 Pre run engine before installing |
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| bajafreaks |
 Apr 26 2025, 12:35 PM
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#1
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Member  Group: Members Posts: 102 Joined: 7-February 14 From: Gardnerville, Nevada Member No.: 16,969 Region Association: Northern California  |
I'm quite aways from having my engine completed but just wondering if there is any big advantage to pre running it before installing. It will be on carbs.
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Replies(1 - 7)
| technicalninja |
Apr 26 2025, 12:52 PM
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#2
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Advanced Member Group: Members Posts: 2,531 Joined: 31-January 23 From: Granbury Texas Member No.: 27,135 Region Association: Southwest Region 
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Absolutely!
Especially a fresh engine! Bunch easier to re-adjust valves and re-torque head nuts after first full heat cycle if the puppy is out of chassis. Oil leaks are easier to spot/fix. Good/bad memories will be made... |
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| bajafreaks |
Apr 26 2025, 01:41 PM
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#3
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Member Group: Members Posts: 102 Joined: 7-February 14 From: Gardnerville, Nevada Member No.: 16,969 Region Association: Northern California |
QUOTE(technicalninja @ Apr 26 2025, 11:52 AM)  Absolutely! Especially a fresh engine! Bunch easier to re-adjust valves and re-torque head nuts after first full heat cycle if the puppy is out of chassis. Oil leaks are easier to spot/fix. Good/bad memories will be made... Kinda what i was thinking, exactly. I guess it cant be that difficult to hook up a temp fuel pump, battery, etc. The transmission would be attached anyway before installing into the car. Is there anything I'm missing? |
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| mepstein |
Apr 26 2025, 03:07 PM
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#4
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914-6 GT in waiting Group: Members Posts: 19,876 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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We run almost all our engines on a test stand before installing in the car. Easier to spot leaks, noises, etc. you can put a 914 engine and trans on a pallet and run it. AIM a fan at the engine if you run it for more than a minute
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| Jack Standz |
Apr 27 2025, 06:06 AM
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#5
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Member Group: Members Posts: 490 Joined: 15-November 19 From: Happy Place (& surrounding area) Member No.: 23,644 Region Association: None
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Yes, a couple ratchet straps and a pallet works.
You should remove the alternator belt (or hook up a voltage regulator temporarily), as you'll not want to potentially destroy the alternator. |
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| bajafreaks |
Apr 27 2025, 09:01 AM
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#6
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Member Group: Members Posts: 102 Joined: 7-February 14 From: Gardnerville, Nevada Member No.: 16,969 Region Association: Northern California |
QUOTE(mepstein @ Apr 26 2025, 02:07 PM) We run almost all our engines on a test stand before installing in the car. Easier to spot leaks, noises, etc. you can put a 914 engine and trans on a pallet and run it. AIM a fan at the engine if you run it for more than a minute Do you do the cam break in as well ? |
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| NARP74 |
Apr 27 2025, 12:40 PM
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#7
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Senior Member Group: Members Posts: 1,370 Joined: 29-July 20 From: Colorado, USA, Earth Member No.: 24,549 Region Association: Rocky Mountains |
This guy makes some stuff that helps. Maybe if you are only doing one, not worth it...
https://zalexindustries.com/ |
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| 930cabman |
Apr 27 2025, 12:51 PM
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#8
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Advanced Member Group: Members Posts: 4,069 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
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In addition, I prime the oil system by cranking it over to achieve oil pressure before starting a new engine.
keep us posted with your progress |
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