C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

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Old Jul 2, 2011 | 12:50 AM
  #21  
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Originally Posted by ConnecticutJunkman
I don't know whats diff between your 91 vs my 86 but a good universal joint, small mirror, and a few different sized extensions makes all the difference in the world.
On mine the ac compressor seems much larger than what I have seen on the earlier cars plus it seems like the engine is offset to the passenger side if that makes any sense. Taking the pass side front wheel and a small cover panel by the shock was a eal time saver on mine.
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Old Jul 2, 2011 | 01:15 AM
  #22  
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Originally Posted by ddahlgren
On mine the ac compressor seems much larger than what I have seen on the earlier cars plus it seems like the engine is offset to the passenger side if that makes any sense. Taking the pass side front wheel and a small cover panel by the shock was a eal time saver on mine.
I remember having to remove the inner front passenger front lower skirt off on some later C4's with the Sanden style A/C compressor to change out spark plugs on the passenger bank easily.

On my 87, I have the early Harrison "R" series A/C compressor.
Plenty of room to get to the passenger side spark plugs.

Its pretty easy to change all spark plugs on my car.
Can change out all 8 in under 10 minutes.
Have it down pat.
I change out spark plugs 2 or 3 times a year during driving season to keep a sharp tune on it.
I like standard copper core spark plugs.
Never been a fan of platinum or iridium tipped center electrode spark plugs.
My 87 engine don't like them.
$1.99 copper core Champions or $2.99 Accel 416's work best I have found.
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Old Jul 2, 2011 | 01:37 AM
  #23  
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Its been a while since I had to tune up a later C4 LT-1 powered Corvette.

I think it pays a mechanic & bills out at around 4.5 to 5.0 hours.

I used to get them done in 3.0 to 4.0 hours with a good smile & happy mood to begin with.

I felt like going home afterwards for the day after a complete ignition tune up on any GM LT-1 powered vehicle and making or beating GM flat rate time.

Its a tough job to tune up a 1990's LT-1 if you never have done it before.

18 inch long & 8" long Snap On or similar pick tool is your friend when tuning up a LT-1.

BR

Last edited by 87 vette 81 big girl; Jul 2, 2011 at 01:41 AM.
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Old Jul 2, 2011 | 05:52 PM
  #24  
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It takes me about 30 minutes to pull all eight plugs on my 95 LT1. It takes me a little bit longer than that to install the new plugs. I like to replace the plugs at least once a year. The wires are a bit of a pain without pulling the water pump.

I think that price is very reasonable for what he is doing and including the parts.
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Old Jul 2, 2011 | 07:07 PM
  #25  
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Originally Posted by Dr_Shakalu
For $400.00 he's going to replace all the parts (wires, plugs, O2 sensor, etc...)and the price includes labor. He already knows that he's going to spend a lot of time on it. Since I just got the car, he's charging me $585.00 for the full tune up, Mobil One synthetic oil change, flush the radiator and change the transmission fluid and filter. I trust this guy because I've known him for 30 years and he always gives me a big discount. Is $585.00 worth it?
Yes, the grief and frustration alone are worth $600, especially if you are not mechanically inclined.
All 4 O2's will be $300 in parts alone and $100 for plugs and wires, plus $30 for oil and $20 for tranny, then $20 for coolant and flush(tell him to be very careful, heater cores are easily broken during a flush and a royal PITA to replace).

So he is only charging $470-80 in parts, so he is only charging $100 in labor.
Wow, that is one sweet deal.
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Old Jul 2, 2011 | 07:09 PM
  #26  
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Originally Posted by rickreeves1
It takes me about 30 minutes to pull all eight plugs on my 95 LT1. It takes me a little bit longer than that to install the new plugs. I like to replace the plugs at least once a year. The wires are a bit of a pain without pulling the water pump.

I think that price is very reasonable for what he is doing and including the parts.
Once a yr for plugs, if you are not driving 30-40k miles a yr, that is crazy.
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Old Jul 2, 2011 | 08:32 PM
  #27  
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Originally Posted by Dr_Shakalu
For $400.00 he's going to replace all the parts (wires, plugs, O2 sensor, etc...)and the price includes labor. He already knows that he's going to spend a lot of time on it. Since I just got the car, he's charging me $585.00 for the full tune up, Mobil One synthetic oil change, flush the radiator and change the transmission fluid and filter. I trust this guy because I've known him for 30 years and he always gives me a big discount. Is $585.00 worth it?
Doctor, if you can't do it yourself, the question is, what's it worth to you? For what you're expecting, my guess is twice that would not be out of line. He will spend 1-2 hrs on the plugs alone, if he checks gap, uses anti seize on trds.
Or do the stuff that you can and let him do the "tech" stuff.

Follow the advice and have your GM dealer quote it.
jc
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Old Jul 2, 2011 | 09:24 PM
  #28  
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He has a shop. It's funny. Everytime you drive by, there's always a line for an oil change. He charges $30 for regular and $60 for synthetic. He Mexican and used to be a chollo, driving classic lowriders. His father was a mechanic also and he knew alot of people. My friend learned from his father and from all the friends. He is also my son's Godfather.


Originally Posted by TWISTERUP
If he's doing all the above and ALL the O2 sensors for $585--that is a heck of a deal. I understand you've known the guy a long time, but as someone said you better jump on that before he changes his mind. I've got to ask since I'm in the business-- Is this mechanic doing this for you in a repair shop or on the side at house?
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Old Jul 2, 2011 | 11:22 PM
  #29  
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It takes me about 30 minutes to pull all eight plugs on my 95 LT1. It takes me a little bit longer than that to install the new plugs.
It takes me 30 minutes to run to the store for a 12 pack before I'll even start that wretched job. I've got to use shorty spark plug sockets, 5/8" wrenches, 3/4 wrench for the socket, regular spark plug socket......hell, by the time I've found enough tools Ive already consumed 3 beers. On the Impala SS I used to pull the passenger header. I got new headers.

Then the socket falls on the floor about 6 times, gotta stand on your head to get it and wait for the blood to leave your head and the dizziness to go away before restarting. Time for another beer though. Half way through the girlfriend's lawnmower breaks and ya gotta go fix that or the grass will get too high to mow. But first you've got to go to the medicine cabinet and put peroxide on all the scrapes you got while changing that first plug. Then the band-aids after the bleeding stops. I love it. There goes another two hours.....including the 10-15 minutes that she showed her gratitude.

It's an all day job for me, Hey Doc, you should try it yourself and see how much fun you're missing. Personally, I'd rather try to shove a wet noodle up a wildcat's butt.

Last edited by 1963SS; Jul 2, 2011 at 11:25 PM.
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Old Jul 2, 2011 | 11:25 PM
  #30  
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Originally Posted by 1963SS
It takes me 30 minutes to run to the store for a 12 pack before I'll even start that wretched job. I've got to use shorty spark plug sockets, 5/8" wrenches, 3/4 wrench for the socket, regular spark plug socket......hell, by the time I've found enough tools Ive already consumed 3 beers. On the Impala SS I used to pull the passenger header. I got new headers.

Then the socket falls on the floor about 6 times, gotta stand on your head to get it and wait for the blood to leave your head and the dizziness to go away before restarting. Time for another beer though. Half way through the girlfriend's lawnmower breaks and ya gotta go fix that or the grass will get too high to mow. There goes another two hours.....including the 15 minutes that she showed her gratitude.

It's an all day job for me, Hey Doc, you should try it yourself and see how much fun you're missing. Personally, I'd rather try to shove a wet noodle up a wildcat's butt.
Please explain, this sounds like a good one.
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Old Jul 3, 2011 | 07:25 AM
  #31  
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Originally Posted by 1963SS
It takes me 30 minutes to run to the store for a 12 pack before I'll even start that wretched job. I've got to use shorty spark plug sockets, 5/8" wrenches, 3/4 wrench for the socket, regular spark plug socket......hell, by the time I've found enough tools Ive already consumed 3 beers. On the Impala SS I used to pull the passenger header. I got new headers.

Then the socket falls on the floor about 6 times, gotta stand on your head to get it and wait for the blood to leave your head and the dizziness to go away before restarting. Time for another beer though. Half way through the girlfriend's lawnmower breaks and ya gotta go fix that or the grass will get too high to mow. But first you've got to go to the medicine cabinet and put peroxide on all the scrapes you got while changing that first plug. Then the band-aids after the bleeding stops. I love it. There goes another two hours.....including the 10-15 minutes that she showed her gratitude.

It's an all day job for me, Hey Doc, you should try it yourself and see how much fun you're missing. Personally, I'd rather try to shove a wet noodle up a wildcat's butt.
I hear you! Time is relative to our mental frame and to our environment, we all know that. 'Installing injectors' is the simplest thing I ever did! It was the other 6 hrs of frustrating work that was the problem. Installing plugs is easy, the same way.

thanks for a dose of reality. I fogot to mention that sometimes the back and body are just not as limber as you thought, either.
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Old Jul 3, 2011 | 07:58 AM
  #32  
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If quality parts are included, this deal sounds almost too good to be true.
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Old Jul 3, 2011 | 03:59 PM
  #33  
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Originally Posted by surfer93
Once a yr for plugs, if you are not driving 30-40k miles a yr, that is crazy.
I run nitrous. Some guys change them after every trip to the track.

Originally Posted by STL94LT1
If quality parts are included, this deal sounds almost too good to be true.
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