Can this be used to diagnose an exhaust leak?

While the tool will detect exhaust gases (fluid turns from blue to yellow while squeezing the bulb), it probably wouldn't be able to pinpoint exactly where the leak is coming from. But, it may be useful in ruling out an underhood exhaust leak if you're trying to determine whether or not a particular sound (like ticking) is caused by an exhaust leak or some other mechanical problem.

How do i clean the the tube after use. Does any tester fluid leak into coolent while testing?

You can pop the top cap off and rinse it with water (distilled water if preferred if you have it handy). Tester fluid won't leak down into the coolant as there is a one-way valve in the cone end. Even if test fluid does somehow get into the coolant, there will be no adverse effects.

Can it be use for diesel fuel engine?

Yes, it works on diesel engines. A positive test might show a greenish-yellow color to the fluid rather than the full transition to yellow that you'd see when testing a gasoline engine with a combustion leak.

Does the engine have to be running to work or can we turn the engine over and over to test. will not start, we want to be certain of HG before scrap

I understand your concern. The block Tester detects combustion gases in the coolant system. It will not work if there is no combustion. I would say, if it is igniting the fuel in all cylinders while cranking, but will not remain running it may bleed enough combustion carbons into the coolant system. However, I honestly do not think it will work unless it is running. This block tester is only for head gasket combustion carbon leaks into the coolant system. It is not for head gasket leaks that result in water leaving through the exhaust system. I hope this helps.

Bt 500 Combustion Leak Test Kit

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

المساعدة تتبع الطلب

الحساب عربة التسوق

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

المساعدة تتبع الطلب

الحساب عربة التسوق

E£ 12872

Duties & taxes included

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Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Don’t let hidden leaks slow you down—test fast, fix faster!

BULK FLUID CAPACITY - Generous fluid volume supports multiple tests, perfect for busy workshops or fleet maintenance.
ALL IN ONE READY KIT - Includes everything you need—no additional purchases required to start testing immediately.
INSTANT LEAK DETECTION - Diagnose combustion leaks in seconds with a clear blue-to-yellow fluid color change.
TRUSTED BY PROFESSIONALS - OEM-packaged and highly rated with 4.6 stars from over 3,500 users—join the expert community.
VERSATILE DIAGNOSTIC TOOL - Detects issues from blown head gaskets to cracked blocks and warped sealing surfaces.

The BT-500 Combustion Leak Test Kit is a professional-grade diagnostic tool designed to quickly identify combustion leaks caused by head gasket failures, cracked blocks, or warped surfaces. Featuring a fluid that changes from blue to yellow upon contact with combustion gases, it delivers rapid, reliable results without the need for additional components. Packaged in an OEM white box and trusted by thousands of mechanics, this kit is ideal for both individual use and high-volume workshop environments.

Specifications

ASIN	B06VVBSFTF
Best Sellers Rank	#8,901 in Automotive ( See Top 100 in Automotive ) #78 in Automotive Engine Tools & Equipment
Brand	Block Tester
Customer Reviews	4.6 4.6 out of 5 stars (3,501)
Date First Available	22 September 2017
Item Weight	454 g
Item model number	BT-500
Manufacturer	Block Tester
Manufacturer Part Number	BT-500
Model	BT-512
Product Dimensions	25.4 x 7.62 x 12.7 cm; 453.59 g

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