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Old 08-30-2009, 11:55 AM   #91
dan03820
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Re: DIY intake questions

What size wrench do I need for the EGR line?

Dan
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Old 02-10-2010, 09:07 PM   #92
trixterrrr
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Re: DIY intake questions

I have a 2000 tahoe with a 5.7 vortec and replace the injector spider assembly. Can anyone tell me the proper torque for the upper (plastic) intake manifold? I have a chiltons, but it dosen't show this style for the v8's. It shows this style for the 4.3 v6 and shows a torque of 44 in/lb and 88 in/lb. Can anyone tell me if they are the same for the v6 and v8?


Thanks
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Old 04-05-2010, 04:31 PM   #93
william_04_x
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Re: DIY intake questions

I'm knee deep in mine right now. Took about 4 hours to get the IM out. Thank you guys for posting up so much good info.



Now for the fun of putting it all back together.
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Old 04-05-2010, 09:59 PM   #94
william_04_x
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Re: DIY intake questions

Got everything back together and so far, so good. Need to do an oil change tomorrow. Didn't take much coolant to make the oil a real milkshake. The truck starts and idles smoothly now. First start was a little rough. Didn't want to idle. Forgot to re-connect the brake booster hose to the IM nipple.

Thanks again.
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Old 02-19-2012, 10:16 AM   #95
BajaScout
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Re: DIY intake questions

Here is some pretty good insight on intake manifold gaskets related to the sealing issues on the 5.7L and other motors:

http://www.enginebuildermag.com/Arti...d_gaskets.aspx

Well I decided to change the infamous intake manifold gasket on my 98 C1500 with 108K miles. I have owned the truck since it had 20K miles on it. In the past I have replaced the water pump, heater quick disconnect fitting, alternator, AC compressor, and shocks. The biggest issue with the truck has been the premature distributer cap failure. To combat that, I have 2 caps. I take the corroded cap off and clean it with a soft wire brush on a Dremel. Keeps me from buying $45 caps all the time. Overall the truck has been a good truck. I have done all the work myself except for the AC compressor. I was traveling through Arizona and New Mexico in the summer when it disintegrated.
In addition to replacing the intake manifold gasket (MS98000T), I will be putting in a new 2 row radiator (Ready-Rad 0431334), new radiator cap (AC Delco 15982188), a new thermostat (Stant 14119), a new water pump (AC Delco 252-711) and a new heater quick disconnect fitting (Dorman 800-401). The water pump is 5 or 6 years old and the quick disconnect fitting was replaced with a dealer pot metal fitting. The Dorman 800-401 fitting looks to be stainless, though it may just be polished steel. Parts were purchased from Amazon and Rock Auto. I have been working on cars most of my life and consider myself an average home mechanic. I did take some classes in automotive repair at a community college in the late 90's. I have a fairly good assortment of tools. I am also purchasing the 1/2" 14 NPT tap (Vermont American 20374), the quick disconnect removal tool (Lisle 62200) and a heater hose removal tool (OTC 6046). Can't miss the opportunity to gain a few more tools. I anticipate all the parts will be here in 2 weeks. My goal is to complete the job on the weekend of 3-4 March depending if all the parts are here.
I will follow the instructions in this thread along with Suburban 97's web site: http://www.market-place.com/intake/intake.htm. I will also take some pictures and post then here or send them to Suburban 97 for inclusion on his web site. I have access to online auto repair manuals so that should help.
See you in a couple weeks with an update!

Last edited by BajaScout; 02-20-2012 at 04:31 PM.
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Old 03-09-2012, 08:34 AM   #96
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Re: DIY intake questions

I forgot the brake booster hose also. Even though I read this blog several times! I was a little worn out after all the work replacing the IM gasket.
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Old 04-22-2012, 05:32 PM   #97
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Re: DIY intake questions

98 C1500 5.7KL

After replacing the intake manifold gasket everything was fine for about 30 days. Then I developed a coolant leak in the rear again. I decided to do the job again with another new gasket. Job went faster this time, but the truck will not start. I had marked the distributer and was careful taking it out and putting it back in. I have fuel pressure at the relief valve. Also verified I had spark. When all else failed I decided to pull the distributer again and reinstall. This time I set the engine at TDC with the timing mark aligned at TDC. I used a compression gauge to be sure I was on the compression stroke. I then aligned the dimple below the distributer gear with the white mark on the distributer shaft. I installed the distributer ensuring the rotor contact pointed to the distributer housing mark with the number 8 on it. Still won't start. Cranks nicely but doesn't kick in. Did several checks to be sure I did not leave any electrical connectors disconnected. Also reverified by TDC settings for number 1 cylinder on the compression stroke and the position of the rotor pointing to the timing mark on the distributer. Lost at this point. Any ideas?
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Old 04-23-2012, 05:31 AM   #98
rhandwor
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Re: DIY intake questions

Quote:
Originally Posted by BajaScout View Post
98 C1500 5.7KL

After replacing the intake manifold gasket everything was fine for about 30 days. Then I developed a coolant leak in the rear again. I decided to do the job again with another new gasket. Job went faster this time, but the truck will not start. I had marked the distributer and was careful taking it out and putting it back in. I have fuel pressure at the relief valve. Also verified I had spark. When all else failed I decided to pull the distributer again and reinstall. This time I set the engine at TDC with the timing mark aligned at TDC. I used a compression gauge to be sure I was on the compression stroke. I then aligned the dimple below the distributer gear with the white mark on the distributer shaft. I installed the distributer ensuring the rotor contact pointed to the distributer housing mark with the number 8 on it. Still won't start. Cranks nicely but doesn't kick in. Did several checks to be sure I did not leave any electrical connectors disconnected. Also reverified by TDC settings for number 1 cylinder on the compression stroke and the position of the rotor pointing to the timing mark on the distributer. Lost at this point. Any ideas?
I've missed the compression stroke in the past feeling for air in the plug hole. I would retry and make sure it didn't pass TDC. Normally you will get some backfire if your out of time.
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Old 04-23-2012, 05:48 AM   #99
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Re: DIY intake questions

Quote:
Originally Posted by rhandwor View Post
I've missed the compression stroke in the past feeling for air in the plug hole. I would retry and make sure it didn't pass TDC. Normally you will get some backfire if your out of time.
rhandwor,
I used a compression gauge to be sure I was getting pressure. Checked it three times. Always worth another check to be sure though. Thanks.
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