Everything posted by Jeff G 78
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Head, not sure if head gasket or head cracked at this stage.
Yes, the head can be pulled with the intake and exhaust in place as long as the exhaust manifold is stock. 6-into-1 headers are a different story since they wrap under the tunnel. Pulling the head and manifolds as an assembly are harder on the back since the weight goes way up. If the head needs any work, the shop will want the manifolds off anyways, so it's usually not worth leaving them on. It's very possible that they will find a broken stud at the rear of the head when they remove the exhaust manifold. If that's the case, they will need the manifold off to install a Heli-Coil. Good luck with the repairs on both car!
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Valve Cover Red Goop?
I have found large chunks of the original stuff in my oil pan. Luckily, it went down the front cover into the pan and just sat there. I found no marks on the debris, so I wasn't too worried about finding it. I did make sure there was no loose sealer in the valve cover baffle before I put the cover back on.
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the winter from hell
I resemble that remark.
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What's in YOUR garage?
No GT40, but I've driven lots of Ford GT's.
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Diagnosing Valve Train Noise
Hmmm, yeah that is pretty loud. It sounds more mechanical than exhaust, but it's still possible it's an exhaust leak. The gasket could be blown out and still leaking even though the nuts are tight. Hold a 2 foot long rubber hose to your ear and move the other end around the manifold. You will be able to hear the air rush if the manifold is leaking. Just throwing ideas out... What about a dead valve spring??? It's quiet at idle, but gets louder at higher RPM. If a spring is weak it could be floating the valve.
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the winter from hell
Just when we though we were done, we got hit again last night. It was 78° Sunday and it was 24° last night with 4 more inches of snow. The good(?!?!) news is that we broke the all-time snowfall record for Metro Detroit that dated back to the winter of 1880-1881.
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front air dam
That's a great price from Jegs. Shipping is always the expensive part of aero components.
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What's in YOUR garage?
Another beauty Guy! Congrats on the new addition.
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Tokico illumina. Is this correct?
It keeps turning. It's simply turning a disk with 5 different size holes, so it makes sense that there is no end stop.
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What a difference a set of wheels makes
I like that size. Hopefully, 15" performance tires are still available for years to come.
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Engine Bay black or body color?
Body color for sure. Black can look good, but it is usually hiding something, so when Z experts see the black engine bay, that's what they immediately think.
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Head, not sure if head gasket or head cracked at this stage.
$525 sounds about right to do the head gasket job. If the head is warped, only let them mill it if they know what they are doing. Milling the bottom-only will seal the head to the block, but the warp will still be in the head. N47 heads are cheap, so if the head has issues, try to find a good used one. I would expect to pay about $100 - $150 for a good used N47. I would verify that it measures flat and is full thickness though prior to purchase. The head should be 108mm tall from the valve cover surface to the bottom. Be sure to have them replace the valve seals while apart. It's much easier off the car and they are likely shot on your current head as well as any used head you would buy. Has the engine ever overheated prior to the dead cylinder? If not, it could be a simple head gasket job. Good luck.
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which country made the panasport wheels?
Panasports are made in Japan. The ones made in China are other Minilte copies. Panasports are stronger and are worth more than the similar-looking Chinese wheels.
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Drat!
Sorry to hear about your engine. Like you said, something must have corroded/stuck during storage.
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240z Brake bleeding issues. Faulty master cylinder?
Tomzern, the way that most Z guys and gals find works best is to attach a tight-fitting 6" long hose to the MS's front bleed valve with the free end submerged into the reservoir under the fluid level. Now crack the bleeder and simply pump the pedal slowly up and down until no more bubbles appear. Close the bleeder and repeat for the rear bleeder. Using this method, I've never failed to get an air-free MC. If you open the bleeder too far or can't get the bubbles to stop, remove the bleeders and add a light coat of grease to the threads to seal them with the bleeder is cracked open.
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240z Brake bleeding issues. Faulty master cylinder?
How are you bleeding the MC? It is critical to get the MC bleed right before moving to the corners.
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Steering wheel vibration/wobbling problem still not found
Glad to hear you found the problem.
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which engine to go with?
$8500 will get you a nice powertrain. I paid $500 for a donor '82 F54 engine, 5 speed trans and 3.90 diff and then put another $1000 in machining and parts. You would still need an intake, carbs and a header, but for $3000 you should be able to build a nice complete engine. I'm not sure what a Rebello engine costs, but you are probably in the ballpark of your budget. I'd strongly consider going with ZTherapy SU carbs when you build your motor unless you really want triples. Triples are harder to tune, but they sound great and make better power on a modified engine.
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which engine to go with?
What is your budget and what are you going to use the car for once built? There are lots of choices and there isn't one right answer. Some like strokers, some like high revving motors, and others like turbos. What about fuel delivery? Are you going to stick with SU's or swap to triple carbs? You can give Rebello a call and get anything you want, but it won't be cheap. A simple DIY build will cost between $1000 and $2000 for the engine plus whatever carbs you go with. Those will be $200 to $1500.
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Replacing exhaust manifold
Obviously, the head and/or manifold has been replaced as a '76 should have an N42 with square exhaust ports. Be sure to verify that the head is an N47. It's possible that a PO replaced only the manifold and used the wrong one. Assuming they were replaced together, you should be able to find a used replacement manifold. I've probably scrapped several of them over the years. I'm not sure if I have any in storage. The problem with rust belt cars is that the outlet studs tend to twist off.
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1975 Datsun 280Z ITS SCCA race car
Hey Chuck, It looks like your Z will be coming to Michigan. Chris, who bought, it is a friend of mine and I'm sure he'll take good care it it.
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Steering wheel vibration/wobbling problem still not found
Yes, that amount of radial runout could cause the issue depending on the reason for the runout. When you try Chas' wheels, I'll bet the vibration goes away.
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Engine removal help 1970 240z Melbourne, Florida
See, now you are an expert and you can give others advice. Good job guys.
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Engine removal help 1970 240z Melbourne, Florida
Looking good. Your hoist boom will be nice and long. No need to remove the bumper with that hoist.
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Engine removal help 1970 240z Melbourne, Florida
Like siteunseen said, you need to mark the hinges because the hood has lots of adjustment room at those bolts. I have removed my hood so many times that I have the system down pat to remove it alone without damaging the paint. I pull the two bolts on one side and slide a small phillips screwdriver through one of the holes with the handle on the radiator side of the hole. I then go around the other side and pull the other two bolts most of the way out while holding the hood still. I still have a strong hold on the hood while I stand directly in front of the car and finish removing the two bolts. At that point, I can slide the hood sideways off the screwdriver blade and remove the hood from the car. Be sure to have a safe place ready to stand it with towels or foam rubber padding to keep the paint safe. Installation is the opposite of removal.