 Timing Question |
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| Petepat |
 Jan 24 2023, 10:44 AM
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#1
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Member  Group: Members Posts: 56 Joined: 1-December 19 From: Florida Member No.: 23,691 Region Association: None  |
So I have the 1.8 L engine which looks like it was injection but now has twin carbs so my understanding is that the timing for a 1.8 is 4.5 BTDC but does that need to change because of the now carburettors? And yes I'm having problems starting!
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| TheCabinetmaker |
Jan 24 2023, 02:22 PM
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#2
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
The carb guys will correct me. But I think it's 27⁰btdc
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| r_towle |
Jan 24 2023, 02:33 PM
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#3
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Custom Member Group: Members Posts: 24,570 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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| ClayPerrine |
Jan 24 2023, 03:20 PM
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#4
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Life's been good to me so far..... Group: Admin Posts: 15,416 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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The timing is different for a 1.8L engine.
It is 7.5 degrees at 900 RPM. Clay |
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| r_towle |
Jan 24 2023, 03:25 PM
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#5
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Custom Member Group: Members Posts: 24,570 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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QUOTE(ClayPerrine @ Jan 24 2023, 04:20 PM)  The timing is different for a 1.8L engine. It is 7.5 degrees at 900 RPM. Clay properly documented in the article posted. It also seems that 25-32 at 3k rpms is across the board....not sure though. the chart goes by distributor number...which I don't know. Rich |
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| Osnabruck914 |
Jan 24 2023, 08:16 PM
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#6
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Member Group: Members Posts: 58 Joined: 19-December 22 From: United States Member No.: 27,038 Region Association: South East States |
F.I. calls for 27 degrees at throttle, which never works for carbs in my experience. You'll be looking for 29-32 degrees. Too low and it will bog out on acceleration and chug-chug in cruise. Too high and you lose torque, run HOT, and your engine will sound like a sewing machine. Also, make sure your not starving for gas with too small main and idle jets. With carbs, go rich and go advanced. With experience you will find the sweet spots.
Osnabruck914 |
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| Petepat |
Jan 25 2023, 04:14 AM
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#7
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Member Group: Members Posts: 56 Joined: 1-December 19 From: Florida Member No.: 23,691 Region Association: None |
Thanks for all the feedback and info guys and as has been said 1.8 L engines are different with only 7.5 degrees BTDC. HOWEVER are all 1.8L engines originally injection and if they were charged to Webbers at a later stage would that change the timing settings?
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| ClayPerrine |
Jan 25 2023, 06:39 AM
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#8
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Life's been good to me so far..... Group: Admin Posts: 15,416 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(Petepat @ Jan 25 2023, 04:14 AM) Thanks for all the feedback and info guys and as has been said 1.8 L engines are different with only 7.5 degrees BTDC. HOWEVER are all 1.8L engines originally injection and if they were charged to Webbers at a later stage would that change the timing settings? The 1.8L engine had carbs on it for Europe. It used the same distributor. And of all the stock distributors, the 1.8L distributor is the one to have for carbs. So set it to the factory settings i.e. 7.5 degrees at 900RPM. |
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| Petepat |
Jan 26 2023, 01:58 PM
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#9
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Member Group: Members Posts: 56 Joined: 1-December 19 From: Florida Member No.: 23,691 Region Association: None |
QUOTE(ClayPerrine @ Jan 25 2023, 07:39 AM) QUOTE(Petepat @ Jan 25 2023, 04:14 AM) Thanks for all the feedback and info guys and as has been said 1.8 L engines are different with only 7.5 degrees BTDC. HOWEVER are all 1.8L engines originally injection and if they were charged to Webbers at a later stage would that change the timing settings? The 1.8L engine had carbs on it for Europe. It used the same distributor. And of all the stock distributors, the 1.8L distributor is the one to have for carbs. So set it to the factory settings i.e. 7.5 degrees at 900RPM. _This 914 was first registered in California before it came to France, so would that had made it an injection? |
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| rhodyguy |
Jan 26 2023, 04:30 PM
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#10
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,070 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
Until you figure out and fix the fuel supply system, you’re spinning your wheels. Figure a cold start is key to on, hear pump whir, 3 full, kinda slow, pumps of the pedal, engage starter, when it starts feather the peddle a bit and it should idle for you. What is your idle RPM when warm? A clean engine bay is more fun to work in.
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| dr914@autoatlanta.com |
Jan 26 2023, 04:36 PM
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#11
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914 Guru Group: Members Posts: 7,822 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
27 degrees btdc at 3500 rpm, you could bump it up to 30 but no more. HOWEVER first check the dwell and set it to 50 or the timing will mean NOTHING
QUOTE(TheCabinetmaker @ Jan 24 2023, 01:22 PM) The carb guys will correct me. But I think it's 27⁰btdc |
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