Mark Howe

November 27, 2020

Bent Big end engine bearing bolts


A customer presented a vehicle with an engine Knock, after removing engine and inspecting the bottom end of

the engine it was found that most of the bolts on the big end bearing caps where loose. On further inspection, it was noted that the engine had been dismantled for repair prior and appears the same bolts where used to reassembled the engine to sell the car.

Most manufactures these days will use one use item bolts only. What does this mean, It means that the bolts will stretch when tensioned from new, and once undone, cannot be re used as the bolt has already stretched to the point of no return and will never go back to the correct tension again.

So in this example it looks like this is what has happened, Over time the bolts work loose and eventually cause sever damage.

There is a mathematical formula for working this out. Known as- Torque to yield


November 27, 2020

What is a pre purchase vehicle inspection?

A pre purchase vehicle inspection is a peace of mind check over  a vehicle prior to purchasing, This is not A Road Worthy but simply a check of all the vehicle components and systems to ensure you are not buying a  lemon. Its can also be used as a double back up to a RWC to ensure you are getting a good safe and reliable vehicle. Although you don’t have x-ray vision to look through the engine and systems, we methodically check over a vehicle based on our years of experience to determine the overall condition and reliability of the vehicle at time of inspection for your peace of mind.

When we do our inspections we ask our self one question. Would I buy this vehicle???

We give you our opinion and condition report for your to make your decision. We cant make your decision for you but we certainly can alleviate the guess work to make your decision easier.

SERVICE AND INSPECTION REPORTpressure testing cooling systemPre purchase inspection

February 18, 2020

Here is a repair on a STHIL TS800 Concrete Saw. It has seized from not have the correct mix of two stroke oil. when mixing your two stroke oil make sure you use the correct oil. Most new machinery now will take a full synthetic oil and must be used. Not using the correct specifications will result in what’s happened here.

December 10, 2019

Ever wondered why there are so many oils on the market, well your not alone. In the early 70s and 80s you could virtually choose from 2 or 3 types of oils, now there are so many too choose from which can be frustrating for all. Due to the emission regulations , engine designs, fuel efficiency and performance, engine oil is critical for your car. Some vehicles may experience, Low speed pre-ignition so the oil is important for helping with this, Manufactures have spent lots of money on oils over the years to get the best results for your vehicle.

Engines with Polymer Coated Engine Bearings  best use the correct grade of oil otherwise this could have a detrimental affect on the engine in the long term Diesel engines with Diesel Particulate Filters, must use a low ash content oil to help prevent clogging of the oil galleries. Technical Information

Why 2 stroke oil and  correct mix is important check this out.Correct Mix

Autotech Mechanical Solutions

Who We Are

Welcome to Autotech Mechanical Solutions as a qualified motor Mechanic for the past 35 years Mark would like to offer you the service you deserve. Mark has spent many years in the Automotive Industry, from early model vehicles to the latest vehicle technologies.