Ford Pinto Rebuild, common faults & everything you need to know
Complete guide to Ford's classic rear-wheel-drive inline-four - timing-belt-driven SOHC in cast iron. From head gasket to motorsport builds, with workshop prices.
Note: this is the Pinto (SOHC) engine fitted to many rear-wheel-drive Fords - not the American Ford Pinto car.
Robert has built and rebuilt classic Ford fours for decades. The Pinto engine is one of the most rewarding engines to work on - the cast iron block is robust and takes oversize boring without trouble, and the head is simple and easy to service. With the right craftsmanship a rebuilt Pinto lasts as long as a new one. We handle everything from cylinder head reconditioning to complete engine reconditioning with a 12-month warranty.
The Ford Pinto at a glance
All dimensions and data for the Pinto SOHC series. Torque specs read from the Haynes Ford Sierra factory manual (Ch 2A SOHC).
| Variant | Power | Torque | Compression | Fuel system |
|---|---|---|---|---|
| 1.3 (TL13) | 54-62 hk | 90-98 Nm | 8.0-9.0:1 | Motorcraft 1V/VV carburettor |
| 1.6 (TL16) | 64-89 hk | 111-125 Nm | 8.2-9.2:1 | Motorcraft / Weber carburettor |
| 1.8 (TL18) | 80-90 hk | 140 Nm | 9.2:1 | Pierburg 2E3 carburettor |
| 2.0 carburettor (TL20) | 99-105 hk | 157-160 Nm | 8.2-9.2:1 | Weber 32/36 DGAV carburettor |
| 2.0 EFI (TL20EFI) | 114-115 hk | 160-162 Nm | 9.2:1 | Ford EEC-IV fuel injection |
Torque specs
Verified against the Haynes Ford Sierra factory manual (Rendle & Rogers, 1996), Ch 2A SOHC, page 2A-3, plus Ch 1 service data page 1-2. A single torque table (2A-3) covers all SOHC variants; the 2.0 injection crankshaft pulley has its own exceptions on page 2A-7.
Cylinder head & valvetrain
Engine block & bottom end
Timing belt & timing
Lubrication, spark plugs, other
NOTE - Head bolts: The Pinto came with two different bolt types depending on production year. Early engines (up to mid-1985) have splined bolts with a four-step sequence finishing at 95-115 Nm with no angle. Later engines have Torx bolts: 35-40 Nm, then 70-75 Nm, then a further 90 degrees of angle tightening. Identify the bolt type and use the correct sequence. Meksta always fits new head bolts on disassembly.
Note - Crankshaft pulley bolt (carburettor models): The torque depends on the strength grade stamped on the bolt head. Grade 8.8 is tightened to 55-60 Nm, grade 10.9 to 100-115 Nm. Always check the grade on your specific bolt before tightening.
NOTE - Cambelt: The Pinto is an interference engine. On timing belt failure the pistons can hit open valves. Always replace the timing belt, tensioner and belt guide during a rebuild and keep to the factory interval.
Note - Intake and exhaust manifolds: Factory torque for the manifold mounting bolts could not be established unambiguously from the available manual pages (the sources contradict each other). We do not publish uncertain manifold figures - check against Ford TIS or a Cortina/Capri manual for your specific variant.
The cylinder head in detail
Cylinder head design and common faults. Source: Haynes Ford Sierra Service and Repair Manual, Ch 2A SOHC.
The Pinto has a cast iron crossflow cylinder head (SOHC, 8 valves) with intake and exhaust on opposite sides. The valves are actuated by finger followers pivoting on adjustable ball pins - no hydraulic lifters and no variable valve lift. Early engines suffered cam and follower wear, which Ford later addressed with nitrided cam lobes and followers plus an oil spray bar. During a rebuild we always check the cam and followers for wear.
Common cylinder head faults on the Pinto
- Cam and follower wear - a classic Pinto fault, especially on early engines without an oil spray bar. Symptoms: ticking noise, rough idle, lost power. Fix: replace camshaft and followers, fit a spray bar.
- Head gasket blows - after overheating, most common at the passages between cylinders 2 and 3. Symptoms: white smoke, coolant loss, mayonnaise under the oil cap. Fix: resurfacing and a new gasket.
- Flatness problems - the cast iron head warps under severe overheating. Checked with a straightedge and feeler gauges, fixed by resurfacing.
- Valve guide wear - at high mileage the guides develop oil clearance. Symptoms: blue smoke at cold start, oil consumption. Remedy: replace the guide, new valve reaming.
- Worn valve seats - after long service, above all on the exhaust side. Must be measured and cut during a rebuild.
Common faults on the Ford Pinto
This is what we see most often when a Pinto comes into the workshop. Symptoms, causes and how we fix it.
Cam and follower wear
Common • High- Symptoms
- Ticking or clattering noise from the top, rough idle, lost power in the mid-range, visible wear on the cam lobes and followers.
- Cause
- A classic Pinto problem, especially on early engines without an oil spray bar. Insufficient lubrication of the cam and followers, made worse by long service intervals.
Head gasket blows
Common • High- Symptoms
- White smoke from the exhaust, coolant loss with no visible leak, "mayonnaise" under the oil filler cap, overheating.
- Cause
- Overheating that causes flatness problems in the cast iron head, most common at the passages between cylinders 2 and 3. Made worse by a poor cooling system.
Cylinder wear & ovality
200 000+ km • High- Symptoms
- Rising oil consumption (>0.5 L/1000 km), blue smoke under acceleration, poor compression, an oil film on the spark plugs.
- Cause
- Normal mechanical wear after 200 000+ km. Made worse by short trips and driving with a cold engine.
Crankshaft bearing wear
Uncommon • Critical- Symptoms
- Knocking from the bottom end under load, low oil pressure, metal filings visible at the oil change.
- Cause
- Worn big-end and main bearings, oil pump failure, oil starvation or contaminated oil (coolant ingress).
Timing belt failure (interference engine)
With a neglected belt • Critical- Symptoms
- The engine dies suddenly, will not start, bent valves. At inspection a snapped or jumped timing belt is visible.
- Cause
- Neglected timing belt change. The Pinto is an interference engine - on belt failure the pistons hit open valves. A worn tensioner or belt guide contributes.
Valve guide wear
150 000+ km • Medium- Symptoms
- Blue smoke on start-up (especially in the morning), gradually rising oil consumption.
- Cause
- Natural wear in the valve guides at high mileage. More common on the exhaust side.
Ford Pinto rebuild prices
Prices based on Pinto specifications: 4 cyl, 8 valves, 5 main bearings + 4 rod bearings. All prices exclude VAT and parts.
Cylinder head reconditioning
Bottom end
Full rebuild
Performance
Cylinder machining
| Service | Price |
|---|---|
| Cylinder boring 4 cyl inline block | 3 318 kr |
| Plateau honing 4 cyl | 1 050 kr |
| Stress boring 4 cyl | 4 603 kr |
| Cylinder liner replacement, dry, 4 cyl | 6 216 kr |
| O-ringing block 4 cyl | 2 800 kr |
Crankshaft work
| Service | Price |
|---|---|
| Crankshaft grinding (5 main + 4 big-end) | 3 010 kr |
| Polishing standard | 1 022 kr |
| Cleaning 4-cyl crankshaft | 784 kr |
| Straightening (medium) | 1 190 kr |
| Camshaft journal grinding 5 pcs | 1 540 kr |
| Remove/refit 8 counterweights | 2 044 kr |
Valve reconditioning
| Service | Price |
|---|---|
| Cutting 8 valve seats (standard) | 910 kr |
| Cutting 8 valve seats (large) | 1 386 kr |
| Valve guide replacement 8 pcs | 1 274 kr |
| Manufacturing valve seat rings 8 pcs | 1 540 kr |
| Bronze sleeves fitting 8 pcs | 1 134 kr |
Cylinder head resurfacing
| Service | Price |
|---|---|
| Resurfacing cylinder head 4 cyl (standard) | 1 330 kr |
| Resurfacing cylinder head 4 cyl (large) | 1 596 kr |
| Resurfacing block 4 cyl (standard) | 1 988 kr |
| Resurfacing block 4 cyl (large) | 2 114 kr |
| Resurfacing manifold 4 cyl | 2 842 kr |
| Deck decking block 4 cyl | 1 974 kr |
Con-rod work
| Service | Price |
|---|---|
| Replace con-rod bush 4 pcs | 2 240 kr |
| Manufacture con-rod bush 4 pcs | 2 898 kr |
| Length adjustment con-rod 4 pcs | 2 898 kr |
| Replace press-fit piston 4 pcs | 1 582 kr |
| Piston ring replacement, cleaning 4 pcs | 1 106 kr |
| Resizing big-end housing 4 pcs | 2 352 kr |
| Check / straightening con-rod 4 pcs | 1 414 kr |
| Full reconditioning con-rod 4 pcs | 3 164 kr |
| Steel shot peening con-rods 4 pcs | 2 268 kr |
Pressure testing & balancing
| Service | Price |
|---|---|
| Pressure testing cylinder head 4 cyl (small) | 1 876 kr |
| Pressure testing cylinder head 4 cyl (large) | 2 800 kr |
| Pressure testing cylinder block | 1 400 kr /h |
| Balancing rotating assembly straight 4-cyl | 3 742 kr |
| Weight matching con-rods 4 pcs | 1 316 kr |
| Weight matching pistons 4 pcs | 1 092 kr |
| Flywheel balancing | 2 100 kr |
| Balancing flywheel + clutch | 2 842 kr |
Tuning the Ford Pinto
The Pinto is a classic in tuning and motorsport. The cast iron block is tough and the head responds well to porting, a sharper cam and better intake.
- 1
Intake, exhaust and cam (Stage 1)
A sports camshaft, sharper intake (Weber DCOE or a larger carburettor), a 4-into-1 manifold and adapted ignition.
120-130 hk - 2
Ported cylinder head + twin carbs
Porting of the intake and exhaust ports, larger valves, twin Weber DCOE 40/45 and a race camshaft.
150-170 hk - 3
Internal strengthening
Forged pistons, strengthened con-rods, ARP bolts, balancing and a lightened flywheel for high revs.
180-200 hk - 4
Full race spec
A big-ported head, individual throttle bodies or injection, a race cam and full balancing. Track use.
200+ hk
Ford Pinto Camshaft Profiles
We grind our own camshaft profiles for the Pinto from blanks, on our own cam grinder. Every shaft comes with a complete grinding report. Two ranges: The M series with the original base circle for street cars and folkrace, and The MB series (Race) with a modified base circle for higher power demands.
The difference? The MB series' modified base circle gives more lift at the same duration, but requires uprated valve springs and Race shims. The M series runs with standard components.
The M series Original base circle
| Profile | Stage | Application | Working range | Duration / Lift |
|---|---|---|---|---|
| M1Street | Standard | Daily driving | 700-5 600 v/m | 244° / 9.0 mm |
| M2Street+ | Stage 1 | Sport / cruise | 900-6 000 v/m | 252° / 9.6 mm |
| M3Race | Stage 2 | Road racing | 1 400-6 400 v/m | 260° / 10.2 mm |
| M4Race | Stage 2 | Road racing | 2 000-6 800 v/m | 268° / 10.8 mm |
| M5Race+ | Stage 3 | Sprint / track | 2 800-7 200 v/m | 276° / 11.4 mm |
| M6Drag | Stage 3+ | Track only | 3 500-7 600 v/m | 284° / 12.0 mm |
The MB series Race Modified base circle
| Profile | Stage | Application | Working range | Duration / Lift |
|---|---|---|---|---|
| MB1Street | Standard | Daily driving | 1 200-6 200 v/m | 256° / 9.8 mm |
| MB2Street+ | Stage 1 | Sport / cruise | 1 800-6 600 v/m | 264° / 10.4 mm |
| MB3Street+ | Stage 1 | Sport / cruise | 2 400-7 000 v/m | 272° / 11.0 mm |
| MB4Race | Stage 2 | Road racing | 3 000-7 400 v/m | 280° / 11.6 mm |
| MB5Race | Stage 2 | Road racing | 3 600-7 800 v/m | 288° / 12.2 mm |
| MB6Race+ | Stage 3 | Sprint / track | 4 200-8 200 v/m | 296° / 12.8 mm |
| MB7Race+ | Stage 3 | Sprint / track | 4 600-8 600 v/m | 302° / 13.2 mm |
| MB8Drag | Stage 3+ | Track only | 5 000-9 000 v/m | 308° / 13.6 mm |
| MB9Drag | Stage 3+ | Track only | 5 400-9 400 v/m | 314° / 14.0 mm |
Questions & answers about the Ford Pinto
What we hear most from Pinto owners.
What does it cost to rebuild a Pinto engine?
A cylinder head reconditioning costs roughly SEK 4,000 - 6,000 (labour), a complete engine reconditioning roughly SEK 18,500 - 29,500. On top of that come parts (gasket, bearings, piston rings etc.), typically SEK 5,000 - 15,000 depending on condition.
Is the Pinto really the American Ford Pinto car?
No. Pinto is the name of Ford's SOHC inline-four (also called the EAO), a timing-belt-driven cast iron engine fitted to many rear-wheel-drive Fords in Europe - Cortina, Capri, Granada, Sierra and Transit. The American Ford Pinto car used a different engine (Kent OHV).
Is the Pinto an interference engine?
Yes. On timing belt failure the pistons can hit open valves and bend them. Always replace the timing belt, tensioner and belt guide during a rebuild and keep to the factory interval.
What are the most common faults on the Pinto?
Cam and follower wear (especially early engines without an oil spray bar), a head gasket that blows on overheating, and valve guide wear that gives blue smoke on start-up. See our full list under “Common faults” above.
Can you tune a Pinto?
Absolutely. The Pinto is a classic in tuning and motorsport. With a ported head and twin Weber DCOE a 2.0 goes from around 99 hp to 150-170 hp, and with forged internals and full race spec over 200 hp - all naturally aspirated.
Should you rebuild or replace the engine?
For the Pinto: rebuild. A used engine has unknown history and may have the same wear. A rebuilt engine is effectively new - with known tolerances, new wear parts and a 12-month warranty.
How long does a Pinto rebuild take?
Cylinder head reconditioning: roughly 3-5 working days. Complete engine reconditioning: roughly 2-4 weeks depending on scope and parts availability. We ship worldwide.
Got a Ford Pinto that needs looking at?
Call us directly or send in a quote request. We reply within 24 hours.