Jump to content

Fuel and gearbox issue


Recommended Posts

Hey so I just recently bought a 82 ke70 and it had this issue where it won’t pickup fuel at about 3/4 of a tank? Any ideas? 
also it doesn’t want to change into third without high revs in second, and really clunks changing between the 2. Is an auto

Link to comment
Share on other sites

Members dont see this ad

Take the sender unit wire off the top of the fuel tank and short it out. If the gauge reads full, the sender unit is faulty.  If the gauge reads half, the wiring or gauge is faulty.

The new sender units on Ebay only go from empty to half when the tank is full, or from half to full so you run out at half. They just don't have enough range.

 

Throw the auto away and fit a K50 or a K40 if you can't get the first. The car will accelerate faster, actually go up hills, & use less fuel.  Buy the whole system, a flywheel, a clutch setup, gearbox and driveshaft, pedals.  Beware that the manual boxes have unique bearings that are no longer available, so once they get noisy or die that cannot be repaired.  Start saving for a 4AGE motor & T50 gearbox if you're going to keep the car!

Gearbox conversion in here-

Throw a picture up!

Link to comment
Share on other sites

Ah- also, see if it changes picking up fuel if parked facing downhill or uphill.  A crappy fuel pump is a possibility if it doesn't actually suck well. You can take the top off the pump and check for dirt under the valves inside.

How's the fuel filter look? 

Link to comment
Share on other sites

The owner before me said they had replaced the pump and filter quite recently. The filter looks clean, it reads the fuel properly.... there’s no way I would’ve chewed through a whole tank in 2 hours??

Okay I will look into a new gearbox. Was thinking of eventually doing a rebuild on the 4k, love the sound of it.

Thankyou for the help. I’m sure I’ll be back when more things arise hahah

(I’ll upload a flick soon)

Link to comment
Share on other sites

The fuel pump is at the front of the engine, but the pick up point in the tank, is a long way back.  That makes the suction line nearly 3 metres long.  I have found quite clearly, that the smallest leak in that fuel suction line, anywhere between the pump inlet, & the tank pickup, will result in no fuel arriving at the carby.

It has happened to me, & the tiniest leak, reduced the suction so much, "it wouldn't pull the skin off a custard.".  I'd check the complete fuel line out, under the car, & on top of the tank in the boot.  Anywhere there is a rubber joiner is a possible leak point.  The rubbers go hard, & the leaks occur.  Replace any rubber joiners.  You'll be surprised how hard the olde ones get, after all these years.  

Cheers  Banjo

  • Upvote 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

×
×
  • Create New...