Worked well for my application, with having said that I'm not a daily mechanic either !
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- DAYUAN Cylinder Leak Down Tester Kit, Gasoline Engine leakdown Test Tool Dual Pressure Gauges Leak Detector Set Compression Leakage TesterFREE Shipping by 鶹Get it by Wednesday, Jul 9
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Product Description
Compression Tester Kit
 Cylinder Leak Down Tester |  Engine Compression Tester |  Compression Tester |  Diesel Compression Tester |  Fuel Pressure Gauge |  Compression Tester | |
|---|---|---|---|---|---|---|
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Customer Reviews
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91
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141
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90
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43
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172
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1,199
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Engine Type
| Petrol | Gasoline | Gasoline | Diesel | Petrol | Gasoline |
|
Pressure Range
| 0 –100 psi (0 – 7 Bars) | 0–300 psi (0–20 Bars) | 0–300 psi (0–20 Bars) | 0 –1000 psi (0 – 70 Bars) | 0–140 psi (0–10 Bars) | 0–300 psi (0–20 Bars) |
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Movements
| Double | Double | Double | Double | Double | Single |
|
Gauge Accuracy
| ± 2% | ± 2% | ± 2% | ± 2% | ± 2% | ± 2% |
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Air Release Type
| / | Push Button | Push Button | Push Button | Push Button | Push Button |
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Adapters
| 2 | 4 | 5 | 14 | 15 | 4 |
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Hose Length
| 16.5 in. & 9.3 in. | 16.9 in. | 16.9 in. | 16.3 in. | 15 in. | 16.9 in. |
|
Spark Plug Tester Incl.
| ✔ | ✔ | ✔ | ✘ | ✘ | ✘ |
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Quality kit, seems up to the task for any home mechanic
I am a pretty basic home tinkerer mechanic so the testing procedures and equipment are all new to me. The test kit seems well made, the gauges and regulator block maybe not the best quality i have seen, but for the limited service i would see they seem to perform the function. Given the test is not with absolute values as long as its consistent during each cylinder test its okay. Hoses all are nice and flexible, fittings are brass, quick connectors on the airlines all seem okay, they've added o-rings on all the adaptors and they seem to fit up nice and snug. I am not quite sure about the compression tester statement in the title unless you just infer that no leaks will result in good compression? apologies if i got this wrong. In bench testing it does perform well and seems reasonably accurate in detecting flow coming out of the block. Setting the hold point is easy, simulating a leak condition off the connector end works well and there is a lot of play between a full leak to tiny one that inspires confidence in the range it can detect. I didn't get a chance to play with the spark tester but it looks okay seems well made. From my perspective as a casual home mechanic/ tinkerer, this seems like a great kit and well beyond my needs. I like the testing procedure it really does seem to pull out a number of faults to try chase down
Top reviews from Canada
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- Reviewed in Canada on December 21, 2024
I am a pretty basic home tinkerer mechanic so the testing procedures and equipment are all new to me. The test kit seems well made, the gauges and regulator block maybe not the best quality i have seen, but for the limited service i would see they seem to perform the function. Given the test is not with absolute values as long as its consistent during each cylinder test its okay. Hoses all are nice and flexible, fittings are brass, quick connectors on the airlines all seem okay, they've added o-rings on all the adaptors and they seem to fit up nice and snug. I am not quite sure about the compression tester statement in the title unless you just infer that no leaks will result in good compression? apologies if i got this wrong.
Quality kit, seems up to the task for any home mechanic
Reviewed in Canada on December 21, 2024
In bench testing it does perform well and seems reasonably accurate in detecting flow coming out of the block. Setting the hold point is easy, simulating a leak condition off the connector end works well and there is a lot of play between a full leak to tiny one that inspires confidence in the range it can detect.
I didn't get a chance to play with the spark tester but it looks okay seems well made.
From my perspective as a casual home mechanic/ tinkerer, this seems like a great kit and well beyond my needs. I like the testing procedure it really does seem to pull out a number of faults to try chase down
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- Reviewed in Canada on February 11, 2025Verified Purchase
- Reviewed in Canada on November 19, 2024
Top reviews from other countries
- Cal O.Reviewed in the United States on May 8, 2025
Works well for the price
Verified Purchase - BrianReviewed in the United States on April 30, 2025
Geat
Verified Purchase - annymeshReviewed in the United States on May 26, 2025
Junk
Verified Purchase - Brian MoranReviewed in the United States on May 5, 2025
Works, but is finicky, and may require modification to the tool or your QCs.
Verified Purchase
I ordered this item to check the head & valves on a 97 miata 1.8L. When I received this unit, I noted that the instruction manual text's use of Letters to identify portions of the tool do not actually correspond to the correct parts of the tool. This will confuse someone who is not familiar with the tool.Brian MoranWorks, but is finicky, and may require modification to the tool or your QCs.
Reviewed in the United States on May 5, 2025
The female quick connect on my compressor hose was not initially compatible with the 1/4" male quick connect on the tool. I had on hand another QC female that was compatible. After physical hookup, no air would go into the tool. I noted the 1/4" male quick connect on the tool has a schrader valve inside. This valve was not referenced in the instructions in any way. After removal of the schrader valve, air was able to enter the tool.
The Pressure gauge scale on this tool does not seem to be calibrated in any way, and showed wildly different settings than my compressor's regulator. Also, above about 25 PSI input, the tool's built-in regulator blows off air with a loud noise, making detection of any leaking air in the manifold under test difficult, if not impossible.
After changing out my QC female connector, removing the schrader valve, dialing down my compressor's pressure to 25 PSI to eliminate the air coming out of the tool's regulator, I was able to finally make measurements on my manifold. It was helpful in diagnosing problems with two of the exhaust valves.
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- 鶹 CustomerReviewed in the United States on January 22, 2025
Works great for finding bent valves!
Verified Purchase
I bought this to diagnose a Hyundai with a snapped timing belt to see if it had bent valves. Within a few minutes it confirmed my suspicions and sure enough there were 6 bent valves on the intake side.鶹 CustomerWorks great for finding bent valves!
Reviewed in the United States on January 22, 2025
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