Author Topic: How long... (Read 2592 times)

Dewey · « **on:** April 05, 2008, 07:49:55 pm »

Does it take to get the air out of the pump/lines.

I just completed a 1.9 metal headgasket swap onto my 1.6TD, swapped pumps with a modded pump (which ended up having to be swapped back to the stock pump because it was pooched :evil: ), timing is spot on at 1.00mm.

The car started on its own, and after stalling out a couple times and coupious amounts of white smoke, idles perfect. But it wont really rev past 3000 rpm at the moment, and smokes like crazy at that RPM(white, air in lines stinky exhaust)

It runs beautiful down below that, so im curious as to what is the best way to get all the air from the system, ie drive gently for an hour, let it idle for a while..? Also note I JUST finished the job no more than 30 min ago, and there was NO issue of air entering the system previous to this, i just wanted a headgasket that would support more boost :wink:

RabbitJockey · « **Reply #1 on:** April 05, 2008, 07:54:56 pm »

i think its ur timing, are you 100% its ok?

RabbitJockey · « **Reply #2 on:** April 05, 2008, 07:55:39 pm »

also check for air leaks in the incoming line

Dewey · « **Reply #3 on:** April 05, 2008, 08:00:04 pm »

Im postive the timing is spot on, cam was locked (with the cam bolt and pulley loose as per the Bently) pump was locked, 3 sets of eyes watching the flywheel timing marks and the dial indicator, plus after locking down the pump 2 rechecks of the dial indicator (this included turning the motor over completely between each check).

I just ran out and looked and there does seem to be some pretty mean looking (dime sized) air bubbles in the supply line (weird becuase before all this the line was bubble free, but then again both lines were disconnected and drained while sitting), and small ones in the return line.

RabbitJockey · « **Reply #4 on:** April 05, 2008, 08:09:48 pm »

check the copper washer seals for dirt and tightness or even cracks.

Dewey · « **Reply #5 on:** April 05, 2008, 10:55:35 pm »

Quote from: "Trev0rbr"

check the copper washer seals for dirt and tightness or even cracks.

I will check those tomorrow, i know there was crap around then, that i neglected to clean before reinstall.

Took the car out for a drive tonight, starts and idles perfect, but will not rev past 3000, its a very firm fuel cut it feels, then alot of missing. Theres still air in the lines, so hopefully i can address that with the washers.

Any other suggestions?

Dewey · « **Reply #6 on:** April 06, 2008, 10:27:54 am »

FIXED !!

lets just say a rookie mistake, such as putting the return line banjo bolt into the supply line hole, creates a serious lack of fuel :oops:

Thank you Trev0rbr for suggesting looking at the copper washers, because if i hadnt been in there looking i probably would still be chasing this !

RabbitJockey · « **Reply #7 on:** April 06, 2008, 11:46:30 am »

haha you're welcome, i had a similar problem with one of my cars but it was caused by a previous owner... i pulled my hair out trying to find it haha