1. Home
  2. Classic Cars - UK
  3. Austin Healey Sprite Timing question

Austin Healey Sprite Timing question

I can't find my manual its been so long not been looked at, even someone could have kept it on "loan". It had a light blue cover :)

But what is the timing for about 1964/66 Sprite not sure what motor it has but its not the original and I suspect it maybe a 998cc and not what I thought should have been an 1100cc. The car has the early cap with side entry lead distributor and vernier adjustment. This car has been built from the ground up - just to sell - in other words its far from original but looks tidy. (Like single 1 1/4" carby.)

Its not my car and I have only a short look to determine the engine which the serial numbers do not correspond to what should be in the car or what I'm familiar with. maybe out of a mini.

Looking at Mini and MG manuals they say 5-7-10 degree advanced. Yep I can advance it till it pings. Plus our cheap ULP petrol is 85? octane.

Any suggestions. I don't want to get too involved cause there will be too many problems to solve.

thanks

r
Reply to
Rob.
Loading thread data ...

Same timing as everything else: advanced enough until it just-and-no- more starts pinging with full throttle at 45-ish in top gear.

Ian

Reply to
Ian

Thanks, though I may be doing that, hoped for a set and go.

r
Reply to
Rob.

BTW I have my doubts that the distributor has even been setup correctly or checked for the advance mechanics

r
Reply to
Rob.

Since it appears to be a 'bitsa' engine you'll just have to experiment. Set it initially to between 5-10 degrees advance. That should get it started. With vacuum disconnected retard until the idle slows down. Advance to get best speed then back off a degree or so. Then set on road test.

Reply to
Dave Plowman (News)

A Mini engine won't fit unless modified. The crank is different.

Reply to
Dave Plowman (News)

948 9:1 CR - 4 BTDC static. 1098 8.9:1 5 1275 8.8:1 7
Reply to
Dave Plowman (News)

This car is a bitsa I do realise that the crank won't fit, (or they welded a flange on the back) the block can be used. Just I did not recognise the engine number also these engines came with a pressed tag on the front LHS with the capacity stamped on - its not there or a hole where the attaching rivet goes.

Reply to
Rob.

Yep that confirms the figures. Still don't know the capacity although its not the 1275 which only came out in October 1968 MG Midget, here.

r
Reply to
Rob.

I've got three hubcaps from an early '60s Sprout. Need re-chroming, but they're there...

Reply to
Pete M

Only problem there is they have replaced the wheels with mags, but only

4, it didn't come with a spare even.

thanks

r
Reply to
Rob.

Well yes, but you said it's a re-build. In the UK the 1275 unit is by far the most common one for this as it was used by the thousand in the Marina/Ital.

Reply to
Dave Plowman (News)

OK then next question how do you visually confirm the 1275?

I do know that the 1275 late model motors do not have cam follower covers. That came out in the Morris 1100s.

The early 1275 in the coopers have an extra stud in the head.

And this one is running with a 1 1/4" SU. It seem unlikely that its a

1275 motor.
Reply to
Rob.

What's the prefix of the engine number? Ie 9CG, 10CG, 10CC, etc?

Reply to
Dave Plowman (News)

Won't know till sometime during the week if and when the cars turns up.

r
Reply to
Rob.

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.