molch Donating Members 174 Member For: 18y 4m 27d Gender: Male Location: Central Coast Posted 21/05/17 08:40 AM Share Posted 21/05/17 08:40 AM Took my car for a blast this afternoon, did a first, second, third take off and then bam white smoke bellowing out the back of the car. pulled over into a service station and the car stalled while filling the servo with white smoke. checked under the bonnet and oil was over the right and left hand sides of engine accessories. Leaked either from head and or from rocker cover but hard to tell exactly. Took pip cap off and white smoke was coming out of the oil cap. coolant still looks normal bright green and not low. Let evrythigg settle and it turns over but won't start. got it towedhome and did a compression test and got the following results: 1= 100 2= 120 3= 90 4=125 5=90 6=160 Did a wet test on cylinder 1 and it turned up the same compression. so I've pulled the rocker cover off and everything looks ok, engine turns over. Cranked the engine over by hand heaps trying to get the timing marks to line up and haven't been able to yet. so thinking and hoping either head gasket or timing issue but could be something worse like ringlands etc? Is next step to pull the head and take a look at the gasket, valves, pistons and bores? Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 15,993 Member For: 9y 10m 28d Gender: Male Location: South Australia Posted 21/05/17 09:25 AM Share Posted 21/05/17 09:25 AM Firstly, that sucks mate, a bunch of us have been having breakdowns lately. Don't ya have to crank the engine like 47 times or something to get the timing marks to line up? I don't think you've broken a bunch of pistons at once. More likely it's the head gasket and or warped head. Regardless of what it is, you know the head is coming off with those compression numbers. If it won't start you can remove it straight away as it's just as easy to push or tow with the head on or off. 1 Link to comment Share on other sites More sharing options...
molch Donating Members 174 Member For: 18y 4m 27d Gender: Male Location: Central Coast Posted 21/05/17 09:46 AM Author Share Posted 21/05/17 09:46 AM Yeah man sucks bad. I'm really hoping it's the head gasket which is almost a best case scenario, time for stronger head studs and atomic gaskets. Looks like next weekend is pulling the car apart instead of driving it like I was planning :-/ and busses for a few weeks! 1 Link to comment Share on other sites More sharing options...
FiftyOne Bronze Donating Members 1,145 Member For: 11y 5m 26d Gender: Male Posted 21/05/17 09:49 AM Share Posted 21/05/17 09:49 AM (In my defense I'm dealing with several worn and wearing components from a decade old high performance vehicle) Sucks to hear about the breakdown mate. Those compression numbers are a little all over the shop, wondering if (assuming the gasket has gone) that somehow its bent a rod or two? I'm with Puff though, head to come off or at a minimum a borascope to see what you can see in the plug holes Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 15,993 Member For: 9y 10m 28d Gender: Male Location: South Australia Posted 21/05/17 10:13 AM Share Posted 21/05/17 10:13 AM 24 minutes ago, molch said: I'm really hoping it's the head gasket Me too man. You have been giving it a good amount of boost for quite a while and these heads are known to crush and loosen up over time. Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 12y 7m 23d Gender: Male Location: Central Coast Posted 21/05/17 10:18 AM Share Posted 21/05/17 10:18 AM My head bolts failed as well but not in such a catastrophic fashion, was there a death rattle before it went pop? Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 3m 4d Gender: Male Location: Perth Posted 21/05/17 11:08 AM Share Posted 21/05/17 11:08 AM (edited) Overlay the firing order on the compression figures.... 16's too young 35's too old 24's just right Edited 21/05/17 11:10 AM by Ralph Wiggum Link to comment Share on other sites More sharing options...
molch Donating Members 174 Member For: 18y 4m 27d Gender: Male Location: Central Coast Posted 21/05/17 12:08 PM Author Share Posted 21/05/17 12:08 PM 1 hour ago, MattyP said: My head bolts failed as well but not in such a catastrophic fashion, was there a death rattle before it went pop? nah I didnt hear any particular rattle but was screaming its head off (literally) so pretty hard to hear. what symptoms did yours have?? using coolant? what studs are the go without needing to drill anything out. I want to support circa 500 - 550kw @ 22-25psi to allow for future proofing. Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 12y 7m 23d Gender: Male Location: Central Coast Posted 21/05/17 12:31 PM Share Posted 21/05/17 12:31 PM I went with the normal ARP head studs, Mine was using coolant ever slowly but frequently fully drained the overflow within 500kms Link to comment Share on other sites More sharing options...
FiftyOne Bronze Donating Members 1,145 Member For: 11y 5m 26d Gender: Male Posted 21/05/17 02:02 PM Share Posted 21/05/17 02:02 PM 2 hours ago, Ralph Wiggum said: Overlay the firing order on the compression figures.... 16's too young 35's too old 24's just right 1 Link to comment Share on other sites More sharing options...
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