Still having a cam issue :(

[Rory]

How fine is your mesh on the turbo...?

 

[danb87]

How fine is your mesh on the turbo...?

just a normal seive rory, doesn seem any diff too wat ive seen on other peeps motors

 

[danb87]

ryans just txt me , says he thought i had uprated cams.... i did say they were standard 100% even my mate said it too me when i read him the txt as he was with me. slightly confused as now he dont think its cam related...that the heads got no more too give.

pretty sure ive stated that right from what i read on his message.

thanks

dan

 

[danb87]

Just looked at igntion timin, was out by 8ish degrees would that make any diffrence, we have got it on the 10 mk now. 8degrees retarded?

 

[Texx]

texx, this is a diffrent engine, this one is fully forged mate, as far as im aware he mate around 270 on the turbo/engin.

So we can assume the cams are aligned correctly as the engine has proven results.

Have you had the crank pulley off to check the timing mark on the timing belt sprocket?

The mark on the crank pulley may line up with the marks on the cover, but it's been known for the damper in the pulley to slip and so the outer part of the pulley with the timing marker on may be out of alignment, so the pulley needs to come off to confirm the valve timing is 100% correct. If you've already checked this then we can assume the cause isn't cam/valve timing related.

im trying too run1.4-1.5br mate, from what ryans said its holding boost fine

As the turbo is holding the set boost we can assume the cause isn't turbo/boost control/wastegate related.

the power or torque drops off. which hes told me engine effiency. cams too be exact. but ive checked them time an time again. he also told me i need too dial them in? but ive no idea what this is myself.

Without having made some measurement of gas pressure and temperature in the exhaust manifold he'll be guessing it's a VE issue.

The cams don't need 'dialing in'. Your using stock cams that are geared together, the inlet and exhaust cams are aligned using the marks on the gears and then the exhaust cam is timed up to the crank using the 4E TDC mark on the cam sprocket and the TDC mark on the crank sprocket.

but the problem i have is why this has only happened wih mine. seems others dont get this issue an not being an expert i aint gota clue what too do texx.

Out of interest what spark plugs are you using? Have they been removed for inspection?

Are the contacts on the rotor arm and distributor cap in good condition?

Have the valve clearances been checked (with the engine cold)?

Have you still got the homemade front exit exhaust? It could be worth swapping the exhausts to eliminate any blockage causing excessive exhaust back pressure.

As Rory has implied, it may be worth removing the mesh from the turbo, a decent air filter would be more beneficial.

I know it's more expense, but personally I would check the above, swap the exhaust, remove the mesh from the turbo, confirm the base timing is set correctly using a timing light and then get another run on a dyno. Maybe even take another set of plugs, leads and possibly an ignition coil with you just so you've got something to try whilst your there.

 

[Texx]

Also whilst you've got the bonnet up compression test the engine as that will also help rule out a valve timing and sealing issue.

 

[danb87]

texx, just done the timing, was about 8degrees out? this might be due too when was a the dyno last week as ryan could not get laptop workin, adjusted the dizzy manually. but when checked it was out an is now set too 10 with dial on timing gun at 0.

we haven had the crank pulley off no mate. but checked the timin all alligned an all marks seem too be spot on.

how do you check valve clearences?

had the dizzy apart also an seems all ok inside. the cap it self looks a bit work on the plastic but the terminals inside look ok.

i dont have the front exit anymore ive a full system on it.

ye im in the process of getting a filter relocation kit for it.

the plugs were removed wednesday an checked for me an look good. didn check the gap on them tho as did not have a feeler gauge handy, but can be done at any time. they are ngk heat range 8 ones.

 

[Texx]

just done the timing, was about 8degrees out? this might be due too when was a the dyno last week as ryan could not get laptop workin, adjusted the dizzy manually

Seeing as he's so awesome (according to his previous post) you would have thought he might have invested in a timing light and actually used it!

we haven had the crank pulley off no mate. but checked the timin all alligned an all marks seem too be spot on.

For how long it takes I would suggest you pull the pulley off and check the timing mark at the crank sprocket, it'll completely rule out any issue with the valve timing so you can concentrate on investigating elsewhere.

how do you check valve clearences?

4E-FTE Valve clearance with the engine cold are:

Intake 0.17mm - 0.23mm
Exhaust 0.27mm - 0.33mm

 

[Ryan.g]

Seeing as he's so awesome (according to his previous post) you would have thought he might have invested in a timing light and actually used it!

Guys im not trying to start mapping these cars daily and invade your forum so why the attitude. I have 2 timing lights in the car yes but the dizzy was just moved advanced slightly and back again to ensure that the map was still 100% on the ignition timing front after the changes Dan had made to the engine and my Laptop with windows 7 not working.

 

[Ryan.g]

Dan please tell me you are joking. If you have moved the dizzy to 10 then DONT Put your foot down in your car as it will be too advanced and knock. The timing was set to 8 for a reason to match the ignition timing seen on the emu to match the engine timing! put it back!!!

texx, just done the timing, was about 8degrees out? this might be due too when was a the dyno last week as ryan could not get laptop workin, adjusted the dizzy manually. but when checked it was out an is now set too 10 with dial on timing gun at 0.

we haven had the crank pulley off no mate. but checked the timin all alligned an all marks seem too be spot on.

how do you check valve clearences?

had the dizzy apart also an seems all ok inside. the cap it self looks a bit work on the plastic but the terminals inside look ok.

i dont have the front exit anymore ive a full system on it.

ye im in the process of getting a filter relocation kit for it.

the plugs were removed wednesday an checked for me an look good. didn check the gap on them tho as did not have a feeler gauge handy, but can be done at any time. they are ngk heat range 8 ones.

 

[jayc-glanza17]

i know the engine in dans car, good mates with mark when he had in his glanza, and he never had these issues...
and it did have some porting and was done when tmd built the engine...
dan have u tested car since timing been re adjusted??

 

[weeJohn]

So the cam timing was checked by this method below, using the belt pulleys and not the auxiliary pulleys....
http://www.dubse7en.co.uk/starlet/timingbeltstarlet.pdf

Did you try removing the mesh from the turbo on the dyno to see if it improved the volumetric efficiency, rather than start pulling it apart and costing yourself a few hundred doing work that is not necessary?
I think this point should be pointed out as there have been 3 or 4 cars tuned on this island by some of stupid paddys (not experts) to over 300 bhp on standard heads, cams, inlet manifolds and throttle bodies. One of them actually made over 400 bhp with 5E cams, but what the fuck would we know.

 

[BallıGee]

texx

if i rep your for all your post i dont even think that would be enough

your a huge help to this forum :beer:

 

[ktl]

I feel its unfair to blame Ryan just because someone is having issue with there engine when Ryans job was just to map the car, not fix a engine thats not working properly. Ryan has mapped the car to the desire boost level that Dan wanted, and made sure its fueling well within the safe limits!!

I have used Ryan in the past for the starlet who i recommended to Dan and made 268hp td04 1.4bar, no problems at all and the service was 110%. Ryan showed me what standalone ECUs he gets involved with and doesnt come nowhere near an EMU!!!....



So Dan has advanced his timing and now could be detting.... are you guys gonna blame Ryan if the engine goes tits up ?

Why cant Dan just take it to a reputable garage and leave the car there untill its fixed, instead of messing about with things and could make matters worse. Surely this would solve the whole issue quicker instead of guessing.

I believe Ryan knows what hes doing, he done his job, and was happily to take the car back to get a re check / tweak the map.


Eric

 

[danb87]

First of all, ye the timin was adjusted as was also told too check this. An when i looked at the guide i checked it too that. Ryan ive only driven home fro
300m up the road have not put my foot down. Ye i can tell that something could be wel out now. But im doin as im told. Eric no ones sayin ryans job is too solve it or too even take the job On in the first place. But when theres an issue im entitled too ask why things aint as they shud be.

So basically i should just get it all redone from scratch yea?

 

[ktl]

A few comments have popped up regarding about Ryan which is why i felt i had to leave my opinion. I just want people to know that Ryan is a good man, and not a monkey when it comes to mapping.

 

[danb87]

Ive not said he is mate. Ive seen what he can do, i kno he has mapped some seriously fast cars, but me askin questions on certain things are not me slatin ryan as a person or a tuner its just a thing that i have too do too see qhat peoples opinions on my issues are.

It doesn help i myself aint a perfect technician when it comes too the tuning side. But there somes too a point when you think why am i bothering

 

[sx_turbo]

just to check,

when you are playing with the ignition timing have you or ryan remembered to bridge the ecu?????

this needs to be done otherwise the ecu will just adjust itself.

also when timing the disi up, do it when cold, take the rocker cover off and line it up with the marks on the camshaft, there is a raised line on the end of the cam, and a dimple on the disi (this is all from memory) these should line up exactly, the disi in theory shouldnt need adjusting after this, but if it does then remember to bridge the ecu

 

[sx_turbo]

also to add, can people please refrain from slating ryan, so far he hasnt really done much wrong and just cause he doesnt know starlets inside out doesnt mean we can slate him, instead we should be helping him,

 

[danb87]

pretty sure, the diag was not bridged when ryan done the adjusting too dizze at dyno, but then again i didn know about this myself so how was he supposed too kno lol.

so tht could be an issue there?