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Author Topic: No Compression on # 2  (Read 2816 times)

Offline John Hartman

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Re: No Compression on # 2
« Reply #15 on: August 25, 2012, 11:10:43 pm »
huh.  Big burns?

I have yet to see that.  Not saying it can't happen, obviously it can, but the ones I have seen all had like 15-30 psi on that one cylinder and normal on the others.

I hope its that, cheaper and easier, but I still suggest a leak down test
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Offline Brett Haviland

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Re: No Compression on # 2
« Reply #16 on: August 25, 2012, 11:16:34 pm »
oh yeah. the one i took out of the champagne had a huge chunk burned out of it.  looked like someone took a acetalene torche to it and blasted it away.  that happend at 19 psi of boost on stock MAS/fuel pump/injectors.  OOPS.

heres a pic of the valve in question (from the champagne talon)... luckily the seat was undamaged and i was able to get away with a new headgasket and a used valve...  and i upgraded to ARP's at the same time lol  

« Last Edit: August 25, 2012, 11:19:03 pm by Brett Haviland »
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Offline John Hartman

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Re: No Compression on # 2
« Reply #17 on: August 26, 2012, 07:31:41 am »
ouch!  Yea the ones I have seen have only been 1/3 that size.  They do look like torch cuts tho eh?

Being that the OP posted that its been super low boost I don't think its gonna be like this one but who knows until its tested.
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91 Eagle Talon TSi 5spd awd.  GT-12, TriFlow Cams, 850s, Tial, JIC, Jackal, sticky rubber.
86 Merkur XR4Ti 5spd, rwd, turbo, 91,381km.  Original paint, heated leather. intercooled, big VAM, Full 3" exhaust, Cossie sway bar, 16" tires.
06 Mazdaspeed6 6spd awd, DISI turbo, heated leather HIDs, Corksport, Cobb, Konig, Centric...
2018 VW Golf Alltrack turbo Tornado Red, 6mt, some free mods

Offline Brett Haviland

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Re: No Compression on # 2
« Reply #18 on: August 26, 2012, 07:35:13 am »
Thats something on my shopping list....  A leakdown tester... 

maybe u can buy one for my christmas present john??  :) :) :) :D
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Offline Jordan Kruger

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Re: No Compression on # 2
« Reply #19 on: August 26, 2012, 12:56:45 pm »
I totally want to get one aswell.  I need to do a leak down before I run the new motor.
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Offline John Hartman

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Re: No Compression on # 2
« Reply #20 on: August 26, 2012, 08:53:14 pm »
maybe a club tool?  or are we all too immature to make that work?
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91 Eagle Talon TSi 5spd awd.  GT-12, TriFlow Cams, 850s, Tial, JIC, Jackal, sticky rubber.
86 Merkur XR4Ti 5spd, rwd, turbo, 91,381km.  Original paint, heated leather. intercooled, big VAM, Full 3" exhaust, Cossie sway bar, 16" tires.
06 Mazdaspeed6 6spd awd, DISI turbo, heated leather HIDs, Corksport, Cobb, Konig, Centric...
2018 VW Golf Alltrack turbo Tornado Red, 6mt, some free mods

Offline John Hartman

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Re: No Compression on # 2
« Reply #21 on: August 26, 2012, 08:53:32 pm »
oh and on a new motor,do the breakin first, then a leakdown
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91 Eagle Talon TSi 5spd awd.  GT-12, TriFlow Cams, 850s, Tial, JIC, Jackal, sticky rubber.
86 Merkur XR4Ti 5spd, rwd, turbo, 91,381km.  Original paint, heated leather. intercooled, big VAM, Full 3" exhaust, Cossie sway bar, 16" tires.
06 Mazdaspeed6 6spd awd, DISI turbo, heated leather HIDs, Corksport, Cobb, Konig, Centric...
2018 VW Golf Alltrack turbo Tornado Red, 6mt, some free mods

Offline Jordan Kruger

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Re: No Compression on # 2
« Reply #22 on: August 26, 2012, 09:45:56 pm »
Im going to look into getting the parts to make one. Ill gladly lend it out whenever after ive made it and used it. Its simple to make.
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337awhp.  ---> 500 awhp ? =)

Replacing parts since early 2010.

Offline daniel Dee

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Re: No Compression on # 2
« Reply #23 on: August 26, 2012, 10:17:54 pm »
I lend out my moroso leakdown tester and never got it back...I don't even know who has it.
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Offline John Hartman

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Re: No Compression on # 2
« Reply #24 on: August 27, 2012, 08:38:41 pm »
that sucks Dan..

someone cought it up!
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91 Eagle Talon TSi 5spd awd.  GT-12, TriFlow Cams, 850s, Tial, JIC, Jackal, sticky rubber.
86 Merkur XR4Ti 5spd, rwd, turbo, 91,381km.  Original paint, heated leather. intercooled, big VAM, Full 3" exhaust, Cossie sway bar, 16" tires.
06 Mazdaspeed6 6spd awd, DISI turbo, heated leather HIDs, Corksport, Cobb, Konig, Centric...
2018 VW Golf Alltrack turbo Tornado Red, 6mt, some free mods

Offline Justin Imperial

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Re: No Compression on # 2
« Reply #25 on: August 29, 2012, 12:43:05 am »
Got my head out! Here some pics





Should i take it to a machine shop like B&J's or
should i replace the valve and do it myself?


« Last Edit: August 29, 2012, 12:47:35 am by Justin Imperial »
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Offline Justin Imperial

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Re: No Compression on # 2
« Reply #26 on: August 29, 2012, 07:40:41 am »
Brett - do u know any place to get only a single valve? Everywhere I've called only sold them as a set
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Offline Jason Harwood

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Re: No Compression on # 2
« Reply #27 on: August 29, 2012, 08:06:57 am »
Quote from: Justin Imperial on August 29, 2012, 07:40:41 am
Brett - do u know any place to get only a single valve? Everywhere I've called only sold them as a set

I'd get the head to a machine shop for a hot tanking and clean while its off.
Check people who are selling motors in parts for a valve.
I bet even brett has some valves for you.
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Offline Matt Vangaalen

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Re: No Compression on # 2
« Reply #28 on: August 29, 2012, 11:50:05 am »
Lordco Machine Shop in Langley cleaned my head and did a great job, I have a set of used valves I'm in north delta pm me if u wanna meet up.
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Offline Marke Bailey

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Re: No Compression on # 2
« Reply #29 on: August 29, 2012, 12:09:48 pm »
Quote from: John Hartman on August 26, 2012, 08:53:32 pm
oh and on a new motor,do the breakin first, then a leakdown

I recommend doing the leak down before starting the motor. that way if there are any issues with the head sealing it can be dealt with. Rg does it this way. then break in and leak down again.
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