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  1. J

    Help! 66 lose of power when warmed up, everytime.

    Sounds like fuel percolation, a common problem these days. Does the Edelbrock manifold have an exhaust crossover passage? Is it blocked? Is your heat riser valve wired open? Is the electric choke connected and adjusted properly? :thumb
  2. J

    1965 Coupe Steering wheel shake

    The correct procedure for proper adjustment of the steering gear is shown in detail in Section 9 of the 1963 Corvette Shop Manual (the '65 Shop Manual is a supplement - it also requires the full 1963 Manual for complete coverage). Note that if this procedure is performed incorrectly, it can...
  3. J

    A basket case 61

    That operation is covered in great detail in the ST-12 Manual ("1953-'62 Corvette Servicing Guide"), which is the only shop manual ever published for the C1 Corvettes; all of the usual Corvette parts vendors have it, plus the NCRS on-line store at http://www.ncrs.org/ | National Corvette...
  4. J

    Question: 1967 Corvette&RPOK66 (If equipped)

    The K66 pulse amplifier was mounted on the forward side of the inner fender on the driver's side, behind the headlamp assembly, as shown in Section K66 in the Assembly Manual; 327 or 427 made no difference. :thumb
  5. J

    Question: 1967 Corvette RPOL71&RPOM21

    Simple answer - the L71 engine was only available with the M21 close-ratio 4-speed transmission. The M20 wide-ratio transmission was available with the 390hp L36 and the 400hp L68, but not with the L71. :thumb
  6. J

    Having trouble with silicone brake fluid leaks

    Do you have any idea how old the rubber parts were (how long they had been "on the shelf")? Unless they were over 30 years old, they should have been compatible with DOT5 fluid. :thumb
  7. J

    Front Suspension Upgrade

    Chances are your best bet to accomplish what you're after is standard production (or Monroe/Gabriel/Delco equivalent replacement) shocks, springs, and OEM rubber bushings. All the aftermarket stuff produces suspension/handling harshness. :thumb
  8. J

    What years are these cars ?

    From left: Pennant Blue = '54 or '55 Yellow = '54 or '55 Arctic Blue = '56 or '57 Cascade Green = '56 or '57 Note: Front fender moldings aren't visible on the blue and yellow car, which would determine their model year. Blue and Green cars are too far away to see the inside rear view...
  9. J

    Oil question

    With your vintage engine, the Mobil 1 synthetic oil does nothing for you except increase your oil change costs. What's important for your engine is to ensure an adequate level of ZDDP in the oil to protect the sliding elements in the valvetrain (primarily the lifter faces and cam lobes), as that...
  10. J

    Question: 1962 Build Sheets

    I worked at St. Louis-Corvette in 1967-68, and there was no fire - the records simply weren't kept - GM was in the business of building cars, not storing records. Assembly plants have very little office space - certainly not enough to store months or years of thick paper build records; there was...
  11. J

    Help! 1954 Built Date and Engine Block Dates

    I'll defer to one of the '54 experts when one chimes in, but it's my understanding that ALL '54 Corvette engines were suffixed with "F54YG", AND they were all built at the Flint Motor Plant (thus the "F" in the suffix), NOT at Tonawanda. :beer
  12. J

    Rear leaf spring fanned

    The leaf spring was 2-1/4" wide from '63-'77, and changed to 2-1/2" for '78-'79. The rear cover casting number didn't change - what DID change was the diameter of the four bolts retaining the spring to the cover. To accommodate the wider spring, the 9/16" bolts were changed to 7/16" and the hole...
  13. J

    Ac 44 plug.

    I'd avoid the "S" (extended tip) with your L-79; there have been reports of the tip contacting the pistons on the SHP engines with domed pistons. :beer
  14. J

    Rear jack point

    The strongest (and most stable) floor jacking point is the spring retainer plate on the bottom of the differential. :thumb :beer
  15. J

    Question: 97 C5, cd changer cant be advanced manually by using a button

    You'll probably get a better/faster answer if you post in the C5 Forum - this forum is for C1/C2, decades before CD's were invented. ;)
  16. J

    Fuel pump?

    When I had C1's, I made up a special plug for the male fitting on the pump end of the main fuel line on the frame; it's standard Weatherhead fittings - it's a 3/8" SAE double female flare union with a 3/8" SAE male flare plug in one end, and the open end screws on the male fitting on the end of...
  17. J

    Question: 1963 Corvette Coupe

    "Highly Intolerant" = broken fiberglass = new paint = $$$ :beer
  18. J

    Question: 1963 Corvette Coupe

    No, it's not - the rear underbody and wheelhouses/quarter panels are the same, common to both body styles; there is no difference. Folks forget that the midyear body and chassis were designed in 1960 around 5-1/2" wheels and 6.70-15 tires, and they're highly intolerant of wider wheels/tires...
  19. J

    Question: 1966 Corvette (Early RPOL72 427CU 450HP at 6400RPO)

    I've never seen anything officially published by Chevrolet, but one of the dyno techs at Tonawanda said the L-88's and ZL-1's consistently showed over 500hp, and the guys who designed/developed those engines (Dick Keinath, Denny Davis, Bill Howell, and Gib Hufstader) were at our NCRS "Horsepower...
  20. J

    c2 power brakes/

    Fortunately, 1967 was the ONLY year where the manual and power brake systems both used the SAME master cylinder (casting #5455509, stamped "DC" on the machined pad at the front), so you can use the one you have. The rest is all stock parts, assembled as shown in section J50 in the Assembly...
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