The book says 10 degrees BTDC at idle....we all know that, right?
The car is fitted with a Pertronix electronic ignition set up.
I used a timing light while the engine was hot and idling at around 750-800 RPM. But every time I set it at 10 BTDC, then tightened up the distributor nut and rechecked it, it was at 11 degrees. It and I, did this around 5 times.
Feeling that near enough is good enough, I've decided to leave it set at 11 BTDC, BUT, I'm taking Daisy on a 1650kms trip at Easter where there will be prolonged periods when she will be cruising at 100-110 kph or thereabouts.
Considering that she'll be running on 98 RON Premium unleaded, can anyone see a problem with this?
Cheers,
Rob
Sprint ignition timing
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Jon Tilson
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- Posts: 11179
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- Location: Middlesex
Re: Sprint ignition timing
If it doesnt pink under load say from 1000 rpm in top gear you will be fine.
Best to run it slightly on the rich side...
Jonners
Best to run it slightly on the rich side...
Jonners
Note from Admin: sadly Jon passed away in February 2018 but his humour and wealth of knowledge will be fondly remembered by all. RIP Jonners.
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Sundowner
Re: Sprint ignition timing
Jon,
Thanks.
Those were my thoughts exactly. But being a new chum when it comes to SPRINTS I figured I better ask.
Cheers,
Rob
Thanks.
Those were my thoughts exactly. But being a new chum when it comes to SPRINTS I figured I better ask.
Cheers,
Rob
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Toledo Man
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Re: Sprint ignition timing
Is there any play in the dizzy shaft? If you're running on points you will get timing scatter and the points gap will be all over the place. Even with electronic ignition you might still have a problem if the play in the dizzy shaft is really bad. You might also have a faulty vacuum advance. You've done the right thing setting it to the book figure with 98 RON fuel. Its the closest you can get to 4 star these days and you don't have to worry about valve seat recession on the Sprint because they had hardened exhaust valve seats from day one because of the aluminium alloy head.
Toledo Man
West Yorkshire Area Organiser
Meetings take place on the first Wednesday of the month at 8.00pm at The Railway, 1 Birstall Lane, Drighlington, Bradford, BD11 1JJ
2003 Volvo XC90 D5 SE (PX53 OVZ - The daily driver)
2009 Mercedes-Benz W204 C200 CDI Sport (BJ58 NCV - The 2nd car)
1991 Toyota Celica GT (J481 ONB - a project car)
Former stable of SAY 414M (1974 Toledo), GRH 244D (1966 1300fwd), CDB 324L (1973 1500fwd), GGN 573J (1971 1500fwd), DCP 625S (1977 Dolomite 1300) & LCG 367N (1975 Dolomite Sprint), NYE 751L (1972 Dolomite 1850 auto) plus 5 Acclaims and that's just the Triumphs!
Check my blog at http://triumphtoledo.blogspot.com
My YouTube Channel with a bit of Dolomite content.
"There is only one way to avoid criticsm: Do nothing, say nothing and BE nothing." Aristotle
West Yorkshire Area Organiser
Meetings take place on the first Wednesday of the month at 8.00pm at The Railway, 1 Birstall Lane, Drighlington, Bradford, BD11 1JJ
2003 Volvo XC90 D5 SE (PX53 OVZ - The daily driver)
2009 Mercedes-Benz W204 C200 CDI Sport (BJ58 NCV - The 2nd car)
1991 Toyota Celica GT (J481 ONB - a project car)
Former stable of SAY 414M (1974 Toledo), GRH 244D (1966 1300fwd), CDB 324L (1973 1500fwd), GGN 573J (1971 1500fwd), DCP 625S (1977 Dolomite 1300) & LCG 367N (1975 Dolomite Sprint), NYE 751L (1972 Dolomite 1850 auto) plus 5 Acclaims and that's just the Triumphs!
Check my blog at http://triumphtoledo.blogspot.com
My YouTube Channel with a bit of Dolomite content.
"There is only one way to avoid criticsm: Do nothing, say nothing and BE nothing." Aristotle
-
Sundowner
Re: Sprint ignition timing
My apologies for bring this up again, but....
I just removed the small floating stud and locking nut from the distributor mounting and replaced it with a 7/16 bolt and lock washer. Then I re-timed it, found 10 degrees and easily locked it there.
I find it unusual that the distributor mounting would have a floating stud and locking nut rather than a bolt and lock washer. Is this the norm for these slant 4 engines?
or is this a previous owners mod?
Cheers,
Rob
I just removed the small floating stud and locking nut from the distributor mounting and replaced it with a 7/16 bolt and lock washer. Then I re-timed it, found 10 degrees and easily locked it there.
I find it unusual that the distributor mounting would have a floating stud and locking nut rather than a bolt and lock washer. Is this the norm for these slant 4 engines?
or is this a previous owners mod?Cheers,
Rob
-
Toledo Man
- Guest contributor
- Posts: 7542
- Joined: Tue Oct 03, 2006 5:52 pm
- Location: Halifax, West Yorkshire
- Contact:
Re: Sprint ignition timing
It should have the 7/16" bolt and spring washer. It was probably lost and replaced with whatever was to hand.
Toledo Man
West Yorkshire Area Organiser
Meetings take place on the first Wednesday of the month at 8.00pm at The Railway, 1 Birstall Lane, Drighlington, Bradford, BD11 1JJ
2003 Volvo XC90 D5 SE (PX53 OVZ - The daily driver)
2009 Mercedes-Benz W204 C200 CDI Sport (BJ58 NCV - The 2nd car)
1991 Toyota Celica GT (J481 ONB - a project car)
Former stable of SAY 414M (1974 Toledo), GRH 244D (1966 1300fwd), CDB 324L (1973 1500fwd), GGN 573J (1971 1500fwd), DCP 625S (1977 Dolomite 1300) & LCG 367N (1975 Dolomite Sprint), NYE 751L (1972 Dolomite 1850 auto) plus 5 Acclaims and that's just the Triumphs!
Check my blog at http://triumphtoledo.blogspot.com
My YouTube Channel with a bit of Dolomite content.
"There is only one way to avoid criticsm: Do nothing, say nothing and BE nothing." Aristotle
West Yorkshire Area Organiser
Meetings take place on the first Wednesday of the month at 8.00pm at The Railway, 1 Birstall Lane, Drighlington, Bradford, BD11 1JJ
2003 Volvo XC90 D5 SE (PX53 OVZ - The daily driver)
2009 Mercedes-Benz W204 C200 CDI Sport (BJ58 NCV - The 2nd car)
1991 Toyota Celica GT (J481 ONB - a project car)
Former stable of SAY 414M (1974 Toledo), GRH 244D (1966 1300fwd), CDB 324L (1973 1500fwd), GGN 573J (1971 1500fwd), DCP 625S (1977 Dolomite 1300) & LCG 367N (1975 Dolomite Sprint), NYE 751L (1972 Dolomite 1850 auto) plus 5 Acclaims and that's just the Triumphs!
Check my blog at http://triumphtoledo.blogspot.com
My YouTube Channel with a bit of Dolomite content.
"There is only one way to avoid criticsm: Do nothing, say nothing and BE nothing." Aristotle
-
Sundowner
Re: Sprint ignition timing
That's pretty much what I thought, but being relatively new to Sprints, I didn't know. Now I do.Toledo Man wrote:It should have the 7/16" bolt and spring washer. It was probably lost and replaced with whatever was to hand.
Thanks,
Rob