What causes distributor gear to break?
When the gears do not properly mesh, there is heavy load on a small contact point, which may cause premature gear failure. Clearances which are too tight or too loose, may result in camshaft and distributor gear failures. Distributor shaft end-play should be between .
Why do I need to change the distributor timing?
It’s important that the engine be idling at its warm-idle rpm. It’s likely that our static ignition timing at the crankshaft at idle may not be the desired 10 degrees BTDC. If it must be changed, merely loosen the hold-down nut and adjust the distributor until the initial timing on the crankshaft is at the desired timing figure.
When to set initial timing on Summit HEI distributor?
We prefer to set the initial timing for most engines at 10 degrees Before Top Dead Center (BTDC). With that set, remove the cap from the distributor. We’re using a Summit HEI distributor.
What is the total timing of a Duraspark distributor?
Total timing, theoretically, is then the initial + mechanical. In this case 6 + (15 x 2) = 36 degrees.
How can I tell if my timing chain has slipped?
Listen for any abnormal engine noises, with the engine idling, in the vicinity of the timing chain cover. Chains that have slipped time have slackened and can sometimes rattle during cold start or idle, or produce a swishing or scraping noise.
It’s important that the engine be idling at its warm-idle rpm. It’s likely that our static ignition timing at the crankshaft at idle may not be the desired 10 degrees BTDC. If it must be changed, merely loosen the hold-down nut and adjust the distributor until the initial timing on the crankshaft is at the desired timing figure.
We prefer to set the initial timing for most engines at 10 degrees Before Top Dead Center (BTDC). With that set, remove the cap from the distributor. We’re using a Summit HEI distributor.
Listen for any abnormal engine noises, with the engine idling, in the vicinity of the timing chain cover. Chains that have slipped time have slackened and can sometimes rattle during cold start or idle, or produce a swishing or scraping noise.
What happens when you rotate a Duraspark distributor?
By rotating the housing you in effect move the position of the switch, changing when it triggers a spark. When you rotate the distributor to “adjust the timing” you are moving the switch on the housing side in relation to the trigger on the shaft.