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Mechanical / Re: Coolant leak how to fix
« Last post by formula46two on May 03, 2024, 09:22:00 PM »Thanks I will tackle this Sunday..
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Exterior / Re: Hood alignment. My next impossible mission.
« Last post by tinpusher on May 03, 2024, 08:29:47 PM »I concur with all of the above. I would set the door body line high to the quarter panel and remove the striker.
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Mechanical / Re: Boosting a 301 (for fun)
« Last post by FormTA on May 03, 2024, 04:41:26 PM »Ya, I should probably give him a call. He runs them the way they were originally, a where the carburetor or throttle body efi is before the turbo. I want to have the TBI on the standard intake and blow through it. I'm not sure he has ever done that but I'm sure he would know more than I. I was hoping someone who has turbo something or who runs sniper efi will chime in too.
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Tires, Brakes & Suspension / Turn signal cam
« Last post by jbanna on May 03, 2024, 12:31:50 PM »Ok, after centering the new gear, the steering wheel, and getting a shop to align the wheels, my turn signal cam is off a bit - when I turn right it clicks off too early, but when I turn left it clicks off way too late...any ideas? Can I pull the hub and adjust it?
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Mechanical / Re: Clutch Fan
« Last post by nUcLeArEnVoY on May 03, 2024, 11:20:12 AM »A standard duty clutch fan was what was equipped from the factory, which would be a Hayden 2705. This was even for AC cars.
Most owners upgrade to the Heavy Duty 2747, which is JUST barely applicable for the 18.5-19" Pontiac 400 or Olds 403 fans. This is what I use and it cools very well.
Still, others overkill and use the Severe Duty 2797. The issue with using this clutch is that it is meant for fans with a much larger pitch than any factory fan, and as a result it is pretty much engaged 100% of the time. This overcools the motor as well as robs engine power due to how stiff it is.
Most owners upgrade to the Heavy Duty 2747, which is JUST barely applicable for the 18.5-19" Pontiac 400 or Olds 403 fans. This is what I use and it cools very well.
Still, others overkill and use the Severe Duty 2797. The issue with using this clutch is that it is meant for fans with a much larger pitch than any factory fan, and as a result it is pretty much engaged 100% of the time. This overcools the motor as well as robs engine power due to how stiff it is.
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Mechanical / Re: Coolant leak how to fix
« Last post by nUcLeArEnVoY on May 03, 2024, 11:11:32 AM »Probably the most notorious coolant leak point on a Pontiac motor.
As others have said, you only bolt down the intake not even finger tight; and you tighten the draw bolt first to effectively "pull" the intake into the timing cover to compress the donut seal. The spec is 15 lb-ft, but it goes more by feel since that draw bolt is prone to snapping easily. Once that's torqued, THEN you torque the intake bolts to spec.
A bead of RTV along the machined flange on either the intake or timing cover is permissible for a little extra insurance. Shouldn't have to put any on the donut itself.
As others have said, you only bolt down the intake not even finger tight; and you tighten the draw bolt first to effectively "pull" the intake into the timing cover to compress the donut seal. The spec is 15 lb-ft, but it goes more by feel since that draw bolt is prone to snapping easily. Once that's torqued, THEN you torque the intake bolts to spec.
A bead of RTV along the machined flange on either the intake or timing cover is permissible for a little extra insurance. Shouldn't have to put any on the donut itself.
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Mechanical / Re: Boosting a 301 (for fun)
« Last post by 5th T/A on May 03, 2024, 10:45:56 AM »Luke, this is the guy you should talk to https://ttaperformance.com/my-turbo-cars
Actually I think you already have a relationship. Isn’t this where you get your flywheel from? He probably is the most knowledgeable guy out there on th 301 turbo. He has integrated EFI and run 12.85 quarter miles with his 301 turbo TA.
Actually I think you already have a relationship. Isn’t this where you get your flywheel from? He probably is the most knowledgeable guy out there on th 301 turbo. He has integrated EFI and run 12.85 quarter miles with his 301 turbo TA.
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Mechanical / Re: Boosting a 301 (for fun)
« Last post by N PRGRES on May 03, 2024, 10:28:35 AM »Its a 301, you can't make it any worse! Sounds like a fun experiment!
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Mechanical / Re: Coolant leak how to fix
« Last post by 5th T/A on May 03, 2024, 08:46:15 AM »Years ago I installed many Pontiac intakes without leaking problems pretty much the same as Brian mentioned, having the intake to head bolts started, then draw the intake forward with the single water pump bolt. I might have used some Permatex aviation formagasket on the O-ring doughnut. I read somewhere there were problems with some of the new doughnuts not being thick enough. Not confirmed.
I also like to use a cooling system pressure tester on the system putting about 15 PSI while checking for leaks. This allows leak testing without topping off the cooling system or running the engine. I bought mine forty years ago. Most auto parts stores will lend one for free.
I also like to use a cooling system pressure tester on the system putting about 15 PSI while checking for leaks. This allows leak testing without topping off the cooling system or running the engine. I bought mine forty years ago. Most auto parts stores will lend one for free.
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Mechanical / Re: Coolant leak how to fix
« Last post by b_hill_86 on May 03, 2024, 08:19:40 AM »You’ll want to replace the intake gaskets too of course and a little RTV can help with the o ring too
