun Apr 15, 2012 11:12 am    Post subject: Reply with quote

Only partially. Laughing

I like the 60*, actually. If you pair them with a manual trans and a light car the later ones with the good bearings in them do fine.
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BluFbdy
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Joined: 16 Jul 2010
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Location: Port Orchard WA

1989 Chevrolet Camaro RS

PostPosted: Sun Apr 15, 2012 11:32 am    Post subject: Reply with quote

It'll be good for my wife I just don't want it to be go cart status lol
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chevymad
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1987 Pontiac Formula

PostPosted: Sun Apr 15, 2012 12:58 pm    Post subject: Reply with quote

blue89 wrote:
chevymad wrote:

If you put #1 rod furthest forward in the block you end up having all the rods hung backwards.


Do you have a picture of a pontiac block from the bottom? This doesn't make sense as I would imagine the crank would be pushed forward by one rod thickness..


The cylinder banks are offset backwards from a chevrolet. Passenger side is offset forward instead of the drivers.

No idea why they numbered the cylinders this way. Firing order is the same as a chevrolet only counterclockwise. Pontiac motors were actually built 2 years before the sbc too. However they were held by gm until the chevrolet was released.

If you put the #1 cylinder rod in the other bank, you'll see that moves the bearing tangs to the opposite side of the crank. Rod offset ends up backwards too. Motor self destructs soon after starting.

Anyway, no more polluting of this thread. Point was not to use the most forward cylinder as a hard and fast rule. Any more questions and I'll start a new post about the pontiacs.
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BluFbdy
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Joined: 16 Jul 2010
Posts: 915
Location: Port Orchard WA

1989 Chevrolet Camaro RS

PostPosted: Sun Apr 15, 2012 2:07 pm    Post subject: Reply with quote

Anyone know why that injector would have been unplugged? I plugged it back in and didnt see a difference in anything still cranks the same cold there or not
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aaron_sK
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1987 Chevrolet Camaro IROC-Z

PostPosted: Sun Apr 15, 2012 2:13 pm    Post subject: Reply with quote

In '89 V8 cars did not have a cold start. Is it possible that this engine came from an older car and the original chip was retained?
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BluFbdy
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Joined: 16 Jul 2010
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Location: Port Orchard WA

1989 Chevrolet Camaro RS

PostPosted: Sun Apr 15, 2012 3:08 pm    Post subject: Reply with quote

Idk if it was cold start, it was back by the distributor on the drivers side facing towards the front of the car I doubt this guy swapped anything he wasn't exactly the brightest person I've met and he said he's had it for like 10 yrs
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91RSVert
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Joined: 16 May 2007
Posts: 2736
Location: AR

1991 Chevrolet Camaro RS

PostPosted: Sun Apr 15, 2012 5:18 pm    Post subject: Reply with quote

if it was on the back by the dizzy, it was an coldstart. People often unplugged them cause they start leaking. What they dont know is its the injector leaking, not caused by the wiring. Or they may have done some matience and forgot to replug it.
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blue89
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Joined: 23 May 2006
Posts: 3482
Location: Bellingham/Eugene

1986 Chevrolet Camaro RS

PostPosted: Mon Apr 16, 2012 8:04 pm    Post subject: Reply with quote

The cold start isn't used until the outside temp is what, 20*F? I put a non-cold start rail in my V6.
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aaron_sK
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Joined: 23 Jan 2006
Posts: 8834
Location: Back in beautiful Tacompton

1987 Chevrolet Camaro IROC-Z

PostPosted: Mon Apr 16, 2012 8:08 pm    Post subject: Reply with quote

Unless the V6 uses a different sensor the cold-start system fires up to about 80* coolant temp IIRC.

John's car would not start cold without ether until we tuned the cold start into the chip.
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RSFreak
The other "John"


Joined: 23 Jan 2004
Posts: 2946
Location: Renton

1989 Chevrolet Camaro RS

PostPosted: Tue Apr 17, 2012 7:41 pm    Post subject: Reply with quote

BluFbdy wrote:
Al Hasse wrote:
#1 cylinder is the front passenger side, it's also the one tat sits the most forward on the block.


Dammit. Guess that would explain timing being so far off.... Well crap.


Made the same mistake the first time I tried to time my '89 RS! Laughing

I really enjoyed my LB8/T-5 combo. With decent gears, the little V6 feels strong. Cool

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