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Old 05-09-2013, 06:15 AM   #251
MadDog_945
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Yeah,

we could tune a bit.. Now it runs on 0,8bar of boost and a tune where the IAC sometimes cannot handle rpm drops which will kill the engine with drowning every once of a while..

it pulls straight from 2000 till 5500 and becomes funny @ about 3800.


We lost much time in Berlins rushhour and on the "testtrack" where i had to remove and reinstall my intank pump cause a hose became loose and the pump was flowing bubbles to my 044 mainpump.. heard that surging noise while tuning idle and ignangles.. to fix that took 1h.. after it was fixed we did about 50kms. Pulls in 3rd from 2000-5500 to check everything is fine.. found some holes where it ran rich and was dropping to near lamda1 on WOT.. fixed that and every pull became better and better.

But still idle drops make the engine stall.. we found some tables which are dedicated to the IAC valve but we couldnt figure out how to tune it 100% correctly.. but drops from 3000rpm work in 90%. Rpm drops in traffic like traffic jams where you accelerate a bit and push the clutch will still kil the engine in 95% of all cases... which makes highway jams to PITA ;)

In the End im able to say it was a successful day but could have been more.


We pushed the engine not over 5500 cause i have some rassling/defective hydraulic lifters..

Also i did a MOT exhaustgastest yesterday which i did not pass cause of much too much of CO. My car created a nice fogshow of oilmist.. dont know if turbo or valveseals... we'll see.. have to spare some money first to move on..
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Old 05-27-2013, 03:36 AM   #252
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I am changing the valveseals right now.. after a little bit of dumb i dumped one keeper into the oilpan through the middle oilchannel... But with an endoscope and a 45° mirror with magnet we got it after a bit time of swearing... ;)


Here are some pics..:





















First time i've installed the seals i haven't used the plasticcaps to save the seallips. It may have damaged them cause i was like.. "whut?!! look at this !!! how smooth they go through with some oil *rrrrt rrrt rrrrt*"

This time i ordered some "valvecondoms" but they suck.. too thin and can be used only once.. Masterplan.. go in kitchen and search for Cocktailstraws.. bitchplease ! the yellow stuff is such a straw ;)



Oh.. and my generator is down.. makes some furious noises... but i have a replacement already..
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Old 05-27-2013, 06:12 AM   #253
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Quote:
Originally Posted by MadDog_945 View Post
My car created a nice fogshow of oilmist.. dont know if turbo or valveseals... we'll see.. have to spare some money first to move on..
Normally valve stem oil seals cause oil burn on the overrun, ie when you shut the throttle and coast down a hill on engine braking type scenario. They can be really bad and cause no significant oil burning during normal running.

Nice car BTW, I like it a lot.
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Old 05-27-2013, 06:23 AM   #254
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Thx !


Yeah i know.. it's in throttle disengangement downhill or when revving abruptlyhigh and letting it fly down... Im doing this only cause i have some time till the generator arrives and cause i thought i have damged them.. they look all good..


I fear my Turbo is the one who burns some oil.. but a buddy said im smoking a lot when accelerating with a cold engine.. hm.. maybe the pistonrings? I have a good play of 8 hundreds for my pistons.. mh??
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Old 05-27-2013, 07:33 AM   #255
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Hope not for you, a set of valve stem oil seals is rather less painful on the wallet......
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Old 05-31-2013, 03:44 AM   #256
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Some more pics:






New Hydros...


...ah... so sweet



In the Meantime somewhere in northern North Germany 1st German 7er/9er Meeting














Visitors from Sverige.. for a little chance i hoped Rada would be there too ;)


The Trek waiting for a flap bridge across the North-Eastsea Channel




We had a ferry across the the channel again all for us.. the Captain looked very scared when 30 Volvo were entering his ferry hehe ;)


The Lunch Checkpoint.. pity it never stopped raining that day...


Me and my dog on the last Checkpoint, the ex Army Airport Hungriger Wolf (hungry wolve) now open for business a dogschool settled there.. thought this fits perfectly ;)


Behold !



and.. move on



Me getting the Hydros in.. it's like anywhere else.. if it doesn't want to go in, you've got to lube :D




bam.. now i have "back" dammnit lowered cars are pita for guys >1,90m ;)
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Old 05-31-2013, 07:02 AM   #257
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Is your car running better now? And where was the 7/9er meeting?
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Old 05-31-2013, 07:05 AM   #258
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It was 70km northwest from hamburg..

Car's not running yet, cause my belt is unraveled cause of the defective belt tensioner...
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Old 05-31-2013, 07:07 AM   #259
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Bad news... And the meeting was a lot too far for me... re-bad news...
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Old 05-31-2013, 07:26 AM   #260
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Yeah... belt and tensioner coming new.. tensioner already installed and belt will arrive tomorrow..

Today im doing oil refill and priming..and the rest of cabling wiring of 02 meters and stuff.. was laying around pretty wild in the bay...
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Old 05-31-2013, 10:33 AM   #261
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I would have had the second coolest car in that meet 4
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Old 05-31-2013, 10:39 AM   #262
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my car wasn't there ;)

the typical german volvo enthusiast hasn't got a good meaning off TB ;)

so to say, i'm a 1%er ;)

But what i can say is: your car wouldnt get tüv here ;)
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Old 05-31-2013, 10:46 AM   #263
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Not for the headlights it wouldn't
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Old 06-12-2013, 07:14 AM   #264
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Yep.. a magnet has fallen into Chamber No1... tried to get it out.. no chance.. head off... argh !!

In this case i had to make a break for a few days to overthink my hobby...








Dumbest thing ever happened to me...
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Old 06-12-2013, 07:42 AM   #265
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I know this feeling, it was happen to me...
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Old 06-14-2013, 03:58 AM   #266
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Can someone check up the hone on this pics? is it still OK? seems a lot of wear for me on the walls for that small amount of driving..

Also its seems that the valves had contact.. do they can look like this when pistons hit them while cranking by hand ? or is this a hit while running look? Only inlets btw...







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Old 06-14-2013, 04:19 AM   #267
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Oops, those valves will bent....

How did that that happen, did the belt come loose?

The bores look fine to me, you can still see the honing marks.
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Old 06-14-2013, 04:48 AM   #268
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Quote:
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The bores look fine to me, you can still see the honing marks.
But the pictures seem to show a shining spot on the inlet side of the cylinder wall. If that's not just photo effect, it's not good
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Old 06-14-2013, 05:04 AM   #269
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All Cylinders have these spots on 12 and 6 o'clock as you mentioned but also on 3 and 9 o'clock...


Dont know what this is.. 12and6 looks like pistonslap?

@ the valves: my question was: can the valvepockets on the piston look like this when you turn the motor by hand ?

Cause the motor ran fine while tuning.. no signs of valves beeing hit...


@ Turbosteen.. can you tell me how you do the timing of the cams? Do you have the timing mark on 12oclock to the sealingsurface, or do you use the embedded pin on the valvecover and look from above ? I believe i drove around with 1,5 tooth advanced timing cause i looked from above and used the timing mark.. someone told me the gears should stand 90° to the headsurface


/edit

on this pic its pretty dramatical..

it is no photo effect.. 3and9 oclock
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Old 06-14-2013, 05:18 AM   #270
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But as you can see here... there is still honing left... its not polished...

I dont know if this applies also to the 6/12clock marks.. will check that after work...
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Old 06-14-2013, 05:20 AM   #271
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Sure, if you turned the engine over by hand without the cambelt on then the valves will have hit the pistons. It's an interference engine. You set the pistons, you set the valve gear, bolt the head into place, fit the belt and only then do you turn the crank.

The bores are showing thrust marks, but I can't see any scores. I take it the pistons and rods are correctly handed?
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Old 06-14-2013, 06:31 AM   #272
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Hi,

Yeah i know that its an inteference engine ;) But the valves wont bend when cranked by hand.. im not sitting there with an impactwrench gutting through the motor.

My question was.. do the marks in the pistons come from turning by hand or are they from hitting while running.. i just cant image that a slightly touch while turning per hand causes such marks... but i hope so.. ;)


Yes, the pistons were handed correctly, 0.8hundrets of play.. 96.3 bore and and 96.22 piston

Last edited by MadDog_945; 06-14-2013 at 06:57 AM..
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Old 06-14-2013, 07:03 AM   #273
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The cylinders are looking good for me!

About the pistons mark, I'm sure it can't be done by hand! IIRC, Linuxman had the same marks on the top of his pistons (they're slightly touching the head), and you had valve noise issue before you open your engine...
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Old 06-14-2013, 07:48 AM   #274
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Quote:
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The cylinders are looking good for me!

About the pistons mark, I'm sure it can't be done by hand! IIRC, Linuxman had the same marks on the top of his pistons (they're slightly touching the head), and you had valve noise issue before you open your engine...
Yes i did.. thats the reason i changed Hydraulic lifters... But i turned the motor over dozen of times.. no sign of valves touching the pistons.. and i revved the **** out of the motor. so they should have hit hard... when they hit..


Will post pics of the valves next... and i will check if the valves have leaks with break cleaner...
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Old 06-14-2013, 04:51 PM   #275
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Quote:
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Hi,

Yeah i know that its an inteference engine ;) But the valves wont bend when cranked by hand..
Like hell they won't; it doesn't take much to tweak a valve. It won't bend like a bannana but tweaking one enough that the seal is imperfect is effortless.
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