SKU: 44564225825

Diesel Engine Compression Test Kit

Sale price$34.16 Regular price$37.95
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Description

Diesel Engine Compression Test KitDiesel Engine Compression Tester Kit 16 Piece 16 Piece Diesel Engine Compression Testing Kit Used to Identify Worn Valves and Piston Rings Includes Adaptors for Most Diesel Engines Cars, Trucks and Tractors Easy to Read Dial Gives an Accurate Measurement of Individual Cylinder Pressures to a Maximum of 70 Bar FREE DELIVERY UK On this Product Kit Contents: 5 x Glow Plug Adaptor M10 x 1. 0 thread 83 91 102 113 119mm 2 x Glow Plug Adaptor M10 x 1. 25

Diesel Engine Compression Tester Kit - 16 Piece

  • 16-Piece Diesel Engine Compression Testing Kit
  • Used to Identify Worn Valves and Piston Rings
  • Includes Adaptors for Most Diesel Engines - Cars, Trucks and Tractors
  • Easy to Read Dial Gives an Accurate Measurement of Individual Cylinder Pressures to a Maximum of 70 Bar
  • FREE DELIVERY UK - On this Product


Kit Contents:

  • 5 x Glow Plug Adaptor M10 x 1.0 thread 83 / 91 / 102 / 113 / 119mm
  • 2 x Glow Plug Adaptor M10 x 1.25 thread - 64 / 135mm
  • 1 x Glow Plug Adaptor M12 x 1.25 thread - 47mm
  • 1 x Glow Plug Adaptor M22 x 1.5 thread - 118mm
  • 1 x Injector Adaptor M20 x 1.5 thread - 75mm
  • 1 x Injector Adaptor M24 x 2 thread - 63mm
  • 1 x Injector Adaptor M24 x 1.5 thread (88mm)
  • 1 x Injector Adaptor M22 x 1.5 thread (73mm)
  • 1 x Injector Adaptor M20 x 1.5 thread (75mm)
  • 1 x Screw Adaptor (160mm)
  • 1 x Bleed Valve
  •  Dial Gauge
  •  H Fitting




 

 

 

 

 

 

 






ACCURATE MEASUREMENT:

This all-rounder Diesel Engine Compression Test kit covers the vast majority of modern diesel engines fitted to most vehicles.  The 16 piece kit is used to identify worn valves and piston rings.  It includes adaptors for most diesel engines - cars, trucks and tractors, and the easy to read dial gives an accurate measurement of individual cylinder pressures up to a maximum of 70 Bar pressure. 


ENGINE COMPRESSION TESTING:

Engine compression should be checked when an engine is running roughly or is lacking power. Most manufacturers recommend a compression test be performed every time a tune-up is done as part of preventative maintenance.  Consult your vehicle owner's manual for tune-up intervals.


IDENTIFY BAD VALVES/ WORN PISTON RINGS:

By performing a compression test, internal engine malfunctions, such as bad valves, piston rings or excessive carbon buildup, can be detected before they cause irreparable damage.

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What is a Compression Test?

A compression test is a mechanical test carried out to assess the working condition of an engine.  It is one of the most frequently performed tests used to determine engine health.  It is essential that it be performed when the following symptoms present themselves: unexplained loss of power, rough idle, engine miss or a puffing noise in induction or exhaust.  It is also recommended that a test be performed after performing an engine tune up.


Quickly Identify Compression Issues:

The compression pressure values should be measured on all cylinders using the compression gauge.  The results should then be compared against eachother and against the manufacturer's specifications for that engine type.


Accurate Compression Measurement:

This procedure will provide a very accurate indication of current engine condition.  If the recorded cylinder pressure value is lower than the expected value indicated by the manufacturer then pressure is escaping out of the combustion chamber. 

What Causes Low Engine Compression?

WORN PISTON RINGS - A common cause of lost compression is the wearing of piston rings over time.   Wearing of rings can prevent a secure seal forming between the ring and cylinder.  Referred to as "Blow-By" the problem occurs when a fraction of the combusting air-fuel mixture, under high pressure, escapes past the pistons and travels along the cylinder walls to the crank case.  This escaped combustion represents lost power as it should have been pressing down against the piston and generating engine power.  It also causes an issue of oil contamination as the byproducts of combustion are entering the crank case and degenerating the engine oil.

CARBON DEPOSIT FORMATION ON INTAKE VALVES - The accumalation of carbon deposits on the valves or valve seats can negatively impact the ability of the valves to close correctly.  An insufficiently closed valve will lose air as it performs the compression stroke resulting in a sub-optimal compression ratio and a loss of engine power.   A knock on effect of this scenario is called "back firing".  This occurs when the air and fuel mixture bypasses the intake valve during combustion.  Also, note that the exhaust valves must be able to close securely to deliver an effective compression ratio.

TIMING CHAIN OR BELT HAS JUMPED - Valve timing has been disrupted. The chain or belt has become worn and loose and it has jumped over the teeth.

PHYSICAL DAMAGE TO THE ENGINE - This can be caused by a number of issues, for example - broken valves, damaged pistons, etc.

BURNED VALVE - The heat generated by combustion has damaged the face of the valve.

TROUBLE WITH THE VALVE - Often caused by adjustments resulting in insufficient valve clearance which prevents the valve from fully closing as designed.  Can also be caused by damage to valve parts, eg: the valve spring, retainer or seal.

RUPTURED HEAD GASKET - Simple, the head gasket has been ruptured.

VALVED SEAT BURNED - The heat caused during combustion has dmaged the cylinder head seat.

 

We have the best prices online on all diesel compression tester, compression tester diesel, and diesel compression test kits. Shop engine compression test cost UK today!



* images for illustrative purposes only

 

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Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 44564225825

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4.3 ★★★★★
Based on 12 reviews
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Amazon Customer
Chelsea, US
★★★★★ 5
Super cute
Color: Bunny (Mauve), Size: Small
Super cute and fuzzy. Definitely perfect size for a puppy and not too loud. The fur is very soft and the nose is sown on not a hard piece that can be chewed on. Very good quality too.
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Reviewed in the United States on June 3, 2026
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Buyer
Lake Worth, US
★★★★★ 4
Normally amazing
Color: Spiky Ball (Blue, Orange), Size: Medium
We have purchased these slightly spiky dog balls several times for our very strong jaw heavy chewer dogs and they’ve been amazing. They don’t break down they don’t get torn apart the squeakers don’t even pop out of them. So we ordered another package because we’ve lost a few outside to the lawnmower… oops and the package that got delivered today had only one ball that squeaks and the other does not. THIS IS A PROBLEM ! Unfortunately my female dog got to the new squeaking ball first and my male got to the non-squeaking ball and he was NOT happy. Basically once they claim a ball it’s theirs and the other dogs don’t go near the ball they claimed. So he’s following my female around and every time she squeaks the ball and I’m just waiting for him to attempt to take it from her causing damage to her. Normally… These are amazingly fun, tough, durable but also squeaking balls (that’s rare in a tough ball) that my dogs absolutely love. This time just got a bad batch I guess. When they squeak the dogs LOVE them. After several months of play the squeaker might break inside of the ball but the ball never comes apart or gets damaged. And we as the owners love that they don’t break down are not able to be ripped or torn even by our very strong jawed and big jaw muscle dogs. They are also great for in the house play because they’re small enough that they fit completely inside our dog‘s mouth but obviously not small enough to get swallowed so when we throw them in the house for fetch the dogs can jump up and catch them fully in their mouth so they don’t cause any damage to the walls when they hit the walls. They’re not super heavy but they’re incredibly durable. Definitely worth the price especially if you have heavy chewers or big jaw muscle dogs.
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Reviewed in the United States on April 28, 2026
M
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MADDY
Bozeman, US
★★★★★ 5
Best fun indestructible toy
Color: Crinkle Duck (Yellow), Size: Large
Truly indestructible no matter how much our oittie tries. She has owned it for three months works at destroying every day with no success. She carries it everywhere. Best purchase for chewer, more fun than the popular rubber heavy duty toy. Do not hesitate your pup will thank you for this fun distraction.
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Reviewed in the United States on May 30, 2026
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peter contino
Fort Morgan, US
★★★★★ 5
My dog loves this toy!
Color: Bunny (Gray), Size: Large, Color: Bunny (Gray), Size: Large
High quality, big toy, perfect for a medium to large size dog. After a few months of serious chewing I had to buy another one, but well worth the money! Rocky loves it.
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Reviewed in the United States on June 11, 2026
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Denise Boyd
Alexandria, US
★★★★★ 4
Great toy but if your dog is an aggressive chewer, please think twice.
Color: Crinkle Chicken (Brown), Size: Large
I received this on May 23rd and on June 8th, after playing with this thing every day, our recently acquired 36 lb dog finally ripped it open and got out all the plastic and the squeaky part. Lily Belle will miss you, chicken. Lily loooooved this toy! She'd toss it in the air, chew on it, pull it with her teeth etc. but as much as she loved it, we won't replace it. It's just not durable enough for her. If your dog is an aggressive chewer, you might want to try a different toy. I hate that this lasted just a smidge over two weeks because Lily seemed to truly enjoy this toy. RIP, squeaky chicken!
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Reviewed in the United States on June 9, 2026

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