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  1. Bt Doctur

    Mercruiser V8 ,backfire,no power after 2200

    1997 Ser: OK150672 chevy V8,TBI Original report was : coming back from west point topped off tank, soon thereafter developed a backfire and popping above 3200.Normal service included fuel sep. filter,cap,rotor, plugs,set base timing.Still have a popping above 2600. 30Gal of 93 octane added...
  2. Bt Doctur

    head gaskets

    For informational purposes Yes, I did the impossable.it is possable to install a head gasket wrong(front -to -back) on the iron duke motor and have all the bolts and pushrods fit and run the motor.worked nice untill the water was added and it came out from the rear of the head area.
  3. Bt Doctur

    can`t remove Alpha drive

    Tried the usual "rock and drop" and it didnt budge at all.no repair history from the previous owner.current owner didn`t have a water test or survey. could be jammed in the coupler or gimbal but it didnt move even a 1/16th.destroying the gimbal is not an option yet.going to try some heat on the...
  4. Bt Doctur

    Don S ,A boat owners salvation

    For what this man does I think we should all give him a round of applause.Service bulletins, reference pictures,GREAT ADVICE,and above all HONEST ANSWERS.We all try to give correct answers and all we ask if that you supply the correct information so we can solve the problem.
  5. Bt Doctur

    GM BB Fuel injected ?????

    Stbd motor is fine, Port motor with key "on" no fuel pump noise prior to "start" ,motor will crank over,has spark, will not fire.When the "battery parallel" is operated the fuel pump does make noise to pressureize and shuts down.Motor still willl not start.fuel line selectors are on stbd fuel...
  6. Bt Doctur

    Velvet Drive 71/72 V drive tech ?

    Been asked to help with one, can the trans be removed from the V section while in the boat.Trans is now jammed in fwd gear.
  7. Bt Doctur

    Mercruiser 120 hp wont go into reverse

    how old is the shift cable?5yrs or better, replace it.may be corrosion buildup in the slider preventing full travel.Given the age of the unit, could be the shift spool wearing out in the lower unit
  8. Bt Doctur

    SS props vs. Alum

    http://i57.photobucket.com/albums/g219/BtDoctur/propshaft.jpg <br />The answer is totally wasted 200 Merc O/B down to tearing the crankshaft end off the crankshaft.
  9. Bt Doctur

    Thunderbolt Ign

    Friend is in need of a complete system for a 5.7 GM, .anyone have a spare unit they would like to get rid of.<br />dist, coil, module.<br />EJDSR251@aol.com
  10. Bt Doctur

    Need I.D . on volvo upper housing

    Ser# 2832025c. gear ratio 1-1.Think its from an inline Vovlo 6.What else will it fit.
  11. Bt Doctur

    hinge pins MC , bondo, rodbolt

    the official tool slips, std. allen wrench slips.is there an "easy out" available and where?<br />mail drop EJDSR251@aol.com
  12. Bt Doctur

    For Don,Rodbolt,or Bondo

    drop me an email. ? on omc stringer site<br />EJDSR251@aol.com
  13. Bt Doctur

    jb,mods 1-5

    How about a something similiar to "Read this first" on having the readers post the results of the suggestions supplied.We try to supply the correct answers but would like to know were on the right track with our responses.
  14. Bt Doctur

    GM 305-350 V-8s Repair Tip

    Just completed this repair. water leak between manifold and block. the pipe plug in the head (between cyl. 6 and 8 rt side or cyl. 1 and 3 left side)corroded away at the bottom of the plug.there was enough room to drill and retap a 1/4 in plug within the existing plug because the existing plug...
  15. Bt Doctur

    Alignment tool

    For what its worth on M/C or Cobras, I use a input shaft with the yoke machined off and the shaft undercut where the 2 o rings would go 1/8 th inch undersize.This helps you to see the actual direction on how the motor has to be moved and how far to obtain alignment. using a drill bit or...
  16. Bt Doctur

    Volvo carbs

    Have a manifold and carb setup from an in-line 6 cyl. volvo.<br />Interested? email to EJDSR251@aol.com
  17. Bt Doctur

    GM inline 6 Dist.

    Need one for a customer. Standard points and cond.
  18. Bt Doctur

    need expert help

    After a lot of years working on these boats i finally got one that was run thru sand for about a 1/2 hr.Stbd. manifold and riser plugged solid. not one drop of water passes thru.approx. 8 oz of sand recovered from the hoses.(1/2 of a 12oz coffee cup)My dilemma is whether or not enough sand can...
  19. Bt Doctur

    Old M/C outdrive

    trying to determine the last year for an early drive.vertical shaft bearing in upper unit held in place with a nut. extremely large driveshaft splines.<br />Ed
  20. Bt Doctur

    misc. Yam 200hp parts

    Make an Offer -carb 6 pack,reed body, flywheel, starter,lower engine pan cover, PTT assembly,center section,exaust tube<br />EJDSR251@aol.com
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