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| Joined: | 02-14-2006 |
| Location: | Bloomfield/Hebron, Connecticut USA |
| Posts: | 147 |
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With the engine runnng and good oil pressure, an oil leak resulted which forced me to replace the front cover gasket & oil seal. This was the perfect time to replace the timing belt and the tensioner bearings. The belt was tensioned with cylinder #1 at TDC and cam sprocket marks in line at 110 IN and 110 EX, with the rotor arm pointing at the distributor contact for plug #1, which I'm sure is correct for this engine number. I cranked over the engine manualy first to make sure I wasn't going to bend a valve, all was ok. Now she won't run. In fact I have an intermittent spark at #1, then no spark. I checked this with the timing light across each plug lead and the high tension lead, no flashing light! I also checked the voltage across the coil (with a jumper wire ran from earth to the earth terminal on the coil) and there was 8 volts across the coil, which is what I think it should be. I have continuety from the earth lead from the ignitor to earth and all the other electrical conections in the spark/run circuit are good. I also tried a coil from an 74 MGB that I know to be good, this made no difference. I've narrowed it down to 2 things, either the Petronix ignitor is bad (but I don't see how something that works of off magnetic pulses or by producing an EMF can be intermitent) which would just so happened to coincide with changing the timing belt. Or I've selected the incorrect marks on the cam spockets a direct result of changing this belt.
Am I missing something Mark?
http://jhppg.com/gallery/74-Jensen-Healey-15851