could a broken timming belt cause camshaft not to turn and leave a valve open to cause no compression?????????
This is a Volvo penta 4 cylinder.
I think the headgasket went causing the motor to suck in water.
It stalled I did not why it was running normal temp.
I tried to start it cranked slow then locked up a second probably breaking timming belt. Is that why no compression? Broke belt causing cam to not turn leaving a valve open????
2007-01-04 13:09:16 · 11 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
Pull all the sparkplug out and roll the engine over by hand 2 complete revolutions, to see if any water or antifreeze comes out of the spark plug holes. The engine should turn over by hand fairly easy if it stops turning the valves are hitting the pistons stop turning don't force it, your timing belt is broken or the cam shaft is out of time If water or antifreeze comes out of the spark plug holes, you have a bad head gasket or possibly cracked cylinder head or engine block.
2007-01-04 13:37:57 · answer #1 · answered by Denny O 4 · 1⤊ 0⤋
Are people looking at it to determine if it has low compression? You need to have a compression check performed like with a compression Gage. Do it dry or without oil and also do it wet by putting a about 1/2 ounce of oil in each cylinder before cranking engine to get the reading. Compare your results to the maintenance manual. They should be within limits and not vary from each other by more than about 10-15 %. You can also put a vacuum gage on the engine while running. The automotive vacuum gages have all the things that can be wrong printed on the face of the gage. Very easy test to perform and will tell you what if anything is wrong. Also do all maintenance specified in the manual for your car like adjusting valves and so on. As far as it not starting up when hot that could be an electrical problem like the starter going bad.
2016-05-23 04:23:06 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Yes, if the head gasket went, you might of run the engine hot, causing the head to warp, then with that tension on the engine and trying to crank on the second turn causing the belt to break which in fact means that your valves drop unto the pistons and by then are bent. Heads are shot
2007-01-04 13:22:04 · answer #3 · answered by soggybottomboy5005 2 · 0⤊ 1⤋
It sounds like it jumped time when it stalled, then you tried to to start it and it locked up for a short time. Ok, when it jumped time some of the valves were down, by turning the engine over you either bent the valve, broke it, or punched a hole in the piston. In other words, your motors likely trashed.
2007-01-04 13:20:32 · answer #4 · answered by mad_mav70 6 · 0⤊ 1⤋
If it was the timing belt, there would be compression in one of the cylinders. I dont think a hydro-lock would cause the timing belt to break. Its more likely that a connecting rod broke, or the piston pin or something like that.
2007-01-04 13:18:46 · answer #5 · answered by Steve-o 3 · 0⤊ 1⤋
yes it will,i mechanic for a living,,and especially on a Volvo,,but other cars also,,it may have more than one valve open,and it will show no compression,,id say that may be your problem,just hope that this is the only thing wrong with it,,it could be about ruined,,i hope it turns out OK,,good luck hope this help,s.
2007-01-04 13:15:07 · answer #6 · answered by dodge man 7 · 0⤊ 1⤋
yes, a broken timing belt could be the cause of no compression.
2007-01-04 13:19:55 · answer #7 · answered by fordv 2 · 0⤊ 1⤋
if you broke the timing belt you shouldn't try to crank it till its fixed
2007-01-04 13:14:18 · answer #8 · answered by skip75 2 · 0⤊ 1⤋
Yes.
2007-01-04 13:26:30 · answer #9 · answered by Iknowthisone 7 · 0⤊ 1⤋
WELL YES IT CAN BUT FROM WHAT YOU ARE SAYING I HAVE ABOUT 20 OTHER THINGS IT COULD BE TOO.
2007-01-04 13:13:24 · answer #10 · answered by JACK OF TRADES 3 · 0⤊ 1⤋