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Post Info TOPIC: Bad news from the dyno shop


Poncho Master!

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Bad news from the dyno shop


Some good news first:

IT RUNS! No leaks, good oil pressure, compression 180-200 psi in all cylinders ...

... except one, which was zero no  evileye

Lifter was hung up in #2 cylinder, and when you inspected them all (I did not know this, but you can see to the other side through drain holes in the cylinder heads when the valve covers are off) there were several other lifters that were scored bleh

Their engine man's diagnosis = block was probably shot peened which caused top of lifter hole to bend over a bit in places, and the original builder of the short block did not hone or check the lifter bores.

Their engine man's remedy =

1. cannot fix just by pulling the intake manifold, any metal shavings would get into the innards and cause all kinds of grief.

2. need to completely disassemble the motor, inspect lifter bores, hone if possible, might have to put in a bushing, surely will have to replace some lifters

A little more good news: everything else should be OK, even the bearings, but they will inspect all and do what is necessary to fix it.

Some more good news: they will work to get it all done by the end of the year.

So it will cost more than I planned, but at this point, I am "all in" for whatever it takes to get the car on the road.

More to come ...

Dave



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56Pontiac  1956 Pontiac Pathfinder 2dr sedan, 496 - dyno'd 545 hp, stick shift, 4.11 posi - Hot Rod

  1964 Acadian Beaumont SD convert, 283 - factory 195 hp, Powerglide, 3.08 10-bolt - Cruiser

  2012 US-built crew cab truck - Daily Driver and Boat Trailering



Guru

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YEA,  dave you should have just had me bring my 500 Caddy motor down and you would have been on the road in Nov.  I will be back in Jan.  See you on Monday nights at Merchants Crossing????



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1951 Chevy Styleline -- Gasser

1966 Chevy Biscayne -- Sleeper

 



Canadian Poncho Superstar!

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Ugh, sorry about your luck Dave. 



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67' Grande Parisienne. Ex Ottawa USSR Embassy car, 67- 68.
6977017306_dfca361bfc_m.jpg
 


Uber Guru

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That is too bad about the bad news. Good luck with the remedies on that monster motor.



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1957 Pontiac Pathfinder Deluxe sedan restored 261 six

1974 Chevrolet Caprice Estate wagon low milage original 400 V-8



Canadian Poncho Superstar!

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That isn't good to hear Dave, but on the other hand I'm glad you are finding these things out before that baby is all buckled up in your car.

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Jerel


A Poncho Legend!

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Glad your in a good mood            Just remember, in Canada, it would have cost 40% more     biggrinbiggrinbiggrin 



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Canadian Poncho Superstar!

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When I had the 454 for my Parisienne done last year, I thought the assembly charges were a little high.  The builder informed me that once the cam and lifters are in, the engine is turned over to ensure that each of the lifters are going up and down, and turning in their bore.   

That stuff all takes time, but well worth it in the long run.



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70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 



Canadian Poncho Superstar!

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When I saw the thread title I thought it could be you. Too bad. Just think Dave, you will be driving a hot rod in January smilewhile I'm shoveling snow and freezing my nards off.cry



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Prince Edward Islandbug.gif

'64 Parisienne CS "barn find" - last on the road in '86 ... Owner Protection Plan booklet, original paint, original near-mint aqua interior, original aqua GM floor mats, original 283, factory posi, and original rust.

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