Any satisfactory way to find TDC without stripping the engine down

Great video. It looks like the issue is both the pulley and the drive hub, the 4 bolts look rotated round as well as the notches in the wrong place. Scary how badly out they get! I know people like to find tdc by putting a screw driver in the plug holes but I’ve always thought this doesn’t work on a 12a with a ldr rotor and sloping combustion chamber. Also the spark holes are symmetrical up and down on the housing. Doesn’t seem like there’s an easy way to find the timing without pulling the front pulley hub and checking the keywsy is at 9 o clock. And doing that is a risk of Torrington bearings slipping.

Man, I did not know that. Due to some running issues I could never figure out, I definitely have to check mine. Thanks for that valuable info. Just wondering how Mazda factory tuned those engines correctly in the first place? Thanks again.

Great video, thanks.

Variation is crazy!!

Hey Jon! Awesome tool, I’ve read that the E shaft keyway is 90° from TDC, curious if that’s an accurate number to machine marks on a pulley too or if it’s just a “rule of thumb” number, thanks 😎

@jonblanchracing1487

6 ай бұрын

In theory, yes you should be able to use the keyway as a reference for tdc. However, in my experience the keyway isn’t always cut perfectly. This is more common on some aftermarket billet cranks as opposed to the factory Mazda ones

Should we start checking marks on aftermarket trigger wheel also?

where can I order one thanks

Where i can get that tool

Where can i get that TDC tool? How much is it?

where May i purchase this tool Boss ?

@jonblanchracing1487

2 жыл бұрын

I have them in stock Isaiah if you need one 👍🏼

How do you time a distributor

@glenjansen8255

7 ай бұрын

For a RX7