Hi there
I am new to the board. Had my A14 for about 3 years now and just done a complete overhaul on the motor. It also has a mildly cut cam, Weber 32/36, Balanced crankshaft, lightened flywheel and ported head. If been reading some other posts on running in and just wanted to clear my worries on glazing of the bores. I have done 500km at 3000rpm limit with very light load. After that up to a 1000km I gave it short bursts at full throttle. Will this be OK??
Thanks Pierre
South Africa

What oil did you use to run the engine in?

If the engine is not blowing smoke..or overheating, then I wouldn't be too concerned.

My brother once used Mobil-1 synthetic oil while running in, and then have to have his engine bores re-honed..because the engine never ran in, thanks to the wonders of synthetic oil. His engine wouldn't stop blowing smoke. As Errol discussed in the other thread, it depends on the rebuild tolerances and component materials.

Chris

go to your speed shop and get some running in oil we here in new zealand use this alot when we build our race engines
try not to leave the motor running at idle for to long as this can cause the bores to glaze up good luck

check your PM pirre

I am using a good mineral oil. Castrol GTX2. I am planning on running it with that for another 1000 or so and then use Mobil 1. I have not seen it smoking at all, reckon it will be alright.
cheers

ive never realy run in my engines. i just start them take them for a 5 minute drive under 4thou and then retouque the head etc and then give them death. then change the oil after 1000 k or so. its only the euro motors that need heeps of runing in because theyre made to do 1/4 million miles. My girlfriends father races a mk1 vw golf gti and hes been told his new 1800 motor wont be fully run in for 5-7000km! its ok to give it heeps but it wont reach its full proformance till then. Any way ive never had any problems and i know a few pros who do the same.

ahh good someone does agree with me (from other post where i said similiar)

My old mans a mechanic and he always told me the worst thing you can do to a newly built engine is to run at the same revs and lightly loaded for too long. Alternate your revs and use the gearbox to help seat the rings. I'm with the other guys on the mineral oil too you can't run in an engine with synthetics. We normally fire an engine and run it at fast idle for 1/2 an hour, check for leaks and then take it for a good 3 hr drive on the open road. There is nothing like slipping a full race engine in a Sunny shopping cart and going for a good hoon... And Feral I'm not saying your Sunny is a shopping cart either !!!

i am confused i dont know what i am gunna do with my new engine now everybody has different views

i am confused i dont know what i am gunna do with my new engine now everybody has different views