Abarth L
New member
- Joined
- Apr 9, 2010
- Messages
- 136
- Points
- 32
Good day to all Fiat enthusiast's
My first post, surprised too see Stilo Abarth not under Abarth section??
Also surprised too see so little information on the Stilo Abarth and Uno Turbo's on an international Forum??
In short:
I am going to rebuild my Stilo Abarth 2.4 Manual engine, one off the valves on piston 2 has burned (no compression from compression test) I will be doing it myself to make sure all quality criteria is met, second hand or reconditioned motors even with warranty will not do.
Model: Stilo Abarth 2.4 Manual
Km's: 258000 (161250 miles)
Clutch & Flywheel replaced: 248000 Km's (lasted since new )
To do List: (Any comments/ suggestions welcome!!!)
Modifications to be done:
My first post, surprised too see Stilo Abarth not under Abarth section??
Also surprised too see so little information on the Stilo Abarth and Uno Turbo's on an international Forum??
In short:
I am going to rebuild my Stilo Abarth 2.4 Manual engine, one off the valves on piston 2 has burned (no compression from compression test) I will be doing it myself to make sure all quality criteria is met, second hand or reconditioned motors even with warranty will not do.
Model: Stilo Abarth 2.4 Manual
Km's: 258000 (161250 miles)
Clutch & Flywheel replaced: 248000 Km's (lasted since new )
To do List: (Any comments/ suggestions welcome!!!)
- Remove engine or do it while in place? I am opting for not removing the motor.
- Remove RH Front wheel and plastic covers.
- Remove head, with both manifolds on(Outlet split where it go from 5 to 1), manifolds easier to dismantle and replace while on the outside.
- Remove Sump (Problem!! need to remove RH CV from gearbox, so will have to fill up gearbox with oil again) change to service RH CV??)
- Mark Pistons and Con rods and remove
- Lighten Con rods and pistons and must weigh better than factory spec "tolerances", (because factory spec is pathetic, worse than my 1993 Uno Turbo)
- Replace piston rings
- Measure and Hone cylinder sleeves(Clean with air and diesel)( diesel is oily and don't let your parts rust)
- Replace Con rod bearings(lubricate well with oil)
- replace Con rods and pistons(lubricate well with oil)
- Replace main bearings(lubricate well with oil)
- Main seal is a problem on the gearbox, don't think I will be able to do this, but seal on Timing belt end should be possible to change.
- If possible replace whelsch plugs. (don't till today know why it is made from Stainless Steel) (port used for grinding off moulding bumps after manufacturing)
- Replace oil pump
- Replace water pipes
- Head
- Remove valves
- Polish ports, a bit bigger and smoother THAT is ALL
- Skim head by 0.5mm to increase compression. I think 1mm is too much?? Remember I stay 1500m above sea level so effective a 15 kPa drop in atmospheric pressure as compared to sea level, can even run a Turbo on low boost to compensate without changing any thing.
- Replace valve guides
- Clean valves
- Lap valve seats with valves
- Then I read someone is talking about a 3 degree valve seat as the optimum angle for some power gains, is this true? what needs to be done in conjunction with this?
- Replace valves
- New valve stem seals
- Insert new seals
- Replace intake and outlet manifolds
- New head gasket, no lubrication??
- Replace head (Problem!!! need special socket for head bolts??)
- New head bolts Put oil on threat before tightening, or must it be grease??, but not to much it does not compress!!)(Use calibrated torque wrench on all, test calibration easily in bench with weights before any Torque work commence!!!)
- Replace Belts Aircon, Altenator & Timing)
- Set timing
- Replace RH Front wheel and plastic covers.
Modifications to be done:
- De Cat, remove both catalytic converters and but in a mini cat to simulate Cat.
- Lighten Pistons
- Balance Piston's (all 5 must weight the same)
- Lighten Conrods
- Balance Conrods Top and Bottoms (All must weigh the same)
- Polish ports on head
- Skim 0.5mm off head
- Head Gasket
- Exhaust Gasket
- Intake Gasket
- Tappet cover gasket
- 5x Piston ring set
- 10x head bolts
- 20x Valve seals
- Aircon Belt (Problem!! stretch belt, need tool to put on)
- Alternator belt (Problem!! stretch belt, need tool to put on)
- Timing belt
- Tensioner
- Tensioner bearing
- Main Bearings
- Conrod Bearings
- Oil Pump
- Water pump
- Water pipes (To and from radiator)
- Water bottle
- Cam seals
- Crank seal on Timing belt side
- What am I missing?? any suggestions??
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