All Things Mk5 > Mk5 General Area

Mk5 GT impossible tapping noise

<< < (2/2)

Von:
UPDATE: So I have replaced the timing belt system, and the tapping isnt gone, but something i believe i forgot to mention, last time i checked the oil filter there appeared to be some silicone bits stuck to it, i believe the previous owner did some shady repairing with silicone and it ended up in the engine, so we went and checked the oil pump, which seems to be clogged, weird, because the oil pressure test was fine, now im going back and replacing the oil pump and the piston rod bearings.
Also, genuine question, since my turbo is pretty much done for, would a bigger turbo be an easy upgrade, or am i gonna have to replace injectors and so on?

OllieVRS:
Usually bigger turbos means bigger injectors, plus necessary supporting mods such as intercooler, high pressure fuel pump upgrades etc. Otherwise you will gain little power over the stock turbo. So you have to factor the cost of everything in.

I would say unless you've got money to burn you should just get your current turbo remanufactured/refurbished.

Why do you want to replace the oil pump if it's giving you good pressure numbers? In the 2.0TFSI the oil pump's balance shaft can become worn and loose and create an internal leak, but it's pretty obvious as it can be wiggled around. Just check nothing mechanical feels loose in the pump and there's no major scratching in the pump mechanism and it should be fine.

Rod bearings are worth replacing if they're obviously knocking, which is much louder on decel. Does your knocking get louder on decel? And they're also worth replacing if the engine has a history of low oil pressure, just for safety. I replaced my rod bearings as I got low oil pressure and there was evidence the previous owner did too. I replaced mine without taking the head off, by just pushing the pistons up from the bottom.

Von:
The tapping is only audible when revving the engine up to 2k rpm, you dont hear it on deccel. I managed to replace the oil pump and rod bearings, noise isnt gone, and another problem popped up, the car starts perfectly fine the first time, then, if you shut it off, it wont start for a minute or so, after which it will start again, any idea whats causing that?

ZoliWorks:

--- Quote from: Von on May 01, 2024, 01:15:23 pm ---Also, genuine question, since my turbo is pretty much done for, would a bigger turbo be an easy upgrade, or am i gonna have to replace injectors and so on?

--- End quote ---

As someone who's done it on the 1.4 122hp CAXA, I'd advise against it. I've installed the turbocharger off of a CAVD (160hp), no cat downpipe, full 63mm exhaust, front mount intercooler kit, watercooled-intercooler block-off, r8 coils mod, ngk 1 step colder plugs and probably a few minor things I'm forgetting. The car was able to achieve 240hp on 100 octane and a little over 320nm torque.

It's fun for a while but you get bored of it fast. If you want fun, the 1.4 is not it. There's no replacement for displacement. You'll be spending upwards of 6k to make your car go faster than a stock GTI, who then can get a remap for $400 and beat you anyway. It's a small engine with a lack of low-down power.

Plus, you, on the BLG, should be able to just get a remap and get 200-210hp, so is it really worth investing all that money for 30 extra? Get a GTI, you wont regret it if you want fun, you will regret it if you want fuel economy..


TLDR: Fix your turbo rather than upgrade, not worth the investment.

Von:
Cheers, safe to say a turbo upgrade is off the map.

Navigation

[0] Message Index

[*] Previous page