Motor wont start properly

steckino · Post by **steckino** » November 26th, 2007, 10:27 pm

Alright this is my friends car.
95 Mazda MX3, has a 1.6 Dohc in it B6D.

It seems to be having issues of starting, as he says it seems as of though the starter will not make the flywheel move.

his words.

CRZYassPYRO: well I have a custom ignition, put key in, flip toggle switch, push ignition button, starter turns but doesn't engage the flywheel...
CRZYassPYRO: when I was driving home from auburn, the car just shut off like I turned my key off, when I tried jumping it (clutch) it wouldn't start
CRZYassPYRO: not clicking... the starter spins freely like the gear isn't getting thrown out to engage the flywheel

Well basically I would like some suggestions as to what that could be, or if anyone else has had the same issue.

Elric_207 · Post by **Elric_207** » November 28th, 2007, 12:51 pm

Turns out my timing belt went on me...

The B6D being an interference engine, I'm probably looking at a few bent valves and push rods as well...

At 175,000 miles I'm sad to say it but I think it's time to put the mazda out of commission.

shameem · Post by **shameem** » November 28th, 2007, 1:21 pm

Elric_207 wrote: The B6D being an interference engine, I'm probably looking at a few bent valves and push rods as well...

As far as i know B6D is a NON interference engine.....

Elric_207 · Post by **Elric_207** » November 28th, 2007, 1:28 pm

Really? I'll have to take a look for myself. I had someone take a look at it for me and they said that when they looked up the timing belt it was labeled "Interference." But hopefully you're right and they were mistaken when they were looking up part numbers.

Tunes67 · Post by **Tunes67** » November 28th, 2007, 1:31 pm

Shameem is correct. All B series mazda engines (and K series for that matter) are NON interference engines unless modified significantly. But all stock, there is no way valves & pistons will meet without additional valve train failure. A broken valve retainer or valve spring might let a valve fall down far enough to hit the piston top. But a timing belt snapping wont result in damage to the engine. One of the reasons I consider Mazda's to be superior to Hondas.

Tunes67

Elric_207 · Post by **Elric_207** » November 28th, 2007, 1:32 pm

shameem wrote:
As far as i know B6D is a NON interference engine.....

You're right, I did some research on Wiki and this is what I found:

"Unusually for a (relatively) modern engine, the B-series is "non-interference", meaning that breakage of its timing belt does not result in damage to valves or pistons"