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Roughly 3:1 Compression

PostPosted: July 28th, 2008, 8:59 pm
by Frost
Well Cartz and myself setout on bringing his dads XF 4spd wagon on gas from shep to wodonga (around 200km). Cartz organised a permit etc and his dad got it started and fueled it up, checked water and oil etc.

Day 1. Drove around 100km, I pulled over to have a leak, so did the XF (also to have a leak you will find out later) and the XF stalled. THe battery was rooted and it would turn over, we also tried push starting it = Fail! 2tons of shit is hard to push. So we dumped it where it was to come back tommorow (about 100km from its final desitnation)

Day2. Go to XF, turn key starts first time, let it idle for a bit and what not, start driving, I noticed the temp gauge was quite hot, but I though, dash is prolly rooted (should of thought otherwise) went to the servo to put $50 of petrol in and change battery, toped up the overflow bottle with water just incase it was a little down. So I set off again.

Driving along on petrol this slight rattle devlops under accleration, thinking it was the exshust hitting I thought nothing of it, and I flicked it to gas and it was running fine. Get to the town where its parked now, flick it to petrol as its running like a dog on gas underload, and the rattle gets 10x worse, I thought maybe the exshust has got a leak, but I also notice the tempture gauge having a fit, its jumping all over the shop, get to a round about, change down gears it stalls, im still rolling so drop the clutch and go to pull over cause it starts running again, and it stalled again, so i tried turning it over, and the starter motor sounded like it had a bit less load.

Anyway steam starts comming out of the bonnet, and then you can hear the oil burning, alloy twisting, cast iron making a hellva racket and then it stops. So we deared take the radiator cap off, to be suprised there was no pressure. So we filled it up with water etc and tried turning it over, it sounded like the starter was freespinning, but the belts and fan was moving, some exhust gases comming out of the zorst, so we look around and turn it over again and you could see the zorst gases comming out the side of the block, so we figured, the head is prolly cracked and the "free" spinning is a lack of compression.

We didnt pay anything for this XF and we were gunna just come and paddock bash it with you guys, but I think cartz and I are thinking, get the gas system out, headlights, etc and take it to scrap metal and get some money off the old coon rig.

But we should of filmed it, would of been cool to turn into a backyard version of top gear or something. The XF challenge.

But thats our fun story

Re: Roughly 3:1 Compression

PostPosted: July 30th, 2008, 11:27 am
by CaRtZ
yeah poor old xf..... with someone cranking the car u can stand and watch the ignited mixture come straight out the side of the head on cyl 1,2&3 so it would be lucky to have 3:1. im suspecting that the head is just warped due to heat soak as we couldnt let it idle to cool down as it wouldnt start due to the extreme temperature.

re the exhaust leak frost suspected when he was drivin it is actually the fact the large muffler has killed itself many time and has a gapping hole out the side.

atleast the gas system is still good in it ;)

to get it back to wodonga after it breaking down for the 2nd time we put it on a trailer. to get it on the trailer??? put it in 1st and hold the key on. i was quite impressed by the fact the starter had the strength to power the car up the ramps