HP 500 PVC & Lifter Valley Pan
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HP 500 PVC & Lifter Valley Pan
I am having some minor moisture issues with my HP 500 clone.
Do Merc HP 500s use a PVC valve on the Dart intake? I have an OEM HP 500 intake and it has a grommet in the valley and a 1/4 NPT fitting below carb.
Do Merc HP 500s use a lifter valley pan (heat shield)?
THANKS!
Do Merc HP 500s use a PVC valve on the Dart intake? I have an OEM HP 500 intake and it has a grommet in the valley and a 1/4 NPT fitting below carb.
Do Merc HP 500s use a lifter valley pan (heat shield)?
THANKS!
Last edited by RickR; 10-19-2010 at 07:26 PM.
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JIMG
I cannot find the OEM HP500 PVC valve or parts available on the Mercury Marine or Doug Russell websight/parts illusturations???????
I have 18 in/Hg @ 1000 RPMs (in neutral). Will an automotive PVC valve work? Is it set up with a 1/4" (3/16"?)hose and brass nipple on the intake below the carb?
Griff
I have the standard Gil Offshore risers (Gil's late model tall ones will not fit under the hatch). Do any of the online retailers modify the inner exhaust tube on the Offshores (make it longer) to reduce reversion? Gils websight is down??????
THANKS for the replies!
I cannot find the OEM HP500 PVC valve or parts available on the Mercury Marine or Doug Russell websight/parts illusturations???????
I have 18 in/Hg @ 1000 RPMs (in neutral). Will an automotive PVC valve work? Is it set up with a 1/4" (3/16"?)hose and brass nipple on the intake below the carb?
Griff
I have the standard Gil Offshore risers (Gil's late model tall ones will not fit under the hatch). Do any of the online retailers modify the inner exhaust tube on the Offshores (make it longer) to reduce reversion? Gils websight is down??????
THANKS for the replies!
Last edited by RickR; 10-20-2010 at 02:41 PM.
#6
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JIMG
I cannot find the OEM HP500 PVC valve or parts available on the Mercury Marine or Doug Russell websight/parts illusturations???????
I have 18 in/Hg @ 1000 RPMs (in neutral). Will an automotive PVC valve work? Is it set up with a 1/4" (3/16"?)hose and brass nipple on the intake below the carb?
Griff
I have the standard Gil Offshore risers (Gil's late model tall ones will not fit under the hatch). Do any of the online retailers modify the inner exhaust tube on the Offshores (make it longer) to reduce reversion? Gils websight is down??????
THANKS for the replies!
I cannot find the OEM HP500 PVC valve or parts available on the Mercury Marine or Doug Russell websight/parts illusturations???????
I have 18 in/Hg @ 1000 RPMs (in neutral). Will an automotive PVC valve work? Is it set up with a 1/4" (3/16"?)hose and brass nipple on the intake below the carb?
Griff
I have the standard Gil Offshore risers (Gil's late model tall ones will not fit under the hatch). Do any of the online retailers modify the inner exhaust tube on the Offshores (make it longer) to reduce reversion? Gils websight is down??????
THANKS for the replies!
the intake in the picture looks like a dual plane though)
it shows the galley tray and pcv hardware
http://www.mercruiserparts.com/Show_...ND+FRONT+COVER
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Jaay and Ez
Thanks for the help. I'll order a PCV valve from Bam and compare it to an auto valve..
Giff
Do not want to change cams, short block is pretty fresh and I am using stock lifters and dog bones. I think I will try extending the Gil Offshore tail pipes a few inches to lessen the reversion. Engine purrs like a kitten (800rpm idle in gear) when warm BUT cold idle is awfull
THANKS for the replies!
Thanks for the help. I'll order a PCV valve from Bam and compare it to an auto valve..
Giff
Do not want to change cams, short block is pretty fresh and I am using stock lifters and dog bones. I think I will try extending the Gil Offshore tail pipes a few inches to lessen the reversion. Engine purrs like a kitten (800rpm idle in gear) when warm BUT cold idle is awfull
THANKS for the replies!
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EZ
I cannot figure out the cold idle issue I have a lifter ticking so I am getting ready to set valve lash BUT #6 intake lifter does not want to pump up @ cranking speed.
On another post it was mentioned that all valve lash must be set exactly the same. I have not checked mine in 400 hours
Gen VI
169611
HP 500 Holley 800, 1/8" holes in primary throttle plate
MSD Ignition and Dist 18* initial
9.5 CR
111* Intake lobe centerline
Stock lifters and dog bones
I have a new 830 ready to run. If the lash and exhaust does not help I'll install it. BUT, I am considering Pro 1s. SOOOOOO I might do the whole top end.
I cannot figure out the cold idle issue I have a lifter ticking so I am getting ready to set valve lash BUT #6 intake lifter does not want to pump up @ cranking speed.
On another post it was mentioned that all valve lash must be set exactly the same. I have not checked mine in 400 hours
Gen VI
169611
HP 500 Holley 800, 1/8" holes in primary throttle plate
MSD Ignition and Dist 18* initial
9.5 CR
111* Intake lobe centerline
Stock lifters and dog bones
I have a new 830 ready to run. If the lash and exhaust does not help I'll install it. BUT, I am considering Pro 1s. SOOOOOO I might do the whole top end.
Last edited by RickR; 10-23-2010 at 03:39 PM.