Pushrods Heath….
Time for spec savers youngster.
Posted 10 November 2022 - 04:16 PM
Pushrods Heath….
Time for spec savers youngster.
Posted 11 November 2022 - 08:09 AM
Sorry! Not sure how that happened, lol.
Posted 11 November 2022 - 09:02 PM
Sorry! Not sure how that happened, lol.
(Drugz smokin hippie)
Posted 13 November 2022 - 03:29 PM
Here's where i'm at.
Perhaps Doreme will chime in.
I've had 2 guys look at the engine. Both of whom i have deep respect for.
Guy #1 is a well respected diesel mechanic with history of building 355's but not roller cams.
His diagnosis : After measuring up & deciding that the rocker posts needed to be shimmed 2mm , i don't need pushrods.
We packed one up with washers to determine the height.
I bought 16 x 2mm spacers (machine washers) & fitted 2 of them. I then ran out of adjustment on the rockers..
Guy #2: Older guy. Well respected drag racer & engine / chassis builder (retired).
His diagnosis : I don't need new pushrods. He showed me how to set one up though. Basically the same as any other rocker gear.
So i backed off ALL of the adjustment on the Yella Terra Platnum series rockers to find zero lash.
Even fully backed off, it kinda needed another 1/2 turn that i didn't have.
So i wound the adjustment in 1 turn & again checked the valve - roller footprint , which was ok. So i screwed them all in 1 turn.
I guess i will see when it fires up. It will either clack clack it's arse off, or hum.
Posted 14 December 2022 - 05:06 PM
Well ..................... it clacked its arse off! Hahahahha.
Crank is hitting the sump. I've ordered a Aeroflow jobbie for $290 & it's supposed to be here on xmas eve,
Just another piece of the puzzle.
Posted 16 December 2022 - 05:03 PM
This is how you make them clear a 383, by the way.
http://www.gmh-toran...atch/?p=1017245
Not sure how big you need to go for a 355.
Posted 17 December 2022 - 05:35 AM
Wish I'd realised before installing the engine, but mine only need some light persuasion for the 355. Basically just make sure the windage tray/baffle is pushed down rather than sitting up, was just a couple of rod bolts glancing it. Easy to fix on the engine stand.
Posted 17 December 2022 - 03:32 PM
It's just one of those things that bit me in the ass.
I had wound it over to check when i fitted the sump & heard / felt no issue.
It's a H.E sump that i was using. The Commodore also had a H.E but it's a bit deeper.
Posted 22 December 2022 - 04:06 PM
Well i was tracking the sump from when it was posted in Sydney. It took 4 days to make it to Brisbane.
It then took a further 4 days to arrive in Mackay.
I checked the tracking in the morning ( expecting delivery that day ) only to find that somehow it had overnighted itself back to Brisbane!
It arrived 2 days later. Good ol' Aussie post!
But now my hoist is playing games. One of the column locks isn't locking. I've contacted the manufacturer who suggested giving the lock assembly a squirt with WD40.
Well i gave it a bath!
It can soak overnight & i'll reinvestigate in the morning.
Starting to think that i've run over a Chinaman.
Posted 11 February 2023 - 11:53 AM
Sump is on , knock is gone.It turned out to be the crank was just kissing the center tack weld on the windage tray. I tap with a hammer would have cured it but meh!
So it's running .......... poorly.
I've set the timing to around 14 deg , they usually run on 10 but the cam might have something to do with that.
The tappets are just a little noisy so i think i will remove the brake booster ( to get the rocker cover off ) & the blower ( to get the other rocker cover off ) & nip the rockers down another 1/4 turn.
At the end of the run it started over fuelling . I've thought long & hard about this & i'm leaning towards a faulty fuel pressure regulator.
I never fitted the pulse dampener to the fuel system . Occasionally it would surge about 200 rpm at idle. I figured having no dampener was possibly the problem , but then i noticed that the fuel pressure was fluctuating while this was occurring.
When i shut the ignition off, the fuel rail pressure is dropping off to zero . I'm sure that it should be maintaining pressure?
Another issue that i have brought on is that i'm trying to run the engine from the stock ECU ( hot chip ) that i was using with the 304.
The 355 has larger injectors & i'm thinking that could also be the cause of the over fuelling issue?
The Engine is a roller cam VT which i extracted from a VR. The VR ECU won't work with the VN loom & i can't simply swap memcals unfortunately.
I've found a guy in S.A who can take the info on the VR memcal & print it onto a VN memcal , but i think the supercharger will require a new program , & there is nobody local who can do this . I can't afford a 2K bill at a tuners for a dyno.
I'm not sure what to do now but Rockynats is getting closer.
Posted 12 February 2023 - 05:38 AM
Have a look on this site, you should be able to find someone closer. https://pcmhacking.net
Posted 18 March 2023 - 05:58 PM
So where i'm at.
I sent the VR chip to Chiptorque in Brisbane.
They transfered the data from the VR chip to a VN one. They also had to do something else with the program to compensate for the supercharger. That will be $275 thanks.
I've fitted the chip but i'm still unsure about the fuel pressure regulator.
When i stop cranking , or turn the ignition off the fuel pressure drops instantly to zero.
I rang YellaTerra & found out that the fuel pressure regulator was an OEM item & that they no longer have parts for .
Just put any old fuel reg on it mate , it will be fine ! We don't even supply fuel regs in our blower kits these days.
So i bought a new reg from Autobarn. Turns out i need 1 fitting before it can go in.
I went to Autobarn again to buy a fitting. In typical Autobarn style they didn't have one in stock , but they could sell me 2 fittings that would do the job ........ & charge me twice the fkn price !
I really don't like going there. Their " She'll be right mate " attitude shits me off.
So tomorrow i will have the required fitting , won't take long to fab up a bracket & in it goes.
Then i can reset the timing , hopefully before the battery goes flat , set the fuel pressure & hopefully have a running toy again.
Rockynats is even closer.
I had to put it out of the shed to work on something else. When i went to drive it back in the shed it wouldn't bloody start. UGH!
So it slept outside in the rain for a couple of days. At least it got a nature wash.
333714834_1370559283514040_9145997483286898468_n.jpg 445.88K 3 downloads
Posted 01 May 2023 - 05:10 PM
So, what's happening here? Get her back inside?
Posted 02 May 2023 - 01:19 PM
Well ....... i hooked the ride on up to the front & dragged it forward . I then moved the mower to the rear ( after cleaning out an escape route ) to drag it into the shed .
When i went to start the mower again , the ignition barrel shit itself. Interesting to note that genuine John Deer ignition barrels are cheaper than some of th Chinese copies.
I ended up enlisting the help from the neighbours to push it back in the shed.
Then Rockynats came & went.
I had a sparky mate drop over & test / solder some earths , thinking that it might be the problem. It wasn't !
All out of ideas i had a mechinic / sparky come over only to confirm what i had told him. Yes it has fuel , spark & compression. Atleast he only charged me $50.
So where is it at now ?
I've drained the fuel system & put another jerry can of fresh 98 in the tank .
I removed the blower ( getting fkn tired of doing this ) so i could access the fuel rails. I removed the injectors & reinstalled the stock injectors. I don't know anything about pintal caps but i'm suspecting that the new caps were far too restrictive compared to the old caps. Either way i left them off.
I'm waiting on a mate to drop over & give me a hand to set the timing . Hopefully it will run.
If it doesn't , then i am completely out of ideas.
Posted 03 May 2023 - 09:27 AM
Ah man - sounds awesome... Is it something to do with the computer you had changed?
Posted 03 May 2023 - 11:57 AM
I had a new memcal programmed.
I pulled 6 plugs out ( can you guess which 2 i still have to pull ? ) & cleaned them up. Almost got the timing right , & it fired up & ran.
Now i have to pull the blower again & correctly fit the blow off valve pipe. Probably shouldn't have fitted it in the dark.
Getting closer.
Posted 03 May 2023 - 12:28 PM
Excellent! And yeah, light helps, I have a massive portable video light I drag everywhwre with me these days. Glad to hear you got it running.
Posted 05 November 2023 - 07:57 PM
Well i completely ran out of ideas.
I bit the bullet & took the car to a local speed shop. (not the chemical kind)
They insisted that the large injectors should be in the car because that;s what the memcal is programmed to . Made sense.
So he cleaned up the injectors (they all passed) , i then loaded my toolbox up & went to his shop & pulled the fkn blower off again , swapped out the injectors & put it all back together again , all in about 40 mins.
I left him with instructions to set the timing , if needed adjust the fuel pressure & let me know the outcome.
6 weeks after dropping the car off i got a call. "Ah you can pick the car up. I can't fix it. I think the problem is in the chip ."
I did drive it home. It wanted to stall at every set of lights . From idle it has a HUGE flat spot. Tickle it like Elmo & once it's over the flat spot , it goes like a rocket ship.
So what now ? I guess i will try to swap the old chip back in & see if it makes any difference. If it does , then the problem is the chip. If it doesn't , then i'll swap out the throttle body.
Then i'm out of ideas again.
Posted 05 November 2023 - 08:04 PM
Well i completely ran out of ideas.
I bit the bullet & took the car to a local speed shop. (not the chemical kind)
They insisted that the large injectors should be in the car because that;s what the memcal is programmed to . Made sense.
So he cleaned up the injectors (they all passed) , i then loaded my toolbox up & went to his shop & pulled the fkn blower off again , swapped out the injectors & put it all back together again , all in about 40 mins.
I left him with instructions to set the timing , if needed adjust the fuel pressure & let me know the outcome.
6 weeks after dropping the car off i got a call. "Ah you can pick the car up. I can't fix it. I think the problem is in the chip ."
I did drive it home. It wanted to stall at every set of lights . From idle it has a HUGE flat spot. Tickle it like Elmo & once it's over the flat spot , it goes like a rocket ship.
So what now ? I guess i will try to swap the old chip back in & see if it makes any difference. If it does , then the problem is the chip. If it doesn't , then i'll swap out the throttle body.
Then i'm out of ideas again.
Sounds like a vacuum leak?
Posted 05 November 2023 - 08:12 PM
Sounds like a vacuum leak?
Could be over-fueling too? (Could be a dozen things really!)
Any idea what the AFR is doing when it plays up?
Posted 05 November 2023 - 08:38 PM
Could be over-fueling too? (Could be a dozen things really!)
Any idea what the AFR is doing when it plays up?
I get that, these days though, everyone looks at the hi-tech stuff before the basics.
Posted 06 November 2023 - 11:33 AM
That's the first thing i checked Rob.
All of the lines are in good condition.
Posted 06 November 2023 - 11:40 AM
Well i completely ran out of ideas.
I bit the bullet & took the car to a local speed shop. (not the chemical kind)
They insisted that the large injectors should be in the car because that;s what the memcal is programmed to . Made sense.
So he cleaned up the injectors (they all passed) , i then loaded my toolbox up & went to his shop & pulled the fkn blower off again , swapped out the injectors & put it all back together again , all in about 40 mins.
I left him with instructions to set the timing , if needed adjust the fuel pressure & let me know the outcome.
6 weeks after dropping the car off i got a call. "Ah you can pick the car up. I can't fix it. I think the problem is in the chip ."
I did drive it home. It wanted to stall at every set of lights . From idle it has a HUGE flat spot. Tickle it like Elmo & once it's over the flat spot , it goes like a rocket ship.
So what now ? I guess i will try to swap the old chip back in & see if it makes any difference. If it does , then the problem is the chip. If it doesn't , then i'll swap out the throttle body.
Then i'm out of ideas again.
I remember when we put an injected 308 into my mate's WB cab-chassis with a Muncie. It was all VP top end, harness and EUC/memcal. It kept stalling at a stop sign or traffic lights when you put the clutch in and idled it. Turned out to be a dodgy MAP sensor. Changed it and it was all good. Might be a stupid question, have you got the right MAP sensor for a blown application?
Posted 07 November 2023 - 10:31 AM
The blower is a YellaTerra kit. It doesn't require any upgrades from the stock GM set up. It's basically a straight bolt on kit that uses the stock ECU & MAP.
It is designed as a straight bolt on for VN /P 5L engines.
But here's the curve ball , it's not designed for the VT engine , & it is probably too small for the 355.
2 reasons i can think off as to why it doesn't fit VT . 1/ The supplied intake manifold fouls on the lifter retainer plate ( which i overcome by fitting tie bar lifters ) , 2/ The VT runs a serpentine belt .
Posted 07 November 2023 - 11:30 AM
The blower is a YellaTerra kit. It doesn't require any upgrades from the stock GM set up. It's basically a straight bolt on kit that uses the stock ECU & MAP.
It is designed as a straight bolt on for VN /P 5L engines.
But here's the curve ball , it's not designed for the VT engine , & it is probably too small for the 355.
2 reasons i can think off as to why it doesn't fit VT . 1/ The supplied intake manifold fouls on the lifter retainer plate ( which i overcome by fitting tie bar lifters ) , 2/ The VT runs a serpentine belt .
Are you certain it doesn't require a boosted MAP sensor? When I put an Eaton/Magnusson blower on my Hilux it required a different sensor as the standard one was referenced to atmosphere.
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