Recent engine rebuild ( Loudish Metalic Ticking noise)

[ChrisCurzon]

does it sound like my Ibiza did when it was broke?

 

[DaNnY_LaD]

Very interesting that point Chris?.....

I've got a video of it on warm up mode and normal idle and the revs are dead steady now I've fitted my OEM throttle bodie and 3bar but its still missfiring...

I'm going todo a compression test tomorrow and check the wiring on the coilpacks...

 

[ChrisCurzon]

just thinking sounds like mine from what your saying, have to have a look at it. that was fuel pump due to fuel pressure.

 

[DaNnY_LaD]

Right i went to my local motor factors this morning and bought a compression tester which was pretty cheap...

Anyway i let the engine warm up to 90degrees water temp(gauge) then took out the spark plugs & coilpacks and unplugged the injectors then screwed the gauge in by hand..

I then turned it over with the throttle body fully open(wot) for atlease 10-15secs....

Results are;

Cyl 1 : 75psi
cyl 2: 75psi
cyl 3: 75 psi
cyl 4 : 50psi.

Now im not sure weather the guage is accurate or it was leaking but like i sad these are my poor results im also uploading a video of it on warm up mode also im getting a slight knock/rattle every so often on the gearbox side were the DMF would sit....It doesnt knock with increase engine revs just a tiny bit on idle...

 

[PhilW]

All waayyyyyy below wear limit. Either you've done something wrong or your engine is ****ed.

Whats your AFR on idle?

 

[DaNnY_LaD]

Currently Uploading video of it now..

Afr on idle is 14.6 and 900rpm dead steady

 

[DaNnY_LaD]

This a Video of it on warm up mode with the OEM TB fitted and exhaust sorted too....its abit long winded video so please be pateicate.....

http://www.youtube.com/watch?v=Td4ZL47CejM

 

[hardcore4]

Danny, may sound daft but how long is it since the engine has run after the belt failed? Maybe lack of oil in the hydraulic lifters causing them to stick open/closed slightly?

 

[DaNnY_LaD]

around 2 1/2 months or so...

 

[hardcore4]

that could easily be the case then mate, no oil in the lifters for 2 months is well enough to make them stick! I've had this issue with k series engines after a week with no oil let alone 2 months! have you tried holding the engine at 2.5-3k for 10 minutes or so to see if it clears?

 

[DaNnY_LaD]

No i havent done that....I didnt even think of it being the lifters

 

[hardcore4]

Thats what my money is on mate, give it a bash

 

[DaNnY_LaD]

how about actually go and drive it?

 

[hardcore4]

yea that would do the same thing

 

[DaNnY_LaD]

ok il take it for a sensible drive later...

this is the other video with my RS4 Throttle body fitted:

Video 2:
http://www.youtube.com/watch?v=qfZqdD5PHJU

this is on warm up mode too plus near the end of the video wen i rev it quicly you can hear a knock.. which is coming from the gearbox/DMF

 

[DaNnY_LaD]

Hi guys,

It tryes driving it last night while traffic was quite..and car is hard to drive underload it will splutter like made...

I'm lost on what else to try...

 

[CupraMVR]

I think it could of been sticky lifters cause it was rusty top end. and with no oil up there for a while can make them stick.

 

[Jamie225]

are all the vac pipes/fpr pipe on the right way? disconnect the vaccum and try it, if its the same then its nothing vacuum related, if its ok maybe a pipe somewhere. Also have you measured fuel pressure?

 

[hardcore4]

Try just holding the revs between 2-3.5k when engine warm at a stand still danny. With such low compression on all cylinders this definitely sounds like the lifters are sticking!

 

[DaNnY_LaD]

So let it warm up to temp then keep ot at 2
5k ish for a while...