Hey, guys and gals. Had an accident in my jzz30 1jzgte swapped 84 BMW. Basically, the BMW is complete soarer front cut including ECU and electrics. I hit a possum that ripped off my radiator hose, emptied my car of coolant in seconds and the car came to a complete stop about 10mins later. When i got my car over to the side of the road i tried to start it and it made a clunk and didn't even make a revolution. I opened the bonnet and couldn't touch the motor it was so hot. I opened the oil cap and smoke came out. I guessed it was a dead motor and called the low load truck and dropped the car outside my house I have insurance so i rung them the next day and told them what had happened and they asked for 2 tests to be done. By their mechanic. The first being a radiator/coolant system pressure test. It held 25psi for 30mins. The second test was a compression test. The compressions were an average of 140psi. The mechanic says the car runs relatively smoothly with a miss at idle and has lost power. It was taken for a 20min drive and consumed 2.5litres of water one way. Another 2.5 coming back. He noted that with a new radiator cap you can see air and water being pushed out of the rad overflow line into the overflow bottle. He believes it's a blown head gasket and insurance is liable. TLDR: Accident ripped off rad hose. Car died-overheated, Call insurance, Asked for two tests compression and rad/coolant pressure test: Rad pressure test 25psi stable 30mins Compression results: 1:141 2:144 3:141 4:140 5:140.5 6:151 Car runs for 20mins and consumes 2.5ltrs water per trip. 4 months ago compression was an average of 175 across all cylinders with images. Mechanic thinks it's a blown head-gasket. Has no idea why compression has dropped. Until we pull the head off I really need some advice on where to turn to. If insurance covers a head gasket it will probably only be the headgasket. I can buy another 1jzgte for 3k with compressions 185 across the board I can pick up 1 2jzge with 3kkm on it for 1k and try a 1.5jz but i only have a stock jzz30ecu and its not a common conversion anymore I can get the block done while the head is paid for by the insurance company I can pick a 1jzvvti gte for 2400 Huge post i know thanks for looking.
sounds like your insurance company is trying to mitigate their loss by just putting on a new head gasket. they will not pay out for a brand new engine to be built as that would be classed as betterment (ie better that it was before) the compression is low due to thermal expansion causing things to seize up. best to suggest fitting a good known secondhand engine of similar mileage.
Can they not give you the money for the headgasket and then you can put some of your own in to make it upto 3K and buy a new engine?
