Starter motors and MYP

AndyP

AndyP

Member
United-Kingdom
The starter on my 1.4 TDI has been a bit lazy for ages, it always starts but the first time, especially when cold sounds like it's not going to make the first turn. When my MYP conversion was done the original starter was kept and it made no difference. Recently it's started doing the squeal thing after starting so it's time to do something about it. I searched eBay for a while to track down a 1.6 Bluemotion, stop/start as I wanted the higher rated part. So when the part turned up being 2nd hand I checked it over to make sure it was in good condition and apart from being a bit grubby it all looked good. It was clearly different as the flange that locates with the gearbox was about 6mm greater in diameter and the pinion wheel was also about 13/14 teeth (I forgot to check), compared with the original which was 10 teeth. The correct flange ensured that it did locate very securely, even though the original starter is held both centrally and securely with the two bolts. The other inconvenience was that the solenoid connector was different, so not wanting to modify the loom end, in case the original had to go back, I had to trim the old plug and then ensure it was located securely with cable ties.

Anyway, it all went back together well and the difference is dramatic, it now spins over really fast and catches immediately. There didn't appear to be anything significant wrong with the old starter, so I assume part of the problem was electrical connection, despite having a secondary earth etc. What I did notice was that the old pinion wasn't engaging that well with the flywheel and it appeared to be damaging the teeth a little, however that starter has done nearly 200K miles and probably 20K miles on the MYP box so that may not be significant.

So the real learning is, if you replace your gearbox with an MYP, use an MYP starter too.
 
Last edited:
AndyP said:
The starter on my 14. TDI has been a bit lazy for ages, it always starts but the first time, especially when cold sounds like it's not going to make the first turn. When my MYP conversion was done the original starter was kept and it made no difference. Recently it's started doing the squeal thing after starting so it's been time to do something about it. I searched eBay for a while to track down a 1.6 Bluemotion, stop/start as I wanted the higher rated part. So when the part turned up being 2nd hand I checked it over to make sure it was in good condition and apart from being a bit grubby it all looked good. It was clearly different as the flange that locates with the gearbox was about 6mm greater in diameter and the pinion wheel was also about 13/14 teeth (I forgot to check), compared with the original which was 10 teeth. The correct flange ensured that it did locate very securely, even though the original starter is held both centrally and securely with the two bolts. The other inconvenience was that the solenoid connector was different, so not wanting to modify the loom end, in case the original had to go back, I had to trim the old plug and then ensure it was located sucurely with cable ties.

Anyway, it all went back together well and the difference is dramatic, it now spins over really fast and catches immediately. There didn't appear to be anything significant wrong with the old starter, so I assume part of the problem was electrical connection, despite having a secondary earth etc. What I did notice was that the old pinion wasn't engaging that well with the flywheel and it appeared to be damaging the teeth a little, however that starter has done nearly 200K miles and probbaly 20K miles on the MYP box so that may not be significant.

So the real learning is, if you replace your gearbox with an MYP, use an MYP starter too.
Click to expand...
Yep. Use the starter from the MYP.
 
Same on the PTW - the stop-start starter off a 1.6tdi fits perfectly and the greater starting potency is very reassuring.
 
AndyP said:
The starter on my 1.4 TDI has been a bit lazy for ages, it always starts but the first time, especially when cold sounds like it's not going to make the first turn. When my MYP conversion was done the original starter was kept and it made no difference. Recently it's started doing the squeal thing after starting so it's time to do something about it. I searched eBay for a while to track down a 1.6 Bluemotion, stop/start as I wanted the higher rated part. So when the part turned up being 2nd hand I checked it over to make sure it was in good condition and apart from being a bit grubby it all looked good. It was clearly different as the flange that locates with the gearbox was about 6mm greater in diameter and the pinion wheel was also about 13/14 teeth (I forgot to check), compared with the original which was 10 teeth. The correct flange ensured that it did locate very securely, even though the original starter is held both centrally and securely with the two bolts. The other inconvenience was that the solenoid connector was different, so not wanting to modify the loom end, in case the original had to go back, I had to trim the old plug and then ensure it was located securely with cable ties.

Anyway, it all went back together well and the difference is dramatic, it now spins over really fast and catches immediately. There didn't appear to be anything significant wrong with the old starter, so I assume part of the problem was electrical connection, despite having a secondary earth etc. What I did notice was that the old pinion wasn't engaging that well with the flywheel and it appeared to be damaging the teeth a little, however that starter has done nearly 200K miles and probably 20K miles on the MYP box so that may not be significant.

So the real learning is, if you replace your gearbox with an MYP, use an MYP starter too.
Click to expand...
Andy, I have the standard AMF starter, carefully aligned, but not centred as the spigot is smaller than the MYP gearbox bore.
Do you have a part number for the 1.6 Bluemotion Starter you fitted?

Sent from my SM-N960F using Tapatalk
 
Jellybean said:
Andy, I have the standard AMF starter, carefully aligned, but not centred as the spigot is smaller than the MYP gearbox bore.
Do you have a part number for the 1.6 Bluemotion Starter you fitted?

Sent from my SM-N960F using Tapatalk
Click to expand...

I think it does get centered pretty accurately just because of the two mounting bolts. However, I failed to find the correct part number even after a long search which is why I ending up buying a part from a private buyer that he assured me came off an MYP Bluemotion gearbox with stop/start. Unfortunately, the label on the one I have was rubbed off - so no luck there either.

There was the correct spec Passat sitting in a mate of mines yard and I was getting close to pulling that off to check for the part number ...

I'm sure someone here will will know what it should be.
 
2014 Audi A1 1.6 Diesel Manual CAYC Starter Motor 02Z911024H

^ this is what I fitted. Not sure if it's the 'uprated' one but still going strong after 17k miles.
 
2017 SEAT ATECA SKODA VW GOLF MK7 1.6 TDI DIESEL STARTER MOTOR 02Z911024L

is what I bought for mine. Works perfectly - beefier than the original A2 starter and fits the stop-start PTW box like a glove.

nb - that is the actual link to mine copied from my Ebay history, which needless to say isn't on Ebay now as it is about 5 yards away on the drive..
. But the part code should be correct at least (it is also the L-suffix code on the sticker actually on the starter motor).
 
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