Instructions for use:
1, start the engine until the normal operating temperature
2, all the spark plug to release one or two laps to start the engine to drive the engine (but do not let the engine start) 5-10 seconds, this will disperse the spark plug at the end of the dust around, and will not fall into the cylinder
3, carefully remove all the spark plugs, visual inspection of the spark plug can find many problems, such as: spark plugs have oil that the piston ring is broken or valve duct wear and tear, spark plug that vacuum leakage.
4, completely open the carburetor throttle to see if the results are so.
5, with the starter to drive the engine, the pressure gauge rubber fire cone tightly pressed the spark plug hole
6, with the starter to drive the engine until through the four compression process, in each compression stroke, the measured value of a slight pulse, pay attention to the first stroke and the fourth stroke of the reading. To ensure that the battery has been fully charged, the starter is in good condition and with a normal speed with the engine, with the starter to drive the engine too slow will lead to the wrong results
7, read the measured reading readings, pull down the cone side of the valve to decompression
The engine is in good condition in the following cases
1, the first stroke 50-70 lb / 2 (PSI)
2, the last stroke within the rated technical conditions
3, the difference between the cylinder is less than the customer set the difference
Note: the difference between the cylinder should not exceed 10-15PSI (for Ford, the minimum should be less than the maximum value of 3/4 (70%)
The engine is problematic in the following cases:
1, the first stroke of the low pressure and stroke pressure accumulated only 10-20PSI, indicating the valve card or valve seat burned
2, a cylinder or all the cylinder pressure is low, a small amount of oil into the cylinder, check the piston ring or cylinder wall is damaged, or oil blocked the piston ring around the small cracks, if the result is still low, then the problem out of the valve Or cylinder head gasket, if only a slight increase, then the piston ring, valve or cylinder head washer broken, it may be three are bad
3, higher than the normal pressure is due to the accumulation of carbon in the cylinder
4, the cylinder by the repair, installed a new piston ring engine, if the reading is low, it may be due to the installation of the piston ring problems
We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.
Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.
Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.
We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.
|Location||*Estimated Shipping Time|
|United States||10-30 Business days|
|Canada, Europe||10-30 Business days|
|Australia, New Zealand||10-30 Business days|
|Central & South America||15-30 Business days|
|Asia||10-20 Business days|
|Africa||15-45 Business days|
Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.
For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.
For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.
If you have any other questions, please contact us and we will do our best to help you out.
All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.
Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:
We do not issue the refund if:
*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page
If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.
If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.
Please do not send your purchase back to us unless we authorise you to do so.
A few reasons why buy from us: