82' engine rebuild

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surfingfreeman
Posts: 388
Joined: Sat Jan 16, 2010 10:34 pm
Your car is a: 1982 2000 FI
Location: Burlingame, California

82' engine rebuild

Post by surfingfreeman »

Ok took the big dive and dropped the car off at my mechanics to begin a complete engine rebuild which will include the following:
R&R ENGINE
STEAM CLEAN ENGINE COMPARTMENT
DISASSEMBLE ENGINE
STEAM CLEAN BLOCK AND HEAD
BORE CYLINDERS, HONE, DECK, HOT TANK, MAGNAFLUX
REBUILD BLOCK, RODS, MAIN BEARINGS, HAVE CRANK GROUND/POLISHED REPLACE OIL GALLEY PLUGS
DYNAMIC BALANCE W/JASON MILLERS 10lb FLYWHEEL, NEW CLUTCH, JASON'S FRONT PULLEYS
HOT TANK HEAD, PORT, POLISH SMOOTH COMBUSTION CHAMBERS, MATCH PORTS TO INTAKE/EXHAUST CHAMBERS
MARK ALLISON'S SNAKE HEADER
BIG VALVES, ISK SPRINGS, 3-ANGLE CUT VALVE SEATS, BRONZE VALVE GUIDES
MARK ALLISON'S 274FI INTAKE AND EXHAUST CAMS, MILLERS ADJUSTABLE CAM PULLEYS
MODIFY AUX. CAM FOR #2 CON ROD
REPLACE FRONT T/B F/CRANK GEAR HOSES ETC. ETC.
CSABA'S 84.6MM 9.8 to 1 PISTONS
BOIL PRESSURE TEST ORIGINAL RADIATOR
IF ANY MONEY LEFT GET WILWOOD BRAKE KIT AND MARKS ALUMINUM RADIATOR
ALREADY SOME INTERESTING FINDING AFTER ENGINE TEAR-DOWN
WILL POST PROGRESS PICTURES
CHEERS,
MIKE
GeorgeT
Posts: 379
Joined: Thu Feb 16, 2012 12:41 pm
Your car is a: 1982 Fiat 124 Spider

Re: 82' engine rebuild

Post by GeorgeT »

While it's out you should consider replacing the following as preventive maintenance:
Water Pump
Oil Pump
Guibo (Rubber Donut)
U-Joints
Center Bearing
narfire
Posts: 3959
Joined: Sat Dec 27, 2008 2:14 am
Your car is a: 1980 124 spider
Location: Naramata B.C.

Re: 82' engine rebuild

Post by narfire »

Mike, when that engine is all degreed in and back in the car... You'll have some tired smile muscles.. It will have that extra zip you wanted and still be quite drivable if stuck in traffic. The car will get you up to the Kispiox in no time :)
What kind of time line?
Chris
80 FI spider
72 work in progress
2017 Golf R ( APR Stg. 1)
2018 F350 crew long box
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FiatMac
Posts: 290
Joined: Sat Aug 01, 2009 1:14 pm
Your car is a: 1982 2000 Spider
Location: Salisbury, North Carolina

Re: 82' engine rebuild

Post by FiatMac »

surfingfreeman wrote: REBUILD BLOCK, RODS, MAIN BEARINGS, HAVE CRANK GROUND/POLISHED
Mike,
Per Guy Croft, the 2 liter crank cannot be ground undersize without destroying the hard surfacing. Can only be polished. If it is out of specification due to wear you will have to source a new one or a used one that is in specification.
Stan McConnell
Retired Mechanical Engineer
Salisbury, North Carolina
82 2000 Spider (driving)
78 124 Spider on the rotisserie
76 124 Spider parts car or possible Lemons racer
83 parts car
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manoa matt
Posts: 3442
Joined: Thu Oct 26, 2006 4:28 pm
Your car is a: 1978 Fiat 124 Spider 1800
Location: Honolulu, Hawaii

Re: 82' engine rebuild

Post by manoa matt »

Do not have the block hot tanked. The auxillary shaft bearings are pressed in then honed to size. The correct bearings have been unavailable for some time, but I think a few vendors now carry them. If you hot tank the block the aux bearings will be ruined. There is little load on the aux shaft and the bearings are usually good so replacement or disturbing them is not recommended.
surfingfreeman
Posts: 388
Joined: Sat Jan 16, 2010 10:34 pm
Your car is a: 1982 2000 FI
Location: Burlingame, California

Re: 82' engine rebuild

Post by surfingfreeman »

Thanks for the pointers guys, i forgot to mention that Water Pump is being replaced, he tested the oil pump and thoroughly cleaned, the Guibo (Rubber Donut) is being replaced, as are the engine mounts. Matt i have sent him an email about your comment and i thought it depended on the detergent you use in the process???????? Regarding the crank it was going to be drilling rather than grinding and i think they do some heat treatment so that the nitrided metal integrity is not compromised but i will double check that as well. Its suppossed to be done by the end of next week. Have a good weekend and thanks for the advise. Joe my mechanic, has been working on only fiats for the past 40 years so i think he is pretty versed in all the proper methodoligies and techniques, but hey we all can learn from others with more know how and experience. I will put a bunch of pics up this weekend or next week.
Mike
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FiatMac
Posts: 290
Joined: Sat Aug 01, 2009 1:14 pm
Your car is a: 1982 2000 Spider
Location: Salisbury, North Carolina

Re: 82' engine rebuild

Post by FiatMac »

Here is a link to a discussion about the issue of regrinding 2 liter crankshafts on Guy Croft's website. He also covers the topic in his latest limited edition Workshop Manual, "Modifying and Tuning Fiat/Lancia Engines". Guy has a tremendous amount of experience modifying Fiat engines for performance. I would not discount his experience on this.
http://www.guy-croft.com/viewtopic.php?f=13&t=2746
Stan McConnell
Retired Mechanical Engineer
Salisbury, North Carolina
82 2000 Spider (driving)
78 124 Spider on the rotisserie
76 124 Spider parts car or possible Lemons racer
83 parts car
surfingfreeman
Posts: 388
Joined: Sat Jan 16, 2010 10:34 pm
Your car is a: 1982 2000 FI
Location: Burlingame, California

Re: 82' engine rebuild

Post by surfingfreeman »

Hi Stan
Thanks for the input, again I'm not talking about a regrind and yes I have read much of guys comments on the subject matter and am not discounting his experience. Thanks for the feedback.
Mike
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FiatMac
Posts: 290
Joined: Sat Aug 01, 2009 1:14 pm
Your car is a: 1982 2000 Spider
Location: Salisbury, North Carolina

Re: 82' engine rebuild

Post by FiatMac »

You're welcome. Just wanted to be sure you had the info. Best of luck with the build!
Stan McConnell
Retired Mechanical Engineer
Salisbury, North Carolina
82 2000 Spider (driving)
78 124 Spider on the rotisserie
76 124 Spider parts car or possible Lemons racer
83 parts car
surfingfreeman
Posts: 388
Joined: Sat Jan 16, 2010 10:34 pm
Your car is a: 1982 2000 FI
Location: Burlingame, California

Re: 82' engine rebuild

Post by surfingfreeman »

Hi Stan
How is your 2L performance build up going is that what has the megasquirt on it, how do you like the megasquirt? I am thinking of buying VAS's wilwood big brake kit, what sold was the ability to use the vented rotors bs. The whoa non-vented, what do you run for brakes?
Mike
surfingfreeman
Posts: 388
Joined: Sat Jan 16, 2010 10:34 pm
Your car is a: 1982 2000 FI
Location: Burlingame, California

Re: 82' engine rebuild

Post by surfingfreeman »

Image
short block waiting for head
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84.4mm 4.5mm piston
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cylinders bored and honed
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top view with goetz gasket but using marks 5-layer
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snake header with snug pipes
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side angle of header
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waiting for jasons cam wheels
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