Starter is slowly turning over on a rebuilt engine.

Asked by Bregan Jun 01, 2013 at 04:20 PM about the 1977 MG MGB

Question type: Maintenance & Repair

Just rebuilt the engine on a 1977 MGB.  Tried starting the engine and it will slowly turn over.  Checked the battery and it is fully charged.  The ground strap from the engine to the frame has been connected.

1 Answer

9,655

Did you ensure the engine would turn over by hand prior to installation? It is possible that you overtightened the main bearings, which should be set at 70lb.ft. If you are sure that is not the case you could try and remove the spark plugs to see if the starter will crank faster without compression. If it does turn over a bit quicker then it's either a bad battery or a starter motor. Put back the spark plugs and check the voltage on the starter motor to ensure the battery is providing enough power to the starter. Anything under 10 volts means your battery isn't up to the task anymore and needs replacement, it might seem fully charged but may not provide the power it did when it was new.

1 people found this helpful.

Your Answer:

CarGurus Experts

  • #1
    Larry Sturgis
    Reputation
    560
  • #2
    wb6epp
    Reputation
    170
  • #2
    Lars Cats
    Reputation
    170
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.