clear (dry or glazed) plug fouling??? Stumped....
#31
Registered
Since he changed one engine'splugs and it fired right up, and the other engine didn't until he did change those, I would go with that 1st and just try another set.
I believe his NGK's cross to a 42 Heat Range Delco. So, MR42T.
Difference would be the NGK's he has are not a resistor plug and the Delco's are.
I believe his NGK's cross to a 42 Heat Range Delco. So, MR42T.
Difference would be the NGK's he has are not a resistor plug and the Delco's are.
#32
Registered
What kills me here, is that is the main reason of using a MSD box. Enough power to fire off crappy condition plugs. Almost makes you wonder how the grounds are ? Do you knowhow many engines I find with the heads threaded holes that are used for grounds full of paint ? People love there paint !
I typically go one step further, and run a ground from the other cylinder head to that stud also, ust to make sure everythings grounded well. Clean those grounds ! Especially the threaded hole that you are grounding too. This goes for alternator brackets and their bolts and threaded attachment points.
I typically go one step further, and run a ground from the other cylinder head to that stud also, ust to make sure everythings grounded well. Clean those grounds ! Especially the threaded hole that you are grounding too. This goes for alternator brackets and their bolts and threaded attachment points.
#33
Platinum Member
Platinum Member
that's why the grounding studs are on the bellhousings..............speaking of grounding, how important is it to ground engine to engine ?? I ask because when I pulled my 502's years ago they were tied together with a big black cable.
Last edited by F-2 Speedy; 06-08-2016 at 11:54 AM.
#35
What kills me here, is that is the main reason of using a MSD box. Enough power to fire off crappy condition plugs. Almost makes you wonder how the grounds are ? Do you knowhow many engines I find with the heads threaded holes that are used for grounds full of paint ? People love there paint !
I typically go one step further, and run a ground from the other cylinder head to that stud also, ust to make sure everythings grounded well. Clean those grounds ! Especially the threaded hole that you are grounding too. This goes for alternator brackets and their bolts and threaded attachment points.
I typically go one step further, and run a ground from the other cylinder head to that stud also, ust to make sure everythings grounded well. Clean those grounds ! Especially the threaded hole that you are grounding too. This goes for alternator brackets and their bolts and threaded attachment points.
#36
Platinum Member
Platinum Member
Thread Starter
Since he changed one engine'splugs and it fired right up, and the other engine didn't until he did change those, I would go with that 1st and just try another set.
I believe his NGK's cross to a 42 Heat Range Delco. So, MR42T.
Difference would be the NGK's he has are not a resistor plug and the Delco's are.
I believe his NGK's cross to a 42 Heat Range Delco. So, MR42T.
Difference would be the NGK's he has are not a resistor plug and the Delco's are.
What kills me here, is that is the main reason of using a MSD box. Enough power to fire off crappy condition plugs. Almost makes you wonder how the grounds are ? Do you knowhow many engines I find with the heads threaded holes that are used for grounds full of paint ? People love there paint !
I typically go one step further, and run a ground from the other cylinder head to that stud also, ust to make sure everythings grounded well. Clean those grounds ! Especially the threaded hole that you are grounding too. This goes for alternator brackets and their bolts and threaded attachment points.
I typically go one step further, and run a ground from the other cylinder head to that stud also, ust to make sure everythings grounded well. Clean those grounds ! Especially the threaded hole that you are grounding too. This goes for alternator brackets and their bolts and threaded attachment points.
#37
Registered
I see the bellhousing stud threads (in block) - thank you - all painted up too.
What would someone say if a boat i worked on a few years ago had no issues other than an extended amt of time of cranking over condition because of a leaking quadraet main plug. which I repaired and all was well after. Fired right up. No draining issues.
So....this same boat next spring is due for cap/rotor/plugs and wires...while routing the wires and touching the big ground wire, the stud moved. I was like, what ? The fuker wasn't even threaded into the block. In dismay, I moved stud further from block/bellhousing and the motor cranked and fired right up and all worked with no issue. WTF ? Is this magic ? Only one ground cable from battery (2nd battery grounded to main battery) to block. All the little grounds ran to this stud. I spent a few hrs looking for another way this engine was grounded and could find none. I still scratch my head on that one as the amt of issues I still see to this day from seemingly good grounds, but apparently not good enough, causing minor to maor issues. Engine was a basic small block with quadrajet and TBV.
Last edited by SB; 06-08-2016 at 12:31 PM. Reason: I do not have an extended crank either
#38
Registered
#39
Platinum Member
Platinum Member
extended crank I get this now..........you mean it was hard to start. Ive heard of an extended crank before but don't own one.....lol
#40
Registered
LOL. I edited it to avoid confusion. Also note my 'reason for editing'note. HAH !