Sorry guys, I know you're all sick of this, but I can't work out what this engine is...
KL31-1A1 heads with kl01 cams
Cams
Heads
I notice they have the large intake HLAs 33mm, and 30?mm exhaust.
Haven't got looking at the pistons yet... Gotta strip it down as water got in
Can't work out whether it's a late millenia or what? Thought is was a proper kl31 cammed straight neck, then found kl01 cams :O
kl31 1a1 head with kl01 cams
- marcdh
- Regular Member
- Posts: 1460
- Joined: July 26th, 2006, 3:54 pm
- Location: Belfast -Northern Ireland
- Contact:
kl31 1a1 head with kl01 cams
AZ-3 1498cc Turbo! EVO 8 turbo and manifold, 5 stud swap, SSR Type C, DIYPNP seq Megasquirt
Mx-3 2.5 V6 Turbo 291 BHP 251 lbft @ 8psi - Retired due to rust and back at uni
View Worklog
Mx-3 2.5 V6 Turbo 291 BHP 251 lbft @ 8psi - Retired due to rust and back at uni
View Worklog
- solo_ryder
- Senior Member
- Posts: 6289
- Joined: October 16th, 2004, 2:01 am
- Location: British Columbia
Re: kl31 1a1 head with kl01 cams
So the motor you got was a straight neck one or curve neck?
Curve neck = kl01 cams
Straight neck = kl31 cams
If you got a straight neck with kl01 cams it is possible, jsut unlikely. As long as you have kl31-1a1 heads though, that is a good thing.
Curve neck = kl01 cams
Straight neck = kl31 cams
If you got a straight neck with kl01 cams it is possible, jsut unlikely. As long as you have kl31-1a1 heads though, that is a good thing.
- marcdh
- Regular Member
- Posts: 1460
- Joined: July 26th, 2006, 3:54 pm
- Location: Belfast -Northern Ireland
- Contact:
Re: kl31 1a1 head with kl01 cams
Well the guy who got it first got it with the straight neck... Which is what threw me off with it having kl01 cams!
do the kl31-1a1 have the weak retainer problem? Just deciding to interprep valve spring and kl-03 retainers or not to bother!
Thanks for reply
do the kl31-1a1 have the weak retainer problem? Just deciding to interprep valve spring and kl-03 retainers or not to bother!
Thanks for reply
AZ-3 1498cc Turbo! EVO 8 turbo and manifold, 5 stud swap, SSR Type C, DIYPNP seq Megasquirt
Mx-3 2.5 V6 Turbo 291 BHP 251 lbft @ 8psi - Retired due to rust and back at uni
View Worklog
Mx-3 2.5 V6 Turbo 291 BHP 251 lbft @ 8psi - Retired due to rust and back at uni
View Worklog
- solo_ryder
- Senior Member
- Posts: 6289
- Joined: October 16th, 2004, 2:01 am
- Location: British Columbia
Re: kl31 1a1 head with kl01 cams
Yea, the kl31 1a1 heads have a tendency to drop valves. The KL01 cams are alright, if you can find a set of kl31's then bonus, but the car is still gonna be fast!
- Nd4SpdSe
- Senior Member
- Posts: 11212
- Joined: May 25th, 2002, 2:01 am
- Location: Québec City, Quebec, Canada
- Contact:
Re: kl31 1a1 head with kl01 cams
For as many ZE that are out there, there isn't really that many instances of dropped vales. Broken retainers are really only a concern forthose who abuse (over-rev) their motors. However, there are much less reports of dropping valves on KL01 ZE's, it's theorised that they have stronger retainers than their KL31 counterparts, but it couldn't hurt to upgrade them either.solo_ryder wrote:Yea, the kl31 1a1 heads have a tendency to drop valves. The KL01 cams are alright, if you can find a set of kl31's then bonus, but the car is still gonna be fast!
As previously mentioned, a KL01 cammed ZE is typical of it's curved-neck varient, while the KL31 cams are usually in the straight-neck ZE. It's extremely rare, but there are a few instances of 01 cams in a straight neck. It's quite possible that the intake manifolds have been swapped, but you never know.
1992 Mazda Mx-3 GSR - 2.5L KLZE : Award Winning Show Car & Race Car ['02-'09] (Retired)
2004 Mazda RX-8 GT - Renesis Wankel : LS3 Coils, BHR Mid-Pipe + Falken RT-615K 245/40r18
2011 Mazda Mazda2 GS - 1.5L Manual : Yozora Edition (1 of 500)
2003 Nissan Xterra SE - 4x4 Supercharged : 2" Body Lift, 4" Suspension Lift & 33" MTR Kevlar
2001 Nissan Frontier SE - The Frontrailer : Expedition/Off-Road Trailer Project
2004 Mazda RX-8 GT - Renesis Wankel : LS3 Coils, BHR Mid-Pipe + Falken RT-615K 245/40r18
2011 Mazda Mazda2 GS - 1.5L Manual : Yozora Edition (1 of 500)
2003 Nissan Xterra SE - 4x4 Supercharged : 2" Body Lift, 4" Suspension Lift & 33" MTR Kevlar
2001 Nissan Frontier SE - The Frontrailer : Expedition/Off-Road Trailer Project
- marcdh
- Regular Member
- Posts: 1460
- Joined: July 26th, 2006, 3:54 pm
- Location: Belfast -Northern Ireland
- Contact:
Re: kl31 1a1 head with kl01 cams
I'm happy to pay $400 for the comfort of reliability Plus I've started taking the heads off anyway so now is the time to do it right! I guess I'm one of those instances then, who knows what the japs get up to with these engines
Yea I expected to find kl31, but alas kl01 in a supposedly "true" straight neck ze. Now it's time to pray the water that dumped out my one cylinder hasn't rusted my piston, rings etc...(water got in it whilst in past the plugs in storage )
thanks again guys
Yea I expected to find kl31, but alas kl01 in a supposedly "true" straight neck ze. Now it's time to pray the water that dumped out my one cylinder hasn't rusted my piston, rings etc...(water got in it whilst in past the plugs in storage )
thanks again guys
AZ-3 1498cc Turbo! EVO 8 turbo and manifold, 5 stud swap, SSR Type C, DIYPNP seq Megasquirt
Mx-3 2.5 V6 Turbo 291 BHP 251 lbft @ 8psi - Retired due to rust and back at uni
View Worklog
Mx-3 2.5 V6 Turbo 291 BHP 251 lbft @ 8psi - Retired due to rust and back at uni
View Worklog