The 3000 Forum

Hello, soon I will be starting a alternator conversion, oil spin on conversion and high torque starter install.

I was wondering if someone can provide the torque specs for these parts and if it would be different since it's aftermarket parts and hardware?

Also is there a PDF shop manual or reference material I can obtain online or purchase?

Thanks!

1967 Austin Healey 3000 BJ8

Still trying to figure out how to add my vehicle to the signature...

You'll need a manual for any torque specs needed. Available new or used on amazon or eBay.

If there's no torque spec listed for an item, say, the starter motor mounting bolts, don't worry about it, just tighten them up.

Edit: unlike the TR6, never seen a pdf manual available online. There's also a Haynes 100-6/3000 manual one can find used.



Edited 1 time(s). Last edit at 2024-02-25 07:47 AM by steveg2.

Andrew, here is a photo from the 100/6 and 3000 manual. As you can see there are no torque values for those components you mention apart from the bell housing bolts-2 of those will be holding the starter motor to the back plate/bell housing.

Andrew
The starter and spin on oil filter are very worth while changes to the Healey but I myself don’t see the need to convert to an alternator as the full load on the electrical system isn’t that large. Word of caution while putting the spin on adapter on, you can put it on upside down resulting in 0 oil pressure. Just pay attention.

John

Thank you.
I will monitor oil pressure guage.

Hi Andrew,
Are you familiar with the "Three Finger Method" for tightening nuts and bolts ?
This was explained to me once by a successful drag racer and I've been using it ever since 1972.

If you're not sure how snug a bolt or nut should be
hold your ratchet or wrench with the tips of your thumb, index finger and middle finger.

This will get you very close then snug it up a whisker more with your whole hand.
If you break a bolt by using that method then you're a better man than me.

Use prudence on all bolts especially the smaller size hardware and you'll be okay.

Bouna fortuna,
Peter C.

Another good tip I was told, use the smallest wrench or ratchet you can for each job. There is absolutely no need to use a 1/2” drive on a 5/16 bolt. It also helps if you are a little wiener ass like me and you can’t put to much force on it even if you need to.

John

When I need a torque value that is not listed in the workshop manual, I will refer to this guide.

https://www.mgexp.com/article/mgb/pdf/mgb-torque-settings.pdf

Start with the general for the type of fastener and then adjust if the specific value for a MGA part has the same fastener type.

I just put on a spin-on adapter and filter. Torqued to 14 ft/lbs.

(I would never use this guide for engine intervals)

Tim