3.4S (manual) Starter Motor

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Re: 3.4S (manual) Starter Motor

by member » Sat Apr 05, 2025 6:48 pm

yes it's a manual. Thanks for the advice, I will ask if it fits correctly.

Re: 3.4S (manual) Starter Motor

by cass3958 » Sat Apr 05, 2025 5:37 pm

There is a difference in the length of the starter motors of an Auto and Manual as I was sent the wrong one first time around and when I was trying to start the car with the Manual starter motor in the teeth would not engage in the fly wheel teeth. I eventually figured it out after taking the damned thing out three times and measuring it with a set of verniers. I would suggest before you fit it to compare it with the old one and make sure you have the correct one for your gearbox.

Re: 3.4S (manual) Starter Motor

by member » Sat Apr 05, 2025 4:48 pm

thanks for the reply. Yes, I've read the thread (otherwise I would never have been able to remove the old startermotor ;) )
but I was not sure about the starter gear. As the old one comes out a lot longer. But I suppose it is pushed
from the inside. (by the way it took me two days to get the old one out. With coffee breaks offcourse)

Re: 3.4S (manual) Starter Motor

by John Quilter » Sat Apr 05, 2025 4:42 pm

And just for laughs, I checked my very old factory flat rate labor times booklet and the published time is 2.5 hours to remove and replace a starter motor. Three hours on a 4.2 liter E Type.

Re: 3.4S (manual) Starter Motor

by cass3958 » Sat Apr 05, 2025 3:10 pm

Hi Steve we have talked about this in detail on this post. viewtopic.php?p=6880&hilit=Starter+high+torque#p6880
Basically the high torque starter motor is the way to go. I did mine many years a go and have not had a problem with it. A lot lighter then the original and smaller so easier to fit and it spins the engine as if you had forgotten to put the spark plugs back in.

Re: 3.4S (manual) Starter Motor

by member » Sat Apr 05, 2025 1:14 pm

Hello everyone, I need some help. My starter motor failed. I managed to get it out (not easy)
I have a S-type 3.8
The starter motor says Lucas 2552 D M418G. I can see it was used for mk2's.
It looks like this https://www.scparts.co.uk/en/lucas-starter-motor/202521

My question is, can it be replaced without problems by a high torque like this one:
https://www.sngbarratt.com/Nederlands/# ... 567a108572


I'm sorry but it has been a while, and I don't know how to place the pictures anymore.

Thanks for any advice.

Steve

Re: 3.4S (manual) Starter Motor

by John Quilter » Fri May 07, 2021 3:34 pm

Yes, the preengaged type work better in colder weather as they continue to crank the engine until it has enough rotation to continue to run, not just one or two cylinders firing and throwing the pinion out of engagement. Same issue with my Morris Minors and MGTD but there is a work around. Crank the engine for 4 seconds with the ignition switch off then turn on the ignition. Not possible to do with the S Type as the starter is electrically operated not from a manual pull cable.

Re: 3.4S (manual) Starter Motor

by Glyn Ruck » Thu May 06, 2021 11:10 pm

If one looks at the Lucas catalogues over time they can be assembled in different ways from the Parts List. How Jaguar decided what to fit to a specific car is at present a mystery.

They are all iterations of the M45G with different drive ends fitted to them.

By 1968 I'm surprised they were not fitting the pre-engaged type.

Re: 3.4S (manual) Starter Motor

by dsbiggles » Thu May 06, 2021 3:22 pm

I certainly wouldn't want to put anyone off tackling this job, but it is a LOT easier if you have access to a ramp.

It helps (IMHO) if your car still has the band with the bolts - then you only need to worry about undoing the nuts.

If you are fitting a hi-torque starter I would recommend putting the band on the end facing the rear of the car and attach nuts from the front with a long extension - a £20 endoscope is a great help here.

The original motor (on a manual car) is easier to remove from underneath if you take off the oil filter. It can also be removed from above if you follow my tips about the throttle return spring, distributor cap and top radiator hose.

Here's my old motor FWIW. It is an M45G, as per the service manual. I have no idea if this was fitted from new (my car is a 1968). It may be that different motors were used from time to time, depending on stock from Joe Lucas (AKA The Prince of Darkness).
Attachments
20210505_230120.jpg
20210505_230120.jpg (1.41 MiB) Viewed 3828 times

Re: 3.4S (manual) Starter Motor

by Glyn Ruck » Wed May 05, 2021 3:02 am

This is all most confusing. As I say I only have Lucas Jaguar Catalogues from '62 to & including '68. When I look at the Catalogues in detail I think starters can be configured in two ways & engage from both sides of the ring gear dependent on end plate & drive mechanism used/fitted.

My car is fitted as per Lucas catalogue MOD & original. Registered as Dec 65 but 4th car off of SA production line that was supposed to be Jan 66. Never been able to resolve so I call it a '65 ~ others call theirs '66. Same as Orlando's car externally. Starter still fitted when him & his Dad removed engine & transmission. (DG) ~ so I can't see protrusion into bell housing. Also a late '65.

engine removal 3 dec 1983 - 2.jpg
engine removal 3 dec 1983 - 2.jpg (188.46 KiB) Viewed 3852 times

As fiited to my car & Orlando's car.
Lucas Starter mine.JPG
Lucas Starter mine.JPG (90.87 KiB) Viewed 3865 times

1961 Mk2's were fitted with (recon)
Lucas starter motor Mk2 1961.JPG
Lucas starter motor Mk2 1961.JPG (104.8 KiB) Viewed 3865 times

1962 E Type was fitted with this which looks most like John's
E Type 62 starter motor.JPG
E Type 62 starter motor.JPG (34.43 KiB) Viewed 3865 times

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