
Cylinder Head & Engine Block Tools
66021000 - Valve Spring Compressor - OHV Engines
Valve Spring Compressor - OHV Engines For the removal of valves on small / medium OHV engines Cam action provides parallel lift Automatic locking action Supplied with straight adjustable width jawsSpecificationA - Jaw (mm) Min 70mm Max 135mmB - Throat (mm) 150mm
66043000 - Valve Spring Compressor - OHC Engines
Valve Spring Compressor - OHC Engines For OHC petrol & diesel engines Will also fit a wide variety of smaller OHV engines Cam action provides parallel lift Open collet type jaw provides good visibility for difficult access applicationsSpecificationA - Jaw (mm) Min 63mm Max 129mmB - Throat (mm) 158mm
66090200 - Valve Grinding Stick 32mm x 224mm
Wooden handled valve stick for grinding and lapping valvesLarge cup - 32mm diameter - Ideal for HGV, agricultural and industrial plant enginesSingle-Ended 32mm x 224mm
66090300 - Valve Grinding Stick 22mm x 224mm
Wooden handled valve stick for grinding and lapping valvesMedium cup - 22mm diameter - Ideal for cars and light commercial vehiclesSingle-Ended 22mm x 224mm
66090400 - Valve Grinding Stick 19mm x 224mm
Wooden handled valve stick for grinding and lapping valvesSmall cup - 19mm diameter - Ideal for cars, motorcycles and generator enginesSingle-Ended 19mm x 224mm
66090500 - Valve Grinding Stick - 19/22mm x 224mm
Wooden handled valve stick for grinding and lapping valvesSmall / Medium Cup - 19 / 22mm diameterDouble-Ended 19 / 22mm x 224mm
02800000 - Cylinder Honing Set (13-89mm)
Complete honing and deglazing set for 13 - 89mm diameter cylinder bores Flexible drive shaft for use with air or electric drills Supplied with a set of medium grade 220 grit stones Suitable for use on brake and clutch cylinders, small bore engine cylinders, motorcycle engines etc Replacement Stone Sets: 02800100 - Grade: Fine Grit: 40002800200 - Grade: Medium Grit: 220 Note: Each Stone Set consists of 3 x 19mm stones / 3 x 29mm stones / 3 x 50mm stones and 3 x replacement spring clips
02810000 - Cylinder Honing Set (50-180mm)
Large diameter honing and deglazing tool Flexible drive shaft for use with air or electric drills Supplied with a set of medium grade 220 grit stones Suitable for use on large bore engine cylinders from 50 -180mm Replacement Stone Sets: 02810100 - Grade: Fine Grit: 400 02810200 - Grade: Medium Grit: 220 02810300 - Grade: Coarse Grit: 100 Note: Each Stone Set consists of 3 x 100mm stones and 3 x replacement cotter pins
02800100 - Fine Stone Set - for 02800000
Stone set for use with 02800000 - Cylinder Honing Set (13-89mm) Fine Grit: 400 Contents: 3 x 19mm stones 3 x 29mm stones 3 x 50mm stones 9 replacement spring clips
02800200 - Medium Stone Set - for 02800000
Stone set for use with 02800000 - Cylinder Honing Set (13-89mm) Medium Grit: 220 Contents: 3 x 19mm stones 3 x 29mm stones 3 x 50mm stones 9 replacement spring clips
02810100 - Fine Stone Set - for 02810000
Stone set for use with 02810000 - Cylinder Honing Set (50-180mm) Fine Grit: 400 Contents: 3 x 100mm stones 3 x replacement cotter pins Other stones available: 02810200 - Medium Stone Set 02810300 - Coarse Stone Set
02810200 - Medium Stone Set - for 02810000
Stone set for use with 02810000 - Cylinder Honing Set (50-180mm) Medium Grit: 220 Contents: 3 x 100mm stones 3 x replacement cotter pins Other stones available: 02810100 - Fine Stone Set 02810300 - Coarse Stone Set
02810300 - Coarse Stone Set - for 02810000
Stone set for use with 02810000 - Cylinder Honing Set (50-180mm) Coarse Grit: 100 Contents: 3 x 100mm stones 3 x replacement cotter pins Other stones available: 02810100 - Fine Stone Set - for 02810000 02810200 - Medium Stone Set
03950000 - Valve Spring Compressor - Multivalve Engines
Valve Spring Compressor - Multivalve Engines For the removal of valves on multivalve petrol & diesel engines Reinforced frame made from rust-proofed steel Supplied with 25mm & 30mm valve spring adaptors Spare Parts & Optional Adaptors: 03950200 - Multivalve VSC Adaptor: 25mm (OD) 18mm (ID)
03800000 - Valve Spring Compressor - Heavy Duty
The Sykes-Pickavant Heavy Duty Valve Spring Compressor is engineered for efficient removal and installation of valve springs while the cylinder head remains on the engine. Ideal for professional engine rebuilds, tuning, and maintenance, this tool offers a parallel-lift jaw design and fully adjustable legs to accommodate a variety of engine configurations. Features: Suitable for use on a use on a wide range of medium and heavy commercial vehicles, buses, agricultural, marine and industrial plant engines Reinforced frame made from rust-proofed steel Supplied with straight & cranked off-set jaws Adjustable legs for versatile use on a range of cylinder head types Geared hand wheel adjustment Ideal for both bench work and on-vehicle repairs Suitable for use on most OHV and OHC petrol and diesel engines Specifications: Cranked Offset Jaws A - Jaw (mm) Min 75mm Max 165mm B - Throat (mm) 245mm Straight Jaws A - Jaw (mm) Min 95mm Max 186mm B - Throat (mm) 245mm
GO950 - Manual Value Spring Compressor Bench
The two head supports are implemented with non-scratch plastic material and are adjustable from 0 to 30°. There are two handles for locking when the right inclination is set. It is also possible to regulate the horizontal position of the head moving the pins to the opposite holes up and down. There is a long regulation also for the push rod in case of deep valve chambers. The frame can be rotated 30° on both sides. Can also be regulated forward and backwards. In case of valves locked hard into the seat, hit the slide hammer on the top with a plastic mallet. The bench is also provided with a travel limit device that guarantees the same stroke for each valve. When the valve spring is compressed, the operator can block the position using the opposite pin. Consequently you can work on the valves having both hands free. Technical data: Dimensions: 785x500x625 mm Stroke: 265 mm Cylinder head: 750 mm Length: min. 185 mm Inclination angle = 0° - 30° Total weight: 25,5 Kg Application: Cars and commercial vehicles Full range of Govoni available - click to see the Govoni Catalogue 2025 or Govoni Garage Equipment Catalogue 2025
03950400 - Multivalve VSC Adaptor - Restricted Access / BMW
Multivalve Valve Spring Compressor adaptor for use with 03950000 Inside diameter 18mm Outside diameter 30mm Restricted access & BMW
03950200 - Multivalve VSC Adaptor: 25mm (OD) 18mm (ID)
Multivalve Valve Spring Compressor adaptor for use with 03950000 Inside diameter 18mm Outside diamter 25mm
33145000 - XL Combustion Leakage Tester
A combustion leak tester is an essential diagnostic tool for detecting leaks between the combustion chamber and the cooling system - most commonly caused by blown cylinder head gaskets, cracked cylinder heads, or warped engine blocks.By analysing the gases in the cooling system, it identifies the presence of exhaust gases where they shouldn’t be, giving a fast, reliable indication of engine health. Typical uses include: Verifying suspected head gasket failure. Checking for cracks in cylinder heads or engine blocks. Confirming internal coolant leaks before costly repairs. This test can save hours of troubleshooting time, reduce guesswork, and prevent unnecessary part replacement. Key Features of the XL Model Fast & Accurate Diagnosis – Quickly confirms combustion leaks without dismantling the engine. XL Chamber for Improved Testing – Larger test chamber allows for more accurate gas sampling. Quick-Connect Adapter – Compatible with models 33140000 and 331400V2 for easy integration into existing setups. Petrol & Diesel Engine Compatibility – Works effectively across multiple fuel types. Complete Test Kit – Supplied with both standard and sensitive reaction fluids to detect even the smallest leaks. How It Works Fill the tester with reaction fluid (standard or sensitive, depending on the test requirement). Connect to the radiator or expansion tank using the included quick-fit adapter. Run the engine - combustion gases, if present, will pass through the chamber. Watch for a colour change in the reaction fluid, indicating the presence of exhaust gases. Replacement Fluids & Spare Parts 33194200 Reaction Fluid (Standard) – 250 ml bottle 33194400 Reaction Fluid (Sensitive) – 250 ml bottle 331942SP Standard Reaction Fluid – Pack of 6 331944SP Sensitive Reaction Fluid – Pack of 6 These replacement fluids are compatible with multiple SP Combustion Leakage Testers, including this HGV model.
33145500 - Universal Combustion Leakage Tester - HGV
A combustion leak tester is a crucial diagnostic tool for detecting leaks in the sealing between the combustion chamber and the cooling system - most often due to blown cylinder head gaskets, cracked heads, or warped engine blocks. By sampling the gases in the coolant, it quickly and reliably indicates whether exhaust gases are infiltrating where they shouldn't be, instantly helping identify the root of engine issues. Ideal for heavy-duty applications, this tool saves diagnostic time, prevents expensive misdiagnosis, and helps protect against unnecessary disassembly and repair. Key Features of the Universal HGV Model Fast & Reliable Diagnosis – Quickly spots cylinder head gasket and combustion chamber leaks. 25–50 mm Cone – Universal fit across a broad range of HGV (Heavy Goods Vehicle) inlet sizes. Dual Fuel Compatibility – Works seamlessly with both petrol and diesel HGV engines. Complete Testing Kit – Comes with both standard and sensitive reaction fluids for precise leak detection in varied conditions. How It Works Prime the tester with standard or sensitive reaction fluid depending on the degree of sensitivity required. Attach the cone to the radiator or expansion tank opening (25–50 mm). Run the engine to allow any combustion gases to pass into the tester. Monitor the fluid for a visible color change - if it changes, a combustion leak is present. Replacement Fluids & Spare Parts 33194200 Reaction Fluid (Standard) – 250 ml bottle 33194400 Reaction Fluid (Sensitive) – 250 ml bottle 331942SP Standard Reaction Fluid – Pack of 6 331944SP Sensitive Reaction Fluid – Pack of 6 These replacement fluids are compatible with multiple SP Combustion Leakage Testers, including this HGV model.
33195000 - Combustion Leakage Tester
A combustion leak tester is a vital diagnostic tool used to detect breaches between the engine’s combustion chamber and cooling system - typically caused by blown cylinder head gaskets, warped blocks, or cracked cylinder heads. It works by sampling coolant and revealing the presence of exhaust gases via chemical reaction, making it a trusted asset for accurate, rapid engine diagnosis. Ideal for both petrol and diesel vehicles, it helps mechanics save time, avoid unnecessary disassembly, and reduce misdiagnosis. Key Features of the Standard Model Rapid Diagnosis: Quickly identifies combustion gas leaks to pinpoint cylinder head gasket failures. Versatile Connector Compatibility: Features a quick connector compatible with Sykes-Pickavant cap adapters (315, 316, 317 series), enabling flexible fit across multiple vehicles. Dual Fluid Sensitivity: Supplied with both standard and sensitive reaction test fluids allowing for accurate detection under various conditions. Fits Petrol & Diesel Engines: Suitable for testing across a range of vehicle types and fuel systems. Refillable & Reusable: Compatible with separately available replacement fluids in both standard and sensitive formulations How It Works Prepare the tester with either standard or sensitive reaction fluid depending on how much sensitivity is needed. Connect the quick connector to the radiator cap or expansion tank using a compatible adapter. Run the engine to let any combustion gases pass through the tool. Observe the fluid - a visible color change indicates combustion gases have entered the cooling system, confirming a leak. Replacement Fluids & Spare Parts 33194200 Reaction Fluid (Standard) – 250 ml bottle 33194400 Reaction Fluid (Sensitive) – 250 ml bottle 331942SP Standard Reaction Fluid – Pack of 6 331944SP Sensitive Reaction Fluid – Pack of 6 These replacement fluids are compatible with multiple SP Combustion Leakage Testers, including this HGV model.
331942SP - Standard Reaction Fluid 6 Pack
6 Pack250ml replacement bottle of Combustion Reaction Fluid for use with SP Combustion Leakage Testers: 33195000 / 33145500 / 33145000Other Replacement Bottles of Reaction Fluid available: Sensitive - 331944SP - 250ml (Black Cap) 6 PackAlso available singularly as 33194200
331944SP - Sensitive Reaction Fluid 6 Pack
6 Pack250ml replacement bottle of Combustion Reaction Fluid for use with SP Combustion Leakage Testers: 33195000 / 33145500 / 33145000Other Replacement Bottles of Reaction Fluid available: Standard - 331942SP - 250ml (White Cap) 6 PackAlso available singularly as 33194400
33194400 - Reaction Fluid (Sensitive) 250ml
250ml replacement bottle of Combustion Reaction Fluid for use with SP Combustion Leakage Testers: 33195000 / 33145500 / 33145000Other Replacement Bottles of Reaction Fluid available: Standard - 33194200 - 250ml (White Cap)
33194200 - Reaction Fluid (Standard) 250ml
250ml replacement bottle of Combustion Reaction Fluid for use with SP Combustion Leakage Testers: 33195000 / 33145500 / 33145000Other Replacement Bottles of Reaction Fluid available: Sensitive - 33194400 - 250ml (Black Cap)
