Chriswrx123
Premier Users
Question is ? Is it just a duff lifter or is it the start of oil pump problems???. I would change lifter then test oil pressure to rule out pump problem
What have you done to your vehicle today?
- Thread starter an88fiero
- Start date
Found a problem.
At a little show in Portchester.
Upon waiting in the queue sudden awesome banging noise, may have it on car cam, Will upload later.
Turned the car off, started to take my car apart in the precinct, both rocker covers off and found the image above. So took that pair of rockers off. Also the other side had that slack push rod, so disabled that cylinder.
So down to 6 cylinder, should be able to limp home slowly. Then look into ordering parts.
Upon waiting in the queue sudden awesome banging noise, may have it on car cam, Will upload later.
Turned the car off, started to take my car apart in the precinct, both rocker covers off and found the image above. So took that pair of rockers off. Also the other side had that slack push rod, so disabled that cylinder.
So down to 6 cylinder, should be able to limp home slowly. Then look into ordering parts.
saleen 192
Core Member
Pleased that you found it but is a starnge place a shopping precinct lol, so will be an easy job new rocket gaskets oil filter and oil and rockers ,
Fairly easy job.To change the lifters its heads off. I'll put in new lifters, pushrods and rockers.
Superglue just isn't holding it together. lol.
saleen 192
Core Member
Impressed that you done alot if this in the open street is the car motor spare's shop still in the shopping area?
Yes the car spares shop was there. He didn't have and rockers on the shelf, we asked.
It did feel odd doing it in the shopping precinct. Went quite well. Only needed 3 tools. 10mm socket, 8mm socket and 6mn Allen key.
Chriswrx123
Premier Users
Dan this is still screaming oil starvation to me !!!!!!
Yeah you could be right, perhaps my lifters are good, and it was just its time for the rocker to go.
Chriswrx123
Premier Users
Or the lack of oil cooling the top end created more heat hence rocker fail and tapping noise from top with less oil pressure in to pump up lifters ?? Both plausible but as you had the ticking noise first would be airing on oil starvation .would test oil pressure side to rule it out
I'm going to have a play some time this week, perhaps Friday evening. There is a show on Saturday, so I aim to be running on 7 cylinders, and will keep an eye on that oil pressure.
Not done anything to the car yet. however did find an old box of bits. This box hasn't been opened for 9 years, around the time I done the heads cam change. It felt like a good weight, so what i was hoping for was the original set of rockers and my old oil pump(which I changed just to upgrade, it had good pressure) However this box didn't contain what i hoped. It has the air pump, IAC valve and vacuum pipes.
Anyway, going to use my new tools, and refit the pair of rockers. Get the car running on 7, and watch that oil pressure. The pressure seems better dependant on revs. So i could make the car idle at 1000rpm instead of 600 which may do the trick and keep me going for a couple more close shows(Hayling and Farmhouse) until i can do the work at a later date. My main aim at the moment if to design the shed, buy the wood and build it before the raining season starts.
Anyway, going to use my new tools, and refit the pair of rockers. Get the car running on 7, and watch that oil pressure. The pressure seems better dependant on revs. So i could make the car idle at 1000rpm instead of 600 which may do the trick and keep me going for a couple more close shows(Hayling and Farmhouse) until i can do the work at a later date. My main aim at the moment if to design the shed, buy the wood and build it before the raining season starts.
Got it running on 7 cylinders.
Running quite well
[video=youtube_share;n3cJxwB4X8c]https://youtu.be/n3cJxwB4X8c[/video]
Updated the blog http://www.solent-renegades.co.uk/entries/57-new-ticking-noise-ta-sept-2016-a
Running quite well
[video=youtube_share;n3cJxwB4X8c]https://youtu.be/n3cJxwB4X8c[/video]
Updated the blog http://www.solent-renegades.co.uk/entries/57-new-ticking-noise-ta-sept-2016-a
AmericanThunder
Super Moderator
Hmm, I'm thinking a valve train geometry problem here. I would get a pushrod measuring tool and make sure the push rods are the right length.
Push-rods all good. No slack in the rods, valves opening and closing perfectly while inspecting with the rockers off and manually turning the engine. Well that was 7 I checked, need another rocker to check the failed one.
AmericanThunder
Super Moderator
Doesn't mean the push rods aren't too long. Are they the stock length?
They are shorter than stock due to the base circle of the aftermarket Cam. Can't recall what it has written on them, I have one on my desk at home, there may be a photo in the blog.
AmericanThunder
Super Moderator
I would expect shorter than stock but I'm guessing they were bought on recommendation and not on actual measurement?
A pushrod length checker is cheap and would be worthwhile doing.
An overly long pushrod would cause premature lifter failure and could be attempting to lift the rocker further than design.
A pushrod length checker is cheap and would be worthwhile doing.
An overly long pushrod would cause premature lifter failure and could be attempting to lift the rocker further than design.
