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10/16/15 10:30pm - Reply: 'Re: Fluid Leak...Not Sure What This Is'
Jasond56
Former Member
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Kenosha, WI - USA

Vette(s):
1973 Corvette Stingray Coupe VIN 1Z37J3S418986 350 L-48 Automatic T-Tops St. Louis Assembly, 18,986th car built in 1973, Paint = 976 Mille Miglia Red, Interior = 425 Dark Red Vinyl (Ox Blood)

Joined: 5/7/2014
Posts: 154
Update on the water pump misadventures...

Took off the WP on Monday.  There were 3 loose bolts in total.  Took of the back plate, replaced the gasket with a nice new one.  Sealed with Indian Head sealer.  Bolted the back on again, nice and tight.  Bolted the WP onto block. 

Had to go out of town for work, got back into garage this afternoon.  WP sat and dried for 4 days.  Filled up the rad with water today...and she pissed from the WP like a racehorse once again.  Unbelievable.

Removed the pump, re-tightened the back bolts just to be sure and SNAP!  One bolt snapped flush IN the pump.  I'm done.  New AC Delco WP is purchased and going in tomorrow.

Also, decided to NOT pain the WP this time.  I'm wondering of coats of primer then paint somehow warp the back housing gasket and push the bolts out of whack??

Jason




|UPDATED|10/16/2015 7:30:33 PM (AZT)|/UPDATED|


____________________________________
"You know, we always called each other goodfellas. Like you'd say to somebody: You're gonna like this guy, he's all right. He's a goodfella. He's one of us. You understand?"




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10/18/15 7:59pm - Reply: 'Re: Fluid Leak...Not Sure What This Is'
Jasond56
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Kenosha, WI - USA

Vette(s):
1973 Corvette Stingray Coupe VIN 1Z37J3S418986 350 L-48 Automatic T-Tops St. Louis Assembly, 18,986th car built in 1973, Paint = 976 Mille Miglia Red, Interior = 425 Dark Red Vinyl (Ox Blood)

Joined: 5/7/2014
Posts: 154
Update:  The new water pump is in, everything is reassembled, and the car runs GREAT!  Had to tighten up the new upper rad hose after a nice long ride and the lower rad hose where it meets water pump.  Now everything is nice and dry!  She ran great!

The only thing, I got some oil blow out from the new aluminum valve covers on both sides (passenger and driver) in the exact same spot: in the middle of the valve cover on the side that is closest to manifold.  I am wondering if the valve cover bolts have to be re-tightened after the first ride (after everything got nice and hot) just like the radiator hoses had to be re-tightened?  Originally, when I placed the new valve covers, I read online to torque the bolts to 5lbs.  It felt really tight so I never tightened the full 5 lbs to avoid cracking cork gaskets.  Thoughts?

Jason


____________________________________
"You know, we always called each other goodfellas. Like you'd say to somebody: You're gonna like this guy, he's all right. He's a goodfella. He's one of us. You understand?"




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10/19/15 2:17pm - Reply: 'Re: Fluid Leak...Not Sure What This Is'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
 Glad yer water leak is fixed, but...
Make sure the bolts you're using for the valve covers are not too long. They may be bottoming out before actually tightening the cover down onto the gasket. There are thick and thin vc gaskets, too. Aluminuminum vcs work best with the thick ones...just be sure your bolts are not too long, and be absolutely certain there are no small chunks(hi-tech term) of old gasket left on the heads. Big smile

Hang in there brotha....you'll get there!


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Joel Adams
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10/19/15 2:28pm - Reply: 'Re: Fluid Leak...Not Sure What This Is'
Jasond56
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Kenosha, WI - USA

Vette(s):
1973 Corvette Stingray Coupe VIN 1Z37J3S418986 350 L-48 Automatic T-Tops St. Louis Assembly, 18,986th car built in 1973, Paint = 976 Mille Miglia Red, Interior = 425 Dark Red Vinyl (Ox Blood)

Joined: 5/7/2014
Posts: 154
Thanks for the reply, Adam's!

I made sure those heads were free of debris before I placed the covers.  I will double-check, but I am certain the new bolts tightened down completely.  I tried the 5lbs torque but stopped because I was afraid to crack the cork.  Do you think I should just torque all the way to 5 without backing off?

I would say the cork is medium thickness...not paper thin and not the really thick ones.  They came with the covers and were in good shape, not brittle or anything. 

I will say one thing, placing the passenger valve cover with the AC still attached is not fun Thumbs Down

Jason D.


____________________________________
"You know, we always called each other goodfellas. Like you'd say to somebody: You're gonna like this guy, he's all right. He's a goodfella. He's one of us. You understand?"




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10/19/15 6:24pm - Reply: 'Re: Fluid Leak...Not Sure What This Is'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
Jasond56 said:I will say one thing, placing the passenger valve cover with the AC still attached is not fun Thumbs Down

LOL  I TOLL you!! LOL

btw...are you saying you have actual liquid oil coming out, or smoke/vapor? If it's just smoke/vapors, it's possible that it's just oil that got onto the exhaust manifold while you had the covers off and that oli is just burning off....it might take quite a few mile of driving to get all that burnt off. If it's liquid oil, then you definitely have a serious leak there...





|UPDATED|10/19/2015 3:24:27 PM (AZT)|/UPDATED|


____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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10/19/15 6:34pm - Reply: 'Re: Fluid Leak...Not Sure What This Is'
Jasond56
Former Member
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Kenosha, WI - USA

Vette(s):
1973 Corvette Stingray Coupe VIN 1Z37J3S418986 350 L-48 Automatic T-Tops St. Louis Assembly, 18,986th car built in 1973, Paint = 976 Mille Miglia Red, Interior = 425 Dark Red Vinyl (Ox Blood)

Joined: 5/7/2014
Posts: 154
Okay - I figured out the "leak".  Good news and bad.  Good news, it's not a valve cover leak!  Bad news, I think the POR15 engine paint I used to paint the engine actually burned in those two spots.  I have included pics.  No leaking from the covers...the edge of the valve cover is completely clean on both sides of the car, as is the manifold area directly in front of the cover (where cover meets manifold).  It's the paint!  Grrr. 

Driver's Side



Passenger Side



____________________________________
"You know, we always called each other goodfellas. Like you'd say to somebody: You're gonna like this guy, he's all right. He's a goodfella. He's one of us. You understand?"




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10/19/15 6:42pm - Reply: 'Re: Fluid Leak...Not Sure What This Is'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
That's the EGR passages in the manifold. It gets REALLY hot right there, and it's gunna be hard to find a paint that will survive there. Another thing is, the paint may not have had enough time to completely cure before firing the engine up the first time, but it shouldn't take more than 1 day to fully cure, so....
At least it ain't a leak!
You need to check your heat riser valve on the passenger side exhaust, right where the headpipe bolts up to the manifold. If that thing is stuck closed, it will definitely push all of the exhaust from the passenger side back up thru the intake manifold....and burn the pee out of the paint.....Ermm

|UPDATED|10/19/2015 3:42:48 PM (AZT)|/UPDATED|


____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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10/19/15 6:42pm - Reply: 'Re: Fluid Leak...Not Sure What This Is'
Jasond56
Former Member
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Kenosha, WI - USA

Vette(s):
1973 Corvette Stingray Coupe VIN 1Z37J3S418986 350 L-48 Automatic T-Tops St. Louis Assembly, 18,986th car built in 1973, Paint = 976 Mille Miglia Red, Interior = 425 Dark Red Vinyl (Ox Blood)

Joined: 5/7/2014
Posts: 154
For those who have seen my project through to the end with me, I wanted to show you how the engine compartment turned out!  New water pump is in and working perfectly.  Anything red or orange was hand painted: Manifold, front of block, brackets, pulleys, air cleaner, vent pipe.  New valve covers.  New air cleaner rubber.  New Hood insulation. 

I'm REALLY excited how it tuned out.  Thanks for all the help and support throughout this project!!!  You guys rock!










____________________________________
"You know, we always called each other goodfellas. Like you'd say to somebody: You're gonna like this guy, he's all right. He's a goodfella. He's one of us. You understand?"




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10/22/15 2:08pm - Reply: 'Re: Fluid Leak...Not Sure What This Is'
Jasond56
Former Member
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Kenosha, WI - USA

Vette(s):
1973 Corvette Stingray Coupe VIN 1Z37J3S418986 350 L-48 Automatic T-Tops St. Louis Assembly, 18,986th car built in 1973, Paint = 976 Mille Miglia Red, Interior = 425 Dark Red Vinyl (Ox Blood)

Joined: 5/7/2014
Posts: 154
Thank you, Adam's!  I will check the heat riser valve today.  Really disappointing about the paint in the EGR areas.  POR15 came highly recommended as far as engine heat is concerned.  I wonder what other people do to keep those areas looking nice?

Good news!  Called O&G Water Pump in TX and they are fixing the OEM WP at no charge!  Even paid for shipping!  I'm not going to install the OEM, because this after market is working, and, well, if it ain't broke...!  At least I have the original, rebuilt in the event I ever sell the car.

Jason

____________________________________
"You know, we always called each other goodfellas. Like you'd say to somebody: You're gonna like this guy, he's all right. He's a goodfella. He's one of us. You understand?"




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10/23/15 8:59am - Reply: 'Re: Fluid Leak...Not Sure What This Is'
Redwoman Gold Member
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Bellingham, MA - USA

Vette(s):
1980 loaded red on red. 68,000 original miles. Second owner. Well documented with all original paperwork. NCRS Founders Award 9/27/14. NCRS Top Flight 10/12/14.

Joined: 6/23/2014
Posts: 171
Looks freaking AWESOME! I have been following this thread from the get go. Let us know what they find with the pump and they are doing what they should be, covering shipping etc. Good customer service. What are your future plans? Have car judged by NCRS or local car shows or drive it and enjoy it. It is nice to have the original parts but if you plan on driving I would suggest when something needs to be replaced ex. wp, alt, starter I would put the original on a shelf labeled and use after market parts. You probably paid more to have original WP rebuilt then you paid for the new delco pump. If you are going to have it judged by NCRS then you need the original parts with GM part numbers and date. I had the exact same oil cap you have and it was not very good quality and didn't seal good. I will check my inventory I should have a GM cap that will look like the original with the S stamped in the rivet. If I have it send a pm or call me and I would gladly ship it to you for a corvette warming present.

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10/23/15 12:37pm - Reply: 'Re: Fluid Leak...Not Sure What This Is'
F4Gary Gold Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.

Joined: 8/26/2006
Posts: 862
That is definitely the side to side exhaust channel that goes under the carb.  I wired my heat riser to stay open all the time.

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10/23/15 1:24pm - Reply: 'Re: Fluid Leak...Not Sure What This Is'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
If the heat riser is stuck closed/partially closed, it wouldn't matter what brand of paint you used...it would still get burned. It would be the same thing as painting the exhaust manifold with regular paint....it would burn it right off.
The heat riser being stuck will also cause engine running problems, including overheating, and...think aboot this...fuel percolating in the carb...which would make it stumble at times, and run rough. Dint you have an issue like that just recently?



 (view looking UP from underneath)


|UPDATED|10/23/2015 10:24:19 AM (AZT)|/UPDATED|


____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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10/23/15 9:52pm - Reply: 'Re: Fluid Leak...Not Sure What This Is'
Jasond56
Former Member
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Kenosha, WI - USA

Vette(s):
1973 Corvette Stingray Coupe VIN 1Z37J3S418986 350 L-48 Automatic T-Tops St. Louis Assembly, 18,986th car built in 1973, Paint = 976 Mille Miglia Red, Interior = 425 Dark Red Vinyl (Ox Blood)

Joined: 5/7/2014
Posts: 154
Hey Guys - Went underhood this evening:

POR15 engine paint: I let the paint cure a week between coats and a few weeks after the last coat.

The heat riser valve:  Thank you for the pic, Adam's.  Found it.  While the car is cold, there is a bit of "Stickiness" to the valve, but it does move.  When the car is hot, it moves freely, no stickiness at all.  Hopefully that is a good thing!  A friend of mine said that someone probably changed the intake gasket at some point and did not include the "metal restrictor plates", but it will be fine.  Said to paint the area a few more times and it should be good...could this be true?

Sputtering gas, running issues: No overheating.  No gas shooting from carb, and in my opinion the car runs and idles great.  I do not race the car around often at all so I cannot really comment on sluggishness.  The only issue I seem to still experience is the dieseling when I turn off the car ONLY after a good hard run.  Adam's, I believe this is the issue you were thinking of.  I readjusted the carb today and hopefully that will stop the dieseling...unless there's something else I can check?  It started raining so I couldn't take the car out to test for dieseling.

RedWoman - Thank you very much!!  I'm really proud of the results!  And thank you for the generous offer on the cap!  I'll gladly take you up on that offer :)  I will try to give you a call this weekend and send you a PM as well.  My plan for the car is to keep it as original as possible.  I would love for NCRS to look it over and judge it once to see where I stand and take it from there as finances allow.  Honestly, show quality or not, just having it in the garage makes me a very happy man!  The only thing I really care about is making it safe for when my son takes it over.

I think I addressed all of your points.  Thanks again, All!

Jason






|UPDATED|10/23/2015 6:52:08 PM (AZT)|/UPDATED|


____________________________________
"You know, we always called each other goodfellas. Like you'd say to somebody: You're gonna like this guy, he's all right. He's a goodfella. He's one of us. You understand?"




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10/23/15 10:37pm - Reply: 'Re: Fluid Leak...Not Sure What This Is'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
Jasond56 said: A friend of mine said that someone probably changed the intake gasket at some point and did not include the "metal restrictor plates", but it will be fine.


That's certainly a possibility, Jason. Thumbs Up


____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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