🔩 Seal it tight, diagnose right—engine care made effortless!
The Engine Air Valve Holder and Cylinder Leakage Testing Assistant Tool is a heavy-duty diagnostic device designed for gasoline engines with M12 or M14 spark plug threads. It pressurizes cylinders up to 1000PSI to hold valves closed, enabling valve seal replacement without dismantling. Its steel braided hose and quick coupler ensure durability and ease of use, while allowing precise detection of air leaks during compression strokes for efficient engine maintenance.
| Material | Brass, Rubber |
| Brand | kweiny |
| Fit Type | Vehicle Specific Fit |
| Vehicle Service Type | Passenger Car, ATV, Truck, Motorbike |
| Item Diameter | 14 Millimeters |
| Number of Pieces | 1 |
| Automotive Fit Type | Vehicle Specific Fit |
| Manufacturer | Xingzhu |
| UPC | 781573032666 |
| OEM Part Number | M12 and M14 |
| Item Weight | 5.5 ounces |
| Item model number | 5824091470 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | XZAMR000 |
M**.
Works!
Used it to swap out the springs in a VW engine. Per the instructions on the box, 30-50 psi working pressure. Set the hose pressure to 30 psi and carefully opened the valve. Worked like a charm! Kept the valve closed while I swapped the springs. Glad I have this tool. Not sure how many times I will be able to use it but I'll post an update if needed.
D**I
Thumbs up
This product works great for allowing air to enter the cylinder to keep your valves from dropping in. Would definitely recommend to anyone else.
A**S
Held the valve open while I mad my repair
Must have if you are fixing broke valve springs
Z**H
Junk!
Junk! Air line on product stated working pressure was 4,500 psi. Well I only put 120psi to it and the line popped!
M**I
Worked for me
This thing worked great. The only thing keeping it from a 5 star product is the fact I had to use an adapter for my particular application. Would've been nice if that was included. Luckily the adapters from a pressure gauge work well. All in all, it did the job.
D**W
Spark Plug Air Compressor Attachment
The media could not be loaded. Pros: Ball Valve (on/off) lever, two size spark plug threads.Cons: Had different male attachment for my air compressor. It would be nice if it wasnt shipped with it on because it is hard unless you have a vice to remove and change it out.Overall: It is useful and I plan on utilizing it to run a small motor from compressed air. Thank you
A**I
Hose cracks before finishing one job
Cheap and bad tool disposable type
D**A
it is not really long so have plenty of hose to reach ur project
The tool worked as advertised . It’s small enough to get into tight spaces was able to hold valve so I could change spring preferred no psi gauge and good value reason for purchase
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