Starting problems, sounding like a tractor,
Turbo Mini Forums

Hi,

finally got the 998 turbo running. lasted all of 2 days, then suddenly lost power and really struggled to move above like 2000-2500rpm, sounded like a tractor when it did get there.

Turned it off and it really didnt want to restart. had to give it loads of throttle to get it going. I had an issue with it running before and the tee piece carb trick made it run alot better.

im using megajolt if that makes a difference, I have a spark at the plugs.

I have checked over all the pipes round the carb and round the turbo and all seem free from any spilts.

pretty hard to explain the issue, I did alot of searches and couldnt find any thing. Just confused me how one second its fine the next its rubbish.

hopefully some one can help.

Thanks

compression test.

has the manifold/manifolds come loose.

If something is worth doing, it's worth doing half of.

Sounds like the exhaust has fallen off at the elbow.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

Has your trigger wheel for megajolt moved?

Check you ignition leads firing order

fast replies as usual so thanks

will do a compression test tonight.

exhaust still seemed to be solid but was getting dark when checking last night so will clarify that one.

trigger wheel was still tight, but will check timing tonight aswell

due to it running fine before, it cant be the order can it? on my coilpack it is number 1 to 4, im assuming these just go straight to the same spark plug so 1 to 1 is this correct

Coil pack could have failed (unlikely but possible)

If something is worth doing, it's worth doing half of.

as benross says it will still run but badl with miss matched leads

Will double check the firing order tonight. and make sure the coil pack is okay

As it's MS and a coil pack, your leads will either be right or wrong.

but 1-and-4 or 2-and-3 can be swapped with no ill effects.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

as above
also fuel delivery worth a check :)

Reading up on RTS Clutches

i had this problem on my n/a 1380 found it to be a failed head gasket between cyinders 2 and 3

Didnt manage to check compression last night. just checked now theses are the results

no. 4 20psi
no. 3 20psi
no. 2 130psi
no. 1 130psi

so from those results the head gasket has gone between 3 & 4 is that correct?

Looks that way.

head gasket has gone and guessing by the figures its gone took the kids and emptied your visa at the same time
40 mins and it will be running again

Yes i moved to the darkside

Instagram @jdm_brett

Thanks for the clarification. Anything else worth changing at same time?

while the head is of i would stick an injection exhaust manifold gasket on there, the ones with the fire rings on the exhaust ports,

Yes i moved to the darkside

Instagram @jdm_brett

Thanks will replace that aswell.

Thanks for the help everyone is much appreciated

What you need to think about is why it went.

Too much advance
Too much boost
To little fuel

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

So got the Head gasket all changed at the weekend.

But hit another problem,



when it gets up to temperature it kicks out white smoke, but only when im pulling up to lights or going to low revs in first and second, (so off boost). I saw this on another thread that white means water, but im not losing any and i think it smells of oil.

compression is same accross all 4 if that makes a diference

I did change the head aswell when I put the new gasket on, (but it did smoke a little before the head gasket was changed)

Any ideas?

thanks in advance

White smoke (or very very light blue ) can also be oil straight into the exhaust how's the turbo?
Smokey turbos usually clean up when your on the power too

Yes i moved to the darkside

Instagram @jdm_brett

Turbo seemed in really good condition no play or anything. No smoke when driving on boost. What's the best way to check if it this, would the seal go both sides. I can't see any oil in the inlet side of the turbo.

Just had the rocker cover off and there is some white stuff in there, would this be any thing to do with the white smoke?

and what causes the white stuff?

had a search but couldnt find any thing

thanks

If you didn't change the oil when you did the head gasket, the white smokes the water burning off thats in the oil.
The mayo in the rocker cover seems to confirm this.

Will drain the oil and give that ago thanks for the help. Will update