Reyland centre push issues
27-07-2018, 05:46 PM
#1
Reyland centre push issues
Guys,
anyone got one fitted?
think i have issues with mine, im running a gen reyland kit and one of his clutch master 7 1/4 twin plate clutches, lightened flywheel
ive not had a chance to try it myself but from the description im getting from Mark at M.A.D when coming down the gears to a stop pushing the clutch in is stalling the engine, once in neutral and fired back up with clutch out its fine
not sure if there are any weird noises but id imaging hard to hear due to box
im hoping Mark can fully explain what is happening
cheers Rob
cheers Rob
anyone got one fitted?
think i have issues with mine, im running a gen reyland kit and one of his clutch master 7 1/4 twin plate clutches, lightened flywheel
ive not had a chance to try it myself but from the description im getting from Mark at M.A.D when coming down the gears to a stop pushing the clutch in is stalling the engine, once in neutral and fired back up with clutch out its fine
not sure if there are any weird noises but id imaging hard to hear due to box
im hoping Mark can fully explain what is happening
cheers Rob
cheers Rob
27-07-2018, 06:18 PM
#2
10K+ Poster!!
sounds like it is not fully disengaging the clutch
28-07-2018, 10:40 AM
#5
Also wrapping the downpipe as it's near the master helps.
Hope this make sense.
28-07-2018, 12:03 PM
#6
cool, hopefully this is the issue, its only done 2 mapping R/R seshions and a handful of road miles so will have all been a tad hot, and it has got worse, may need a vac bleed also, will give it a going over once i get the car home
cheers for your advice
28-07-2018, 12:16 PM
#7
PassionFord Post Whore!!
Robert I don’t think you have understood what I have said. The problem is your release bearing dragging your idle speed down by creating to much drag.
Mark
Mark
Trending Topics
28-07-2018, 02:45 PM
#8
ah ok im must have miss understood mate, sometimes not the best line when phoning, anyway if thats the case then strange one ive never heard of that before, why would it do that out of curiosity? (New bearing fitted at time of build unless its slightly off centre some how) or bearing is tight and not spinning freely?
cheers Rob
28-07-2018, 03:54 PM
#10
I very much doubt that that a clutch bearing could muster the mechanical advantage over an engine that would normally idle fine even if the bearing was seized. Does the engine have idle control via an idle valve or relying on ign? The engine has a lightweight flywheel fitted and if its also got shortish duration cams and high comp that would be the cause?
Edited to ask.. Is the engine stalling in neutral or when the clutch is depressed whilst in gear?? Or both?
Edited to ask.. Is the engine stalling in neutral or when the clutch is depressed whilst in gear?? Or both?
Last edited by Martin-Hadland; 28-07-2018 at 04:36 PM.
28-07-2018, 04:49 PM
#11
I very much doubt that that a clutch bearing could muster the mechanical advantage over an engine that would normally idle fine even if the bearing was seized. Does the engine have idle control via an idle valve or relying on ign? The engine has a lightweight flywheel fitted and if its also got shortish duration cams and high comp that would be the cause?
Edited to ask.. Is the engine stalling in neutral or when the clutch is depressed whilst in gear?? Or both?
Edited to ask.. Is the engine stalling in neutral or when the clutch is depressed whilst in gear?? Or both?
Engine has a light weight fly, is 8.1 and runs MAD cams, runs oe idle control valve
i think its when depressed in gear engine is staling, when fired back up and in neutral all is fine, hopefully Mark can confirm this as he is the only one who has drove the car
28-07-2018, 04:55 PM
#12
That says to me that the slave is clamping too much and binding up hence stalling the engine.
I don't like the use of lightened flywheels as they cause gearbox idle noise and eratic idle due to the mass not smoothing out engine firing.
Hope you can resolve the issues without too much trouble.
I don't like the use of lightened flywheels as they cause gearbox idle noise and eratic idle due to the mass not smoothing out engine firing.
Hope you can resolve the issues without too much trouble.
28-07-2018, 05:18 PM
#14
This is why when doing a hyd conversion you need to fit a pedal stop esp if your using a different master.
What's your thoughts?
28-07-2018, 10:36 PM
#17
PassionFord Post Whore!!
I very much doubt that that a clutch bearing could muster the mechanical advantage over an engine that would normally idle fine even if the bearing was seized. Does the engine have idle control via an idle valve or relying on ign? The engine has a lightweight flywheel fitted and if its also got shortish duration cams and high comp that would be the cause?
Edited to ask.. Is the engine stalling in neutral or when the clutch is depressed whilst in gear?? Or both?
Edited to ask.. Is the engine stalling in neutral or when the clutch is depressed whilst in gear?? Or both?
Mark
29-07-2018, 07:13 AM
#18
when you press the clutch it slows the engine so it’s the bearing getting tight and it’s getting worse as it wasn’t like this at first. Clutch and conversion works fine.it isn’t helped by inlet manifold and light flywheel with this set up. Engine revs and idles fine press the clutch and it lowers the engine speed and add a rev and it wants to stall with clutch in and then try and start it with clutch in and it struggles with turning over the engine. So indicating a hard to spin bearing.
Mark
I still don't get how a tight bearing can cause this, surely if its causing enough friction to slow an engine then it would just skid against the clutch fingers? There isn't a crank walk issue is there?
29-07-2018, 08:43 AM
#19
Crank Walk? Surely not its a fresh built engine with only mapping on it
prob best get car home and whip gearbox out , i was hoping just a simple issue so will try adjusting the pedal rose joint and shorten the rod first and vac bleed system
29-07-2018, 10:00 AM
#21
I would remove starter and fit a DTI on the flywheel and have someone press the clutch that way you can be sure.
Are the TTV flywheels made to the same spec as original just lighter?
These things are sent to try us. But once it's sorted it will be awesome....
Are the TTV flywheels made to the same spec as original just lighter?
These things are sent to try us. But once it's sorted it will be awesome....
29-07-2018, 11:32 AM
#31
Rob we was talking about another engine. But if you have massive amount of end float this could be a major issue and causing your stalling.
Please remember we are ALL only guessing at this stage and tbh Mark is the one who has experienced this.
As with anything modified it all needs a final fettle to be perfect.
Please remember we are ALL only guessing at this stage and tbh Mark is the one who has experienced this.
As with anything modified it all needs a final fettle to be perfect.
29-07-2018, 11:38 AM
#32
Rob we was talking about another engine. But if you have massive amount of end float this could be a major issue and causing your stalling.
Please remember we are ALL only guessing at this stage and tbh Mark is the one who has experienced this.
As with anything modified it all needs a final fettle to be perfect.
Please remember we are ALL only guessing at this stage and tbh Mark is the one who has experienced this.
As with anything modified it all needs a final fettle to be perfect.
29-07-2018, 01:20 PM
#33
Crank walk is possible if the thrust bearing drags on the clutch, keeps a slight but continuous pressure on the clutch and crank promoting wear on the thrust face of the crank, I get this problem with the Vauxhall engines I build.
Not saying that is the problem.
Does it all work when the gearbox is in neutral.
The TTV flywheel was not an ultra light weight version, I cannot remember exactly 6-9kg 2wd weight without the clutch
Not saying that is the problem.
Does it all work when the gearbox is in neutral.
The TTV flywheel was not an ultra light weight version, I cannot remember exactly 6-9kg 2wd weight without the clutch
Last edited by steveboyslim; 29-07-2018 at 03:50 PM.
29-07-2018, 02:18 PM
#34
What concerns me about the hydraulic centre push conversion is clutch ware and adjustment due to the fact that modern clutch covers have automatic adjusting fingers??
So with that in mind if you have minimal clearance to start with (new plate) once it has worn the fingers press more on the slave. But on these set ups there is a spring inside the slave to keep it in contact?
Or am I talking rubbish?
So with that in mind if you have minimal clearance to start with (new plate) once it has worn the fingers press more on the slave. But on these set ups there is a spring inside the slave to keep it in contact?
Or am I talking rubbish?
29-07-2018, 09:15 PM
#37
This is why I said to check for free play and depending on what type of master you are using you might need a clutch pedal stop.
Probably difficult to hear any noise over the box esp at idle due to the lightened flywheel causing gear chatter.
I am sure you will sort it.
Probably difficult to hear any noise over the box esp at idle due to the lightened flywheel causing gear chatter.
I am sure you will sort it.
29-07-2018, 09:34 PM
#38
Ok guys,
much appreciated for the input, stuff like this im a bit clue less, everything was bought hoping fit and forget, i’ll update once car is home and box is out
By sounds of the input there could be a few faultsto check for
i guess i could even try a borescope also
cheers Rob
much appreciated for the input, stuff like this im a bit clue less, everything was bought hoping fit and forget, i’ll update once car is home and box is out
By sounds of the input there could be a few faultsto check for
i guess i could even try a borescope also
cheers Rob
30-07-2018, 12:41 PM
#39
10K+ Poster!!
Ok guys,
much appreciated for the input, stuff like this im a bit clue less, everything was bought hoping fit and forget, i’ll update once car is home and box is out
By sounds of the input there could be a few faultsto check for
i guess i could even try a borescope also
cheers Rob
much appreciated for the input, stuff like this im a bit clue less, everything was bought hoping fit and forget, i’ll update once car is home and box is out
By sounds of the input there could be a few faultsto check for
i guess i could even try a borescope also
cheers Rob