Guest Posted November 28, 2000 Share Posted November 28, 2000 What is the best way to start a rebuilt engine? Link to comment Share on other sites More sharing options...
Guest Posted November 28, 2000 Share Posted November 28, 2000 assuming there is assembly lube on all the internal surfaces, there is coolant in the system, and all the bolts are tight:<P>1. check engine ground strap.<BR>2. pack oil pump with vaseline<BR>3. fill oil to proper level<BR>4. fill carb bowl with gas (manually, or with pump in fuel line.)<BR>5. use distributor shaft with gear removed to turn oil pump for 60 seconds.<BR>6. install distributor (make sure you are on the right tooth)<BR>7. start (may take some gas pedal pumping)<BR>8. set timing with vacuum advance plugged.<BR>9. run car at ~1000 rpm for 10 minutes.<BR>10. shut off, check for leaks.<BR>11. drive.<BR>12. change oil after 500 miles.<BR>13. drive<BR>14. change oil after 1000 miles<BR>15. drive<BR>16. change oil after 3000 miles<BR>17. repeat 15 and 16 forever<P>if, at any point during this, you see leaks, shut down, tighten bolts, and start from where you left off.<P>allan Link to comment Share on other sites More sharing options...
Guest Posted November 29, 2000 Share Posted November 29, 2000 Allan's advice is great. I'd only add that the 1000 rpm on start-up is especially critical for a new camshaft. If you can do it, I'd stay above 1000 rpm for at least 30 minutes to give the camshaft a chance at a nice long life. Even after this, I'd avoid prolonged slow idles.<P>Also, I'm assuming the cam was coated with a special camshaft assembly lube--not just plain oil. Often this goo comes with the new cam, but if not, GM sells Engine Oil Supplement (EOS) and a special camshaft break-in lube. Either one is great for this purpose.<P>Lastly, keep a fire extinguisher handy!!<P>Greg Cockerill<BR>BCA #36864<BR>1970 Electra Link to comment Share on other sites More sharing options...
Guest Posted November 30, 2000 Share Posted November 30, 2000 great posts, I totaly agree with high rpm cam break in. I think EOS is the BEST cam break in lube made. I also use it in the first two oil changes. JIM Link to comment Share on other sites More sharing options...
Guest Posted November 30, 2000 Share Posted November 30, 2000 I prefer to keep the RPM's in the 2000 range, as your trying to keep the oil splashing on the cam during this crutial 30 min. break in period. I also advise you to keep a simple household fan running on the radiator during this time. Other than helping with the cooling, it helps remove the smoke. lol The fire extinguisher cannot be over stressed, preferably a CO2 type. This type won't put chemicals into your intake should it be required, but any dry powder type is good.<P>------------------<BR>George C. Thomas<BR>70 GS 455 12.teens<BR>86 GN Low 13's/ high 12's Link to comment Share on other sites More sharing options...
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