240 General: New (to me) 1980 Volvo 244

[Othen]

Originally Posted by Laird Scooby

If memory serves correctly, the Bosch points screw is M4 x 6 and the Lucas 25D screw you linked to is in fact 2BA - although the threads are near identical, they will cause problems in a Bosch dizzy.

That said, some early (think 140 series and older) distributors had oddball screw threads so your best course of action is remove the screw, measure the thread diameter and use a thread pitch gauge to be 100% certain, just in case they somehow used an older screw in your dizzy.

Okay, thank you, but I thought maybe someone would just know the answer.

Perhaps I'll just swap out the points for the electronic type when I come to change them next year after all.

:-)

[Laird Scooby]

Originally Posted by Othen

Okay, thank you, but I thought maybe someone would just know the answer.

Perhaps I'll just swap out the points for the electronic type when I come to change them next year after all.

:-)

It will save you buying a condenser..............

[Othen]

Originally Posted by Laird Scooby

It will save you buying a condenser..............

... and a screw!

[Moomoo]

Originally Posted by Othen

... and a screw!

“ Many a Mickle……….”!

[Bob 1967]

Is there a possibility that when changing the points, a PO mislaid the original screw and fitted something that "fit"?
I would assume (I know!), that Bosch being German would be metric.
But my Volvo has imperial and metric threads, depending on the parts group.

The plate that the points sit on is removable afaik ,with two small screws.
Closer examination upon removal, would possibly reveal if it was cross threaded.

Mine with accuspark fitted..


Rotor arm removed for clarity.

[Bob 1967]

Possibly ....
https://vp-autoparts.com/en/artiklar/screw-49.html

https://parts.volvocarsexeter.com/p/...58/243937.html

In this diagram , the screw for the cap retainer clips , condenser and vacuum are the same as the points retainer....https://vp-autoparts.com/en/artiklar...b21/index.html

[Othen]

Originally Posted by Bob 1967

Is there a possibility that when changing the points, a PO mislaid the original screw and fitted something that "fit"?
I would assume (I know!), that Bosch being German would be metric.
But my Volvo has imperial and metric threads, depending on the parts group.

The plate that the points sit on is removable afaik ,with two small screws.
Closer examination upon removal, would possibly reveal if it was cross threaded.

Mine with accuspark fitted..


Rotor arm removed for clarity.

Thank you Bob.

The screw in question is the slotted head at the top of your photo, the one used to adjust the points gap. I’m pretty sure it is the original and it isn’t cross threaded. The only issue is the slot in its head is a bit worn each way. It would probably be good for two or three more points adjustments.

I’m pretty sure it will be a metric screw, so I’ll have a likely one ready when
I next adjust the points (this time next year), unless I convert it to a solid state solution like yours. I’m vacillating a bit between keeping it original and not having to fiddle around with CB points.

Alan

PS. My typing is a bit shaky; Dan is learning to drive, and taking me to Durham this eve for his university visit tomorrow. Scary, but he has to learn :-)

[Bob 1967]

I changed mine to electronic last year, but I keep a spare set of points and a couple of condensers in the glove box just in case.
The only other thing I had to buy was a ballast resistor, mine wasn't originally fitted with one.

[Othen]

Originally Posted by Othen

PS. My typing is a bit shaky; Dan is learning to drive, and taking me to Durham this eve for his university visit tomorrow. Scary, but he has to learn :-)

… actually Dan drove very well - all the way to Newark before the dual carriageway became a motorway.

[Othen]

Originally Posted by Bob 1967

I changed mine to electronic last year, but I keep a spare set of points and a couple of condensers in the glove box just in case.
The only other thing I had to buy was a ballast resistor, mine wasn't originally fitted with one.

My original intention was to fit solid state points - but the set up is in such good condition it seems a pity to loose the originality. I’ll see how much trouble the CB points turn out to be.

Alan